Welcometothe11thInternationalConferenceonTelecommunications(ICT2004)ho- ed by the city of Fortaleza (Brazil). As with other ICT events in the past, this professional meeting continues to be highly competitive and very well perceived by the international networking community, - tracting excellent contributions and active participation. This year, a total of 430 papers from 36 countries were submitted, from which 188 were accepted. Each paper was - viewed by several members of the ICT2004 Technical Program Committee. We were very pleased to receive a large percentage of top-quality contributions. Thetopicsofsubmittedpaperscoveredawidespectrumfromphotonictechniques,signal processing,cellularnetworks,andwirelessnetworks,toadhocnetworks.Webelievethe ICT2004papersofferawiderangeofsolutionstokeyproblemsintelecommunications, and describe challenging avenues for industrial research and development. In addition to the conference regular sessions, seven tutorials and a workshop were organized.Thetutorialsfocusedonspecialtopicsdealingwithnext-generationnetworks. The workshop focused on particular problems and solutions in heavily distributed and shareable environments. We would like to thank the ICT 2004 Technical Program Committee members and referees. Without their support, the creation of such a broad conference program would not be possible. We also thank all the authors who made a particular effort to contribute to ICT2004. We truly believe that due to all these efforts the ?nal conference program consisted of top-quality contributions. We are also indebted to many individuals and organizations that made this conference possible. In particular, we would like to thank the members of the ICT2004 Organizing Committee for their help in all aspects of the organization of this professional meeting.
Inhalt
Multimedia Services.- Enhancing 3G Cellular Systems with User Profiling Techniques for Multimedia Application QoS Adaptation.- Delivery of Streaming Video in Next-Generation Mobile Networks.- Use of the 2500-2690 MHz Band for Multimedia Broadcast Multicast Service.- Throughput Fairness and Capacity Improvement of Packet-Switched Networks Through Space-Time Scheduling.- Antennas.- Performance of MIMO Antenna Systems with Hybrids of Transmit Diversity and Spatial Multiplexing Using Soft-Output Decoding.- Simple Model to Determine the Gap Effect on the Input Impedance of a Cylindrical Dipole. Application to Standard Antennas.- An Interference Avoidance Technique for Ad Hoc Networks Employing Array Antennas.- Analysis of a Cylindrical Microstrip Antenna by the Nonorthogonal FDTD Method and Parallel Processing.- Transmission Technologies andWireless Networks.- Unified Analysis of the Local Scatters Channel Model.- Spacial Analysis of the Local Scatters Channel Model.- Propagation Prediction Based on Measurement at 5.8GHz for Fixed Wireless Access.- Dimensioning of Wireless Links Sharing Voice and Data.- Communication Theory (I).- An Iterative Matrix-Based Procedure for Finding the Shannon Cover for Constrained Sequences.- Truncated Importance Sampling Simulation Applied to a Turbo Coded Communication System.- Zero-Error Capacity of a Quantum Channel.- Communication Theory (II).- Communication System Recognition by Modulation Recognition.- An Extension to Quasi-orthogonal Sequences.- Trellis Code Construction for the 2-User Binary Adder Channel.- Rayleigh Fading Multiple Access Channel Without Channel State Information.- Communication Theory (III).- Adaptive Decision Feedback Multiuser Detectors with Recurrent Neural Networks for DS-CDMA in Fading Channels.- Comparison of two Filterbank Optimization Criteria for VDSL Transmission.- Phase Estimation and Phase Ambiguity Resolution by Message Passing.- An Expurgated Union Bound for Space-Time Code Systems.- Achieving Channel Capacity with Low Complexity RS-BTC Using QPSK over AWGN Channel.- Telecommunication Pricing and Billing.- Design of Sub-session Based Accounting System for Different Service Level of Mobile IP Roaming User.