Proceedings of the IEEE
International Telecommunications
Symposium
(ITS)
Fortaleza, Ceara, Brazil
3-6 September 2006
Pages 1-517
IEEE Catalog Number:
ISBN:
CFP06ITE-PRT
978-1-4244-3644-6
TABLE OF CONTENTS
Optimization of Wavelength Assignment in an Optical Link Considering Four Wave
Mixing Using Genetic Algorithm .......................................................................................................................1
Helder A. Pereira, Daniel A. R. Chaves, Carmelo J. A. Bastos-Filho, Joaquim F. Martins-Filho
Wavelet Analysis As an Information Processing Technique ...........................................................................7
H. M. de Oliveira, D. F. de Souza
Numerical Analysis in Triangular and Planar Three-core Nonlinear Optical Fiber
Couplers (TNLDC) Operating Logical Gates.................................................................................................13
J.W.M. Menezes, W. B. de Fraga, M.G. da Silva, A. C. Ferreira, A.F.G.F.Filho, A. F. de Morais
Neto, C.S. Sobrinho, A. S. B. Sombra
Dynamic Traffic Analysis of Metro-access Optical Packet Switching Networks Having
Mesh Topologies ................................................................................................................................................19
Indayara Bertoldi Martins, Luiz Henrique Bonani, Felipe Rudge Barbosa, Edson Moschim
New Trigonometric Transforms Over Prime Finite Fields for Image Filtering..........................................23
Juliano Bandeira, Ricardo M. Campello de Souza
A Fuzzy Approach for Adaptive Control of MPLS Network Traffic Flows ................................................29
Ligia Maria Carvalho Sousa, Flavio Henrique Teles Vieira, Luan Ling Lee
A New Propagation Model for Cellular Planning ..........................................................................................35
José Nilson C. de Oliveira, Marcelo S. Alencar , Valdemar C. da Rocha Jr., Waslon T. A. Lopes
On the Multivariate ®-¹ Distribution with Arbitrary Correlation ...............................................................38
Rausley A. A. de Souza, Gustavo Fraidenraich, Michel D. Yacoub
Circulant Graphs and Spherical Codes...........................................................................................................42
S. I. R. Costa, J. E. Strapasson, R. M. Siqueira, M. Muniz
Method for Obtaining Spectrally Efficient Orthogonal UWB Pulse Shapes ...............................................46
Joao A. Ney da Silvay, Marcello L. R. de Campos
Modified Modex Method for Direction Finding with Improved Threshold Performance .........................52
Rafael Krummenauer, Francislei J. da Silva, Amauri Lopes
Alternatives of Interactivity in a Digital Terrestrial TV Platform: a Techno-economic
Approach............................................................................................................................................................58
M.C. Marques, J.C. L. Pinto, J. M. M. Rios
Experimental and Theoretical Analysis of Packaging Inductances and Stray Capacitances
of a Semiconductor Optical Amplifier.............................................................................................................63
Adriano L. Toazza, Murilo Guimarães, Carlos A.C. Petersen, Cristiano M. Gallep, Evandro Conforti
Four Wave Mixing in a Dispersion Decreasing Fiber (DDF) for a Wdm System........................................67
C.F. Wehmann , L. M. Fernandes , J. L. S. Lima , M.G. da Silva, J. A . Medeiros Neto, E.F de
Almeida, A. S .B. Sombra
Admission Control for VOIP Over Hsdpa in a Mixed Traffic Scenario ......................................................71
Andre R. Braga , Stefan Wanstedt, Marten Ericson
Novel Scheduling Algorithms Aiming for QOS Guarantees for VOIP Over HSDPA ................................77
Andre R. Braga , Emanuel B. Rodrigues, Francisco R. P. Cavalcanti
Packet Scheduling for Voice Over IP Over HSDPA in Mixed Traffic Scenarios with
Different End-to-end Delay Budgets................................................................................................................83
Andre R. Braga, Emanuel B. Rodrigues, Francisco R. P. Cavalcanti
An Efficient Lloyd-max Quantizer for Matching Pursuit Decompositions..................................................89
Lisandro Lovisolo, Eduardo A. B. da Silva, Paulo S. R. Diniz
Parameter Optimization for Importance Sampling in Encoded Systems ....................................................95
Hallyson L. M. Melo, Edmar C. Gurjão, Bruno B. Albert, Francisco M. de Assis
Evaluation of Transient Dynamic Impact in Gain Controlled EDFAS......................................................100
J. C. R. F. Oliveira, C. Floridia, S. M. Rossi, J. B. Rosolem, A. C. Bordonalli
Dispersion Characteristics of Fin Lines with Photonic Substrate...............................................................103
Humberto César Chaves Fernandes and Davi Bibiano Brito
Air Core Waveguides Composed by Elliptical Metallic Nanostructures Operating at
Optical Frequencies ........................................................................................................................................109
V. F. Rodriguez-Esquerre, C. E. Rubio-Mercedes, H. E. Hernández-Figueroa
Novel Frequency Domain Finite Element Formulation for Optical Circuits in Nonlinear
Photonic Crystals ............................................................................................................................................113
C. E. Rubio-Mercedes, V. F. Rodríguez-Esquerre, H. E. Hernández-Figueroa
Analysis of Optical Switching Circuits Based on Nonlinear Photonic Crystals by the
Frequency Domain Finite Element Method..................................................................................................118
C. E. Rubio-Mercedes, V. F. Rodríguez-Esquerre, H. E. Hernández-Figueroa
Further Results on Convolutional Codes Based on a Minimal Trellis Complexity Measure...................123
Bartolomeu F. Ucha-Filho, Richard Demo Souza, Cecilio Pimentel, Marcel Jar
Nonlinearity and Dispersion Tolerances of SSB-DCS-RZ, SSB-AMI-RZ, and Bl-PSBT in
Long-haul UDWDM Transmission Systems .................................................................................................129
Adolfo V. T. Cartaxo, Natasa B. Pavlovic, Tiago M. R. Dias
Resource Allocation for Multicarrier CDMA Systems in Ultra-wideband Communications ..................135
Antoine Stephan, Jean-Yves Baudais, Jean-François Hélard
Surface Plasmon Polariton Propagation in Y-shaped Metallic Channels Junctions.................................141
C. E. Rubio-Mercedes, V. F. Rodríguez-Esquerre, Antônio Manoel Ferreira Frasson, H. E.
Hernández-Figueroa
Identification of Lattices from Genus of Compact Surface .........................................................................146
Edson Donizete de Carvalho
MIMO Measured Channels: Capacity Results and Analysis of Channel Parameters..............................152
R.D. Vieira, J.C.B.Brandao, G.L. Siqueira
Spatio-temporal and Finite Element Method for Analysis of the Propagation of Optical
Ultra-short Pulses in Non-linear Media ........................................................................................................158
L.L Bravo-Roger, J. P. da Silva, H. E. Hernández-Figueroa, A. P. L. Barbero, K. Z. Nóbrega
Multiresolution Division Multiplex (MRDM): a New Wavelet-based Multiplex System .........................161
H. M. de Oliveira, Eric A. Bouton
Fringe Benefits of the H.264/AVC .................................................................................................................166
Ricardo L. de Queiroz, Rafael S. Ortis, Alexandre Zaghetto, Tiago A. Fonseca
Communication Channel Simulation Tool Based on Geometrical and Statistical Model for
Macro Cell Environments ..............................................................................................................................171
Luiz Cezar Trintinalia, Sergio Duque Castilho
An Upper Bound for the Capacity of Distributed MIMO Mobile Ad Hoc Networks ...............................175
Renato M. de Moraes, Bartolomeu F. Uchˆoa Filho, Hamid R. Sadjadpour, J.J. Garcia-Luna-Aceves
Queueing Analysis for Multifractal Traffic Through Network Calculus and Global Scaling
Parameter ........................................................................................................................................................181
Flavio Henrique Teles Vieira, Luan Ling Lee
Adaptive Detection Using Widely Linear Processing with Data Reusing for DS-CDMA
Systems.............................................................................................................................................................187
Amaro A. de Lima, Rodrigo C. de Lamare
Mapping the Impulse Noise Spectral Features from Waveform Domain Onto Symbol
Domain .............................................................................................................................................................193
Ronaldo de Freitas Zampolo, Jaume Rius I Riu, Elmar Trojer, Boris Dortschy
Ultra-flattened Chromatic Dispersion Using a Step Index Holey Fiber.....................................................198
J. P. da Silva, V. F. Rodríguez-Esquerre, H. E. Hernández-Figueroa
Modeling, Simulation and Estimation of PLC Channels .............................................................................201
Rodrigo S. Mello, Marco A. Grivet
Middleware Performance Evaluation in Wireless Sensor Networks..........................................................207
Admilson R. L. Ribeiro, Lilian C. Freitas, Carlos R. L. Francês, João Crisóstomo, W. A. Costa
Identification of Nonlinear MIMO Radio Over Fiber Uplink Channels....................................................213
Carlos A. R. Fernandes, Alain Kibangou, Gerard Favier, Joao C. M. Mota
Analysis of Traffic Management Mechanisms in Wireless Networks: Performance
Comparison Study...........................................................................................................................................219
Glaucio H. S. Carvalho, Rodrigo S. C. Cruz, Victor S. Martinsy, Carlos R. L. Frances, Joao C. W. A.