- Priority Telephony System with Pricing Alternatives.- Mobile Telephony Industry: Price Discrimination Strategies for Interconnected Networks.- Network Performance and Telecommunication Services.- A Novel ECN-Based Congestion Control and Avoidance Algorithm with Forecasting and Verifying.- Competitive Neural Networks for Fault Detection and Diagnosis in 3G Cellular Systems.- Performance Analysis of an Optical MAN Ring for Asynchronous Variable Length Packets.- Enabling Value-Generating Telecommunications Services upon Integrated Multiservice Networks.- Active Networks and Mobile Agents.- An Architecture for Publishing and Distributing Service Components in Active Networks.- Performance Comparison of Active Network-Based and Non Active Network-Based Single-Rate Multicast Congestion Control Protocols.- MAMI: Mobile Agent Based System for Mobile Internet.- Design and Implementation of an ANTS-Based Test Bed for Collecting Data in Active Framework.- Adaptive QoS Management for Regulation of Fairness Among Internet Applications.- Optical Photonic Technologies (I).- Black Box Model of Erbium-Doped Fiber Amplifiers in C and L Bands.- Optical Packet Switching Access Networks Using Time and Space Contention Resolution Schemes.- Full-Optical Spectrum Analyzer Design Using EIT Based Fabry-Perot Interferometer.- A Powerful Tool Based on Finite Element Method for Designing Photonic Crystal Devices.- Optical Photonic Technologies (II).- Analysis of Quantum Light Memory in Atomic Systems.- Wavelength Conversion with 2R-Regeneration by UL-SOA Induced Chirp Filtering.- Performance Analysis of Multidimensional PPM Codes for Optical CDMA Systems in the Presence of Noise.- Smart Strategies for Single-Photon Detection.- Optical Networks (I).- Inter-arrival Planning for Sub-graph Routing Protection in WDM Networks.- An Adaptive Routing Algorithm for Intelligent and Transparent Optical Networks.- Novel Wavelength Assignment Algorithm for Intelligent Optical Networks Based on Hops Counts and Relative Capacity Loss.- Ad Hoc Networks (I).- Assigning Codes in a Random Wireless Network.- Flexible QoS Routing Protocol for Mobile Ad Hoc Network.- Integrating Mobile Ad Hoc Network into Mobile IPv6 Network.- Network Architecture for Scalable Ad Hoc Networks.- Ad Hoc Networks (II).- Dual Code-Sensing Spread Spectrum Random Access (DCSSRA) Protocol for Ad Hoc Networks.- Exploiting the Small-World Effect to Increase Connectivity in Wireless Ad Hoc Networks.- Adaptive Resource Management in Mobile Wireless Cellular Networks.- Comparative Analysis of Ad Hoc Multi-path Update Techniques for Multimedia Applications.- Ad Hoc Networks (III).- PRDS: A Priority Based Route Discovery Strategy for Mobile Ad Hoc Networks.- Performance Evaluation of AODV Protocol over E-TDMA MAC Protocol for Wireless Ad Hoc Networks.- Mitigating the Hidden Terminal Problem and Improving Spatial Reuse in Wireless Ad Hoc Network.- A New Distributed Power Control Algorithm Based on a Simple Prediction Method.- Ad Hoc Networks (IV).- A Heuristic Approach to Energy Saving in Ad Hoc Networks.- Calculating the Maximum Throughput in Multihop Ad Hoc Networks.- Throughput of Distributed-MIMO Multi-stage Communication Networks over Ergodic Channels.- Delivering the Benefits of Directional Communications for Ad Hoc Networks Through an Efficient Directional MAC Protocol.- Signal Processing (I).- Synchronization Errors Resistant Detector for OFDM Systems.- The Discrete Cosine Transform over Prime Finite Fields.- A Lattice Version of the Multichannel Fast QRD Algorithm Based on A Posteriori Backward Errors.- New Blind Algorithms Based on Modified "Constant Modulus" Criteria for QAM Constellations.- Signal Processing (II).- Channel Estimation Methods for Space-Time Block Transmission in Frequency-Flat Channels.- Faster DTMF Decoding.- Adaptive Echo Cancellation for Packet-Based Networks.- The Genetic Code Revisited: Inner-to-Outer Map, 2D-Gray Map, and World-…