Costay, Solon V. Carvalho
A Dynamic Channel Allocation Mechanism for IEEE 802.11 Networks ...................................................225
Marcel William Rocha da Silva, Jose Ferreira de Rezende
Joint Transmit Diversity and Downlink Beamforming by Using a Minimum BER
Criterion...........................................................................................................................................................231
Danilo Zanatta Filho, Luc Fety
A MAC and PHY Analytical Cross-layer Model for Energy Consumption in IEEE 802.11
Networks ..........................................................................................................................................................237
Roger Pierre Fabris Hoefel
QoS Monitoring and Failure Detection .........................................................................................................243
Gean D. Breda, Leonardo de S. Mendes
Optimization of Bragg Grating in Optical Fiber Using Modified Fitness Function and an
Accelerated Genetic Algorithm......................................................................................................................249
M. J. Sousa, C. S. Sales Jr., J. C. C. Carvalho, J. C. W. A. Costa, C. R. L. Francs, M. E. V. Segatto
On the Nakagami-m Autocorrelation and Power Spectrum Functions: Field Trials and
Validation.........................................................................................................................................................253
Ugo Silva Dias, Michel Daoud Yacoub, Jose Candido S. Santos Filho, Gustavo Fraidenraich, Daniel
Benevides da Costa
Improving Multiscale Recurrent Pattern Image Coding with Enhanced Dictionary
Updating Strategies.........................................................................................................................................257
Nuno M. M. Rodrigues, Eduardo A. B. da Silva, Murilo B. de Carvalho, S´ergio M. M. de Faria,
Vitor M. M. da Silva
Face Recognition Independent of Facial Expression Through SOM-based Classifiers............................263
Isaque Q. Monteiro, Samy D. Queiroz, Alex T. Carneiro, Luis G. Souza, Guilherme A. Barreto
3D Ray-tracing Parallel Model for Radio-propagation Prediction ............................................................269
Andre Mendes Cavalcante, Marco Jose de Sousa, Joao Crisostomo Weyl Albuquerque Costa, Carlos
Renato Lisboa Frances, Gervasio Protasio dos Santos Cavalcante, C. S. Sales Jr.
On Efficient Implementations of the Set-membership NLMS Algorithm for Real-time
Applications .....................................................................................................................................................275
Jose A. Apolinario Jr., Marcello L. R. de Campos
Web Services for the New Internet: Discussion and Evaluation of the Provisioning of
Interdomain Services ......................................................................................................................................279
Fabio L. Verdi, Rafael Pasquini, Maur cio Magalhaes, Edmundo Madeira
An Optical UNI Architecture for the GIGA Project Testbed Network......................................................285
Rafael Pasquini, Fabio L. Verdi, Luiz Gustavo Zuliani, Maur cio Magalhaes, Sandro Rossi,
Inverse Scattering of an Embedded Inhomogeneous Dielectric Cylinders Coated on a
Conductor ........................................................................................................................................................291
Chun Jen Lin, Chung-Hsin Huang, Chien-Ching Chiu
Novel 3D Orthogonal Basis Functions for the Vector Wave Equation Solution........................................295
M. S. Gonçalves, H. E. Hernandez-Figueroa, A. C. Bordonalli
An Implementation of an OSPF-TE to Support GMPLS-controlled All-optical WDM
Networks ..........................................................................................................................................................300
Luiz Gustavo Zuliani, Marcio Savasini, Gustavo Sousa Pavani, Rafael Pasquini, Fabio L. Verdi,
Maur cio Magalhaes,
Statistical Analysis of the FXLMS Algorithm About the Steady-state Solution........................................306
Leonardo S. Resende, José Carlos M. Bermudez
FPGA-based Fractional Brownian Motion Signal-patterns for Optical Packet Generation....................310
G.Loss, R. Coelho
Performance of Energy Efficient Game Theoretical-based Power Control Algorithm in a
Discrete Power Environment .........................................................................................................................316
F. de S. Chaves, R. B. Santos, F. R. P. Cavalcanti, R. A. de Oliveira Neto
Performance Evaluation of Adaptive H8 Space-time Equalizers for Wireless
Communication Systems with Asynchronous Interference.........................................................................322
F. de S. Chaves, A. L. F. de Almeida, J. C. M. Mota
A Rule-based Grapheme-to-phone Converter for TTS Systems in European Portuguese.......................328
Daniela Braga, Luís Coelho, Fernando Gil Vianna Resende Jr
An Enhanced Allocation Resource Mechanism for DiffServ Domains Using Bandwidth
Broker ..............................................................................................................................................................334
Lúcio Reis, Paulo Roberto Guardieiro
On the Construction of Unit Databanks for Text-to-speech Systems .........................................................340
Vagner L. Latsch, Sergio L. Netto
Space-time Blind Decision Feedback Equalizer ...........................................................................................344
Joao Mendes Filho, Magno T. M. Silva, Maria D. Miranda
Comparative Performance of Compact Linear and Circular Antenna Arrays with Mrc
Combiner for Uniform and Gaussian Doa Probability Distributions ........................................................350
Wamberto J. L. Queiroz, Marcelo S. Alencar
Compression of Atomic Decompositions Using R-D Optimum Dictionary Selection ...............................355
Michel P. Tcheou, Lisandro Lovisolo, Eduardo A. B. da Silva, Marco A. M. Rodrigues, Paulo S. R.
Diniz
Performance Comparison of Convolutional and Turbo Convolutional Codes for ISDB-T in
AWGN and Brazilian Channels.....................................................................................................................361
Yuzo Iano, Diogo Gará Caetano, Rangel Arthur, Eduardo Carrara, Cristiano Akamine
Upper Bounds for Commutative Group Codes: the Odd Case...................................................................367
Rogerio Monteiro de Siqueira, Sueli I. Rodrigues Costa
Performance Monitoring of Individual VoIP Flows on Diffserv Networks ...............................................370
Edmundo Zuchowski Filho, Keiko Veronica Ono Fonseca
Improving DVB-T for Brazilian Environments ...........................................................................................376
Cristiano Akamine, Yuzo Iano, Rangel Arthur, Gunnar Bedicks Jr., Diogo Gará Caetano
A Space-time Equalizer Based on Orthonormal Functions.........................................................................381
Ricardo Rodrigues de Araujo , Joao Cesar M. Mota
An Algebraic Receiver for Full Response CPM Demodulation ..................................................................387
Aline Neves, Mamadou Mboup, Michel Fliess
Real-time Video Based Finger Spelling Recognition System Using Low Computational
Complexity Artificial Neural Networks.........................................................................................................393
T. A. C. Bragatto, G. I. S. Ruas, M. V. Lamar
A Variable Priorities MAC Protocol for Broadband Wireless Access with Improved
Channel Utilization Among Stations .............................................................................................................398
L. F. M. de Moraes, P. D. Maciel Jr.
A Management and Configuration Infrastructure for RNP´s Digital Video Distribution
Service ..............................................................................................................................................................404
Fernando Luiz de Almeida, Glêdson Elias da Silveira, Guido Lemos de Souza Filho, Graça Bressan
A Feasibility Study of PLC Technology for Digital Inclusion .....................................................................410
Jorge A. M. de Souza, Marcelino S. da Silva, Carlos R. L. Francês, João C. W. A. Costa, Marcelo E.
V. Segatto, Flavio R. Antonio, Nandamudi. L. Vijaykumar
Real-time 4x4 Intraframe Prediction Architecture for a H.264 Decoder...................................................416
Wagston Tassoni Staehler, Altamiro Amadeu Susin
Optimization of the Number of Gaussian Components for Speaker Identification ..................................422
R.J.R. Cirigliano, F.G.V. Resende Jr.
A Grouping Strategy for Parallel Group Detection in Synchronous Gaussian CDMA
Channels...........................................................................................................................................................426
Marcelo F. Marçal, Tiago T. V. Vinhoza, Fabian D. Backx, Raimundo Sampaio-Neto
A MPEG-2 Video Transcoder for the Brazilian System of Digital Television...........................................432
Fabr cio C. de A. Oliveira, Kleber Teraoka, Max H. M. Costa
A Simple Greedy Scheme for Multicell Capacity Maximization ................................................................435
Saad G. Kiani, David Gesbert, Jan Egil Kirkebø, Anders Gjendemsjø, Geir E. Øien
Performance Analysis of Channel Estimation Algorithms for a MIMO OFDM System
Under Digital TV Channels............................................................................................................................441
Gustavo Corrêa Lima, Luciano Leonel Mendes, Carlos Aurélio F. da Rocha, Renato Baldini Filho
Evaluation of Wireless Links in a Hybrid Network Structure for Mobile Voip Services.........................446
D. F. S. Santos, J. L. Nascimento, O. C. Silva Filho, A. Perkusich
Fullwave Analysis of Reflectarrays on Double Iso/anisotropic Layers ......................................................452
Adriano Gouveia de Souza, Paulo Farias Braga, Adaildo Gomes D’Assunção
The Compromise with the Covered Area and the Bit Error Rate in a Suburban
Environment Densely Arboreous...................................................................................................................456
Simone G. C. Fraiha, Josiane C. Rodrigues, Herm´ nio S. Gomes,Glaucio H. S. Carvalho, Gervasio
P. S. Cavalcante
Theoretical and Experimental Investigation of Tapered Microstrip Antennas for Wireless
Communications..............................................................................................................................................461
A. G. D’Assunção Jr., R. M. S. Cruz, F. C. Costa, L. M. Mendonça, A. G. D’Assunção
Neuromodelling of Tapered Microstrip Antennas and Frequency Selective Surfaces .............................464
Patric Lacouth da Silva, Adaildo Gomes D’Assunção
A New Quasi-yagi Bowtie Type Integrated Antenna ...................................................................................468
F. C. Costa, G. Fontgalland, A. G. D´Assunção, T. P. Vuong, L. M. Mendonça
Interactive Applications for Digital TV Using Internet Legacy – a Successful Case Study .....................472
Márcio Gurjão Mesquita, Osvaldo de Souza
New Resources for Brazilian Portuguese: Results for Grapheme-to-phoneme and Phone
Classification....................................................................................................................................................477
Chadia Hosn, Luiz Alberto Baptista, Tales Imbiriba, Aldebaro Klautau
Performance of WLAN and MANET Networks for New Auto-configured Mobile IP
Agents...............................................................................................................................................................483
G. Amvame-Nze, Flavio E. de Deus, Roque Lambert, C. Jacy Barenco Abbas, L. J. García Villalba
A Three-dimensional Microcellular Propagation Street Model Using Vectorial Analysis in
UHF Band ........................................................................................................................................................489
Edgar Silva, Jr., Gilberto Arantes Carrijo
A Numerical Solution for the Accessible Quantum Information Problem ................................................495
Edmar J. Nascimento, Francisco M. Assis
A Comparison Between the Perfectly Matched Layer and the Self- Teleportation of Fields
Conditions ........................................................................................................................................................501
Alexandre M. Milagre, Silvio E. Barbin
Switching Linear Turbo Equalizers with Three Vector of Coefficients .....................................................506
Leonardo Cavalcanti de Sá Neto, Juraci Ferreira Galdino, Ernesto Leite Pinto
Detector Polarization Scheme for Fragile, Semi-fragile and Hybrid Digital Watermarking...................512
Marcos de Castro Pacitti, Weiler Alves Finamore
New Constrained Blind Adaptive Receivers for DS-CDMA Systems Based on Group
Constraints.......................................................................................................................................................518
Tiago T. V. Vinhoza, Rodrigo C. de Lamare, Raimundo Sampaio-Neto
Segmented Optimal Linear Prediction Applied to Lossless Image Coding................................................524
Paulo Roberto Rosa Lopes Nunes
Probabilistic Access Functions for Multi-cell Wireless Schemes ................................................................529
Jan Egil Kirkebø, David Gesberty, Saad G. Kianiy
On Recurrent Neural Networks for Auto-similar Traffic Prediction: a Performance
Evaluation ........................................................................................................................................................534
Jose M. P. Menezes, Guilherme A. Barreto
Combining Diversity and Multiplexing in Wireless Communications Systems.........................................540
José René Cuervo Aragón, Evelio Martín García Fernández
Measured Distribution of the Duration of Fades at 1.8 GHZ......................................................................545
Antonio M O Ribeiro, Claudio Selmi Castelli, Evandro Conforti
A Rule-based Grapheme-phone Converter and Stress Determination for Brazilian
Portuguese Natural Language Processing.....................................................................................................550
Denilson C. Silva, Amaro A. de Lima, R. Maia, Daniela Braga, Jo˜ao F. de Moraes, Jo˜ao A. de
Moraes, Fernando G. V. Resende Jr.
Interference Cancellation Receiver for Multiple-access Space-time Block-coded Systems
Over Frequency Selective Channels ..............................................................................................................555
Walter Freitas Jr., Rodrigo Cavalcanti, Andre de Almeida
Equalization of Keystroke Timing Histograms for Improved Identification Performance......................560
Jugurta Montalvao, Carlos Augusto S. Almeida, Eduardo O. Freire
On the Convergence Speed of Inverse Identification Adaptive IIR Filters................................................566
Phillip M. S. Burt
FXLMS Algorithm with Variable Step Size and Variable Leakage Factor for Active
Vibration Control............................................................................................................................................572
Walter A. Gontijo, Orlando J. Tobias, Rui Seara, Eduardo M. O. Lopes
Analyzing the QOS of VOIP on Sip in Java..................................................................................................576
J.M. da Silva Jr., R. D. Lins
Quantum Search Algorithm Using Quantum Bit String Comparator .......................................................582
David Sena Oliveira, Paulo Benício Melo de Sousa, Rubens Viana Ramos
On the Arithmetic Fuchsian Groups Derived from Quaternion Orders....................................................586
Vandenberg Lopes Vieira, Reginaldo Palazzo Jr., Mercio Botelho Faria
Assessing File Formats for Static Image Transmission ...............................................................................592
R. D. Lins, C.M. de Sá Rodrigues
A Software Development Framework Based on C++ OOP Language for Link-level
Simulation Tools..............................................................................................................................................597
C. H. M. de Lima, E. M. G. Stancanelli, E. B. Rodrigues, J. M. da S. Maciel, F. R. P. Cavalcanti
Conception and Evaluation of Access Selection Algorithms for Cooperative Beyond 3g
Systems.............................................................................................................................................................603
V. A. de Sousa, R. A. de O. Neto, F. de S. Chaves, A. P. da Silva, F. R. P. Cavalcanti
Multimodal Biometric Fusion — Joint Typist (keystroke) and Speaker Verification ..............................609
Jugurta R. Montalvao Filho, Eduardo O. Freire
Access Selection with Connection Reallocation for Multi-access Networks...............................................615
V. A. de Sousa, R. A. de O. Neto, F. de S. Chaves, L. S. Cardoso, F. R. P. Cavalcanti
Impact of Intelligent Access Selection Algorithms in Cooperative Wireless Networks ............................620
F. R. P. Cavalcanti, V. A. de Sousa, R. A. de O. Neto, F. de S. Chaves
Fault Tolerance in IEEE 802.11 WLANS .....................................................................................................626
F. E. de Deus, R. S. Puttini, L. F. Molinaro, H. Abdalla, G. Amvame-Nze, J. Kabara
Modelling and Analysis of Optical Packet Switched Networks in Mesh Topology ...................................632
L. H. Bonani, F. R. Barbosa, E. Moschim
Adaptive Routing and Wavelength Assignment with Power Constraints Using Ant Colony
Optimization ....................................................................................................................................................637
G. S. Pavani, H. Waldman
Low Cost Eye Diagram Reconstruction and Morphological Analysis for Optical Network
Performance Monitoring Using Digital Signal Processing Techniques......................................................643
E. Mobilon, M. R. X. de Barros, A. Lopes
Quantum Noisy Channel Modeled by Canonical Unitary Operation in Two Qubits ...............................647
W. A. de Brito, R. V. Ramos
HMM Topology in Continuous Speech Recognition ....................................................................................651
Glauco F. G. Yared, Fabio Violaro, Antonio Marcos Selmini
Power and Bit Allocation for Link Adaptation in MIMO-OFDM Wireless Systems ...............................657
D. Zanatta, F. C. Cavalcante, C. C. Cavalcante
Performance Evaluation of Access Selection Algorithms for VOIP on Wireless Multiaccess Networks...............................................................................................................................................663
A. P. da Silva, F. de S. Chaves, V. A. de Sousa Jr., R. A. de O. Neto, F. R. P. Cavalcanti
Quantum Key Distribution with Error Rejecting Protocol: Optical Setup and Security
Analysis ............................................................................................................................................................668
J. C. Nascimento, F. A. Mendonça, É. C. Giraudo, R. V. Ramos
Adding Diversity to Multi-user Downlink Beamforming by Using BER Constraints ..............................672
D. Z. Filho, L. Fety, J. M. T. Romano
Optimum Detector to Non-orthogonal PAM Signals with Spectral Overlapping .....................................678
A. M. P. de Lucena, J. C. M. Mota, C. C. Cavalcante
Outer-loop Power Control Based on Hybrid ARQ Protocol for WEDMA Enhanced Uplink .................682
C. H. M. de Lima, K. Larsson, P. Okvist
WIMAX Simulation Models for Return Channel in Digital Television Systems.......................................688
A. K. Budri, J. V. Gonçalves, L. G. P. Meloni
A New Algorithm for Finding the Shannon Cover of Shifts of Finite Type...............................................694
D. P. B. Chaves, C. Pimentel
Genetic Algorithm for Amplifiers Gain Optimization in All-optical Networks ........................................700
C. J. A. Bastos-Filho, D. A. R. Chaves, H. A. Pereira, J. F. Martins-Filho
Quality of Service Evaluation of VoIP Over HSDPA ..................................................................................706
L. R. N. Sousa, M. L. Carvalho, E. B. Rodrigues, L. Sampaio, F. R. P. Cavalcanti
Experimental Implementation of B92 Quantum Key Distribution Protocol .............................................712
F. A. Mendonça, D. B. de Brito, J. B. R. Silva, G. A. P. Thé, R. V. Ramos
Pause Insertion Based on a Morphosyntactic Parser for Brazilian Portuguese Text-tospeech Systems.................................................................................................................................................718
I. C. Seara, S. G. Kafka, R. Seara, S. Klein, F. S. Pacheco, R. Seara
On the Adoption of WLAN for Capacity Improvement of 3G Networks Using the Multiaccess Framework ...........................................................................................................................................723
L. S. Cardoso, V. A. de Sousa, J. F. Pimentel, F. R. P. Cavalcanti
Hardware Architecture for Optical Packet and Burst Switching Applications ........................................728
E. Mobilon, M. R. Salvador, R. Bernardo, L. R. Monte, V. G. Oliveira, Leonardo Pezzolo, Mateus M.
Pereira, A. D. Coral, M. Fernanda M. B. B. F. Oliveira, A. Paradisi, F. Damiani, P. J. Tatsch, M.
Mosso, H. J. P. P. da Silva
Accelerating the Convergence of the Widely Linear LMS Algorithm for Channel
Equalization.....................................................................................................................................................734
F. J. A. de Aquino, C. A. F. da Rocha, L. S. Resende
Ultrashort Pulse Reflection Through Nonlinear Fiber Bragg Gratings .....................................................739
A. F. de Morais Neto, C. S. Sobrinho, A. F. G. Furtado Filho, J. W. M. Menezes, A. S. B. Sombra
Adaptive Equalization Based on Watermarking..........................................................................................743
M. U. Neto, L. de C. T. Gomes, J. M. T. Romano, M. Bonnet
Hierarchical Multiscale Image Segmentation...............................................................................................749
K. S. Silva, G. G. Lima, F. N. S. Medeiros
Soliton Optical Gates with Asymmetric Planar Dual-core Nonlinear Directional Fiber
Coupler (DNLDC)...........................................................................................................................................754
W. B. Fraga, J. W. M. Menezes, A. F. G. Furtado Filho, J. C. Sales, M. G. da Silva, A. S. B. Sombra
Soft-decision Demodulation of Wavelet-coded Psk Signals Over Flat Rayleigh Fading
Channels...........................................................................................................................................................758
L. G. de Q. Silveira J´unior, L. F. Q. Silveira, F. M. Assis, E. L. Pinto
Trilinear Space-time-frequency Codes for Broadband MIMO-OFDM Systems ......................................764
A. L. F. de Almeida, G. Favier, J. C. M. Mota
Parafac-based Blind Channel Identification Using 4th-order Cumulants .................................................771
C. E. R. Fernandes, G. Favier, J. C. M. Mota
Modified Interpolation of LSFS Based on Optimization of Distortion Measures .....................................777
Carlos R. Ferreira, Abraham Alcaim, Rodrigo C. de Lamare
Blind Channel Shortening for SIMO Space-time Channels Using Linear Prediction in
OFDM Systems................................................................................................................................................783
A. S. Menezesy, C. M. Panazioz, J. M. T. Romanoy
Correlating Multiple Redundant Scales for Corner Detection ...................................................................789
I. C. de Paula, F. N. S. Medeiros, G. A. Mendonca, C. J. P. Passarinho, I. N. S. Oliveira
Spectral Subtraction for Reverberation Reduction Applied to Automatic Speech
Recognition ......................................................................................................................................................795
F. S. Pacheco, R. Seara
Advanced Downlink Receivers for GERAN .................................................................................................801
V. Bril, P. S. R. Diniz, R. D. Vieira
Blind Adaptive Space-time Block-coded Receivers for DS-CDMA Systems in Multipath
Channels Based on the Constant Modulus Criterion...................................................................................807
Rodrigo C. de Lamare, Raimundo Sampaio-Neto
MANETS for Environmental Monitoring.....................................................................................................813
A. Vasiliou, A.A. Economides
A Statistical Model for the Warp Matrix in Super-resolution Video Reconstruction...............................819
Guilherme H. Costa, Jose C. M. Bermudez
Matching Extensions of Cyclic Groups .........................................................................................................825
Jorge Pedraza Arpasi
Performance Evaluation of Supervised Parafac Receivers for CDMA Systems .......................................829
R. L. de Lacerda Neto, A. L. F. de Almeida, G. Favier, J. C. M. Mota, M. Debbah
Voice Over IP Quality of Service Using Active Queue Management .........................................................835
Vitalio Alfonso Reguera, Félix F. Álvarez Paliza, Evelio M. García Fernández, Walter Godoy Jr.
Lattices from Subfields of Q(en) ....................................................................................................................841
Antonio Aparecido de Andrade, Carina Alves, Tatiana Bertoldi Carlos
Adaptive Decision on the Priority of Horizontal Or Vertical Direction for the SA-DCT.........................844
Flavia Magalhaes Freitas, Abraham Alcaim
Using Split Processing to Improve the Performance of Space-time OFDM Over Digital TV
Channels...........................................................................................................................................................850
Joao Luiz Rebelatto, Richard Demo Souza, Leonardo Silva Resende, Maurice G. Bellanger
A Fuzzy Algorithm to Solve the Problem of QOS Unicast Routing in IP Networks .................................856
Raulison A. Resende, Antonio C. Lavelha, Akebo Yamakami, Ivanil S. Bonatti
Impact of Spatial Correlation on Adaptive Coded Modulation Performance in Rayleigh
Fading...............................................................................................................................................................862
Bengt Holter, Geir E. Øien
Assessing Algorithms to Remove Back-to-front Interference in Documents .............................................868
R. D. Lins, J. M. M. da Silva
Energy Efficiency Improved Game-theoretic Distributed Power Control Algorithm for
Best Effort Services in Wireless Communications Systems.........................................................................874
F. de S. Chaves, R. A. de Oliveira Neto, F. R. P. Cavalcanti
8-channel Dynamic Optical Power Equalizer for WDM Networks ............................................................880
Amauri Mocki Jr., Tiago M. do Amaral, Alexandre A. P. Pohl
Set-membership Adaptive Algorithms Based on Time-varying Error Bounds and Their
Application to Interference Suppression.......................................................................................................884
Rodrigo C. de Lamare, Paulo S. R. Diniz
ICT Investments As Real Options Under Competition Threat...................................................................889
G. N. Angelou, A. A. Economides
Zero-error Capacity of Quantum Channels and Noiseless Subsystems .....................................................895
Rex A C Medeiros, Romain Alleaume, Gerard Cohen, Francisco M de Assis
A Mathematical Framework to Describe Interpolated Adaptive Volterra Filters....................................901
Eduardo L. O. Batista, Orlando J. Tobias, Rui Seara
Stochastic Modeling of the Transform-domain ELMS Algorithm for Correlated Gaussian
Data ..................................................................................................................................................................907
Elen M. Lobato, Orlando J. Tobias, Rui Seara
Stochastic Model for the NSAF Algorithm Considering Slow Adaptation and Gaussian
Data ..................................................................................................................................................................913
Javier E. Kolodziej, Orlando J. Tobias, Rui Seara
Second-order Statistics for the Envelope and Phase of N-µ Generalized Fading Channels .....................918
Daniel Benevides da Costa, Michel Daoud Yacoub, Gustavo Fraidenraich
Stochastic Analysis of the Modified DNLMS Algorithm for Gaussian Data .............................................924
Javier E. Kolodziej, Orlando J. Tobias, Rui Seara
Natural Click Processing Through Wavelet Analysis and Extrapolation for Speech
Enhancement ...................................................................................................................................................930
Monique V. Nicodem, Rui Seara
Crossing Rates and Fade Durations of Multibranch Diversity Over Correlated Rayleigh
Channels...........................................................................................................................................................936
Jose Candido Silveira Santos Filho, Michel Daoud Yacoub
Binary Constrained Letter-by-letter Homophonic Coding .........................................................................940
V. C. da Rocha Jr., D. P. B. A. Camara, C. Pimentel
Throughput Guarantees for Opportunistic Scheduling Algorithms: a Comparative Study ....................946
Vegard Hassel, Geir E. Øien, David Gesbert
5-ary Turbo Codes with 4-5-PSK Modulation..............................................................................................952
Jose da Silva Barros, Renato Baldini Filho
Custom Error Control Schemes for Energy Efficient Bluetooth Sensor Networks ..................................956
João H. Kleinschmidt, Walter C. Borelli, Marcelo E. Pellenz
Interference Evaluation in CDMA Ad Hoc Networks .................................................................................962
R. P. Ramos, M. Geandre Rˆego, Tarciana Lopes, R. Baldini Filho, C. de Almeida
4MORE System Level Performance..............................................................................................................966
J. Rodriguez, V. Monteiro, A. Gameiro, R. Legouable, N. Ibrahim, M. Shateri
Blind Adaptive and Iterative Interference Cancellation Receiver Structures Based on the
Constant Modulus Criterion in Multipath Channels...................................................................................972
Rodrigo C. de Lamare, Tiago T. V. Vinhoza, Raimundo Sampaio-Neto
Comparative Analysis of Objective Distortion Measures for Speech Signals Degraded by
Noise .................................................................................................................................................................978
Jozué Vieira Filho, Giovani César de Faria
Eigensequences for Multiuser Communication Over the Real Adder Channel ........................................984
R. M. Campello de Souza, H. M. de Oliveira
Quasi-synchronous CDMA System Using Spreading Sequences with Zero-correlation Zone.................990
Tarciana Lopes, R. Ramos, M. Geandre Rego, R. Baldini
The Capacity of Binders for MIMO Digital Subscriber Lines....................................................................994
D. Zanatta Filho, R. R. Lopes, R. Ferrari, M. B. Loiola, R. Suyama, G. C. C. P. Simoes, C. Wada, J.
M. T. Romano, B. Dortschy, J. Rius i Riu
Multi-pump Discrete Raman Amplifier for CWDM System in the O-band............................................1000
L. A. M. Saito, P. D. Taveira, P. B. Gaarde, K. De Souza, E. A. De Souza
A New Framework to Provide Quality of Service in MPLS Network ......................................................1005
Augusto Foronda, Leandro C. Pykosz, Chikara Ohta, Masahiko Yoshimoto
A Bounded-Q Fast Filter Bank for Audio Signal Analysis........................................................................1010
Filipe C. C. B. Diniz, Iuri Kothe, Luiz W. P. Biscainho, Sergio L. Netto
Analysis of the Truncation Biasing for Importance Sampling Simulation of Encoded
Systems...........................................................................................................................................................1015
Edmar C. Gurjão, Bruno B. Albert, Francisco M. de Assis
Enhanced Opportunistic Beamforming for Jakes-correlated Fading Channels .....................................1019
Iuri R. Baran, Bartolomeu F. Uchoa-Filho
Author Index