Access Networks: 4th International Conference, AccessNets 2009, Hong Kong, China, November 1-3, 2009, Revised Selected Papers (Lecture Notes of the Institute ... and Telecommunications Engineering, 37)

This book constitutes the thoroughly refereed post-conference proceedings of the Fourth International Conference on Access Networks, AccessNets 2009, held in Hong Kong, China, in November 2009. The 11 revised full papers presented together with 8 invited papers were carefully reviewed and selected. The papers present original and fundamental research advances in the area of access networks, such as hybrid dynamic bandwidth and wavelength allocation algorithm, diversified applications in EPON, unsolicited grant services (UGS), mobile WiMAX network, FiWi networks, integrated PON-WiMAX networks, cognitive radio networks, efficient and dynamic spectrum sharing, cross-layer routing method for SCTP, and vectored DSL. Cover......Page 1 Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering 37......Page 2 Access Networks......Page 3 ISBN-13 9783642116636......Page 4 Preface......Page 5 Organization......Page 7 ACCESSNETS 2009......Page 11 Introduction......Page 14 Related Work in WDM-TDM PONs......Page 16 DyWaS-SLA Algorithm......Page 18 Simulation Scenario......Page 19 Simulation Results......Page 20 Conclusions......Page 24 References......Page 25 Introduction......Page 27 Related Works......Page 28 Application Utility......Page 29 Estimating QoS Metric of Queues......Page 30 Utility Max-Min Fair Bandwidth Allocation......Page 32 Simulation Results and Analysis......Page 33 References......Page 36 Introduction......Page 38 Related Work......Page 40 Probabilities of Successful RTS Receptions and RTS/CTS Handshakes......Page 41 RcvAssist Protocol......Page 44 Performance of RcvAssist......Page 46 Conclusion......Page 50 References......Page 51 Introduction......Page 53 Related Work......Page 54 Assumptions and Parameter Explanation......Page 55 Algorithm Description......Page 56 Performance Evaluation and Examples......Page 57 Throughput, Mean Delay, Mean Delay Jitter, and Number of Bursts......Page 58 Dynamic Connections......Page 61 Deadline Less Than the Period......Page 63 References......Page 64 Introduction......Page 65 Selection of Characteristics of Mobile WiMAX System......Page 66 Selection of Characteristics of Business Case......Page 68 Overview......Page 69 Shadowing, Fade and Interference Margin......Page 71 Coverage Range Results......Page 72 Determining the Optimal Rollout Area......Page 73 Detailed Analysis for a 5-Year Rollout......Page 74 Results......Page 76 Conclusions......Page 77 References......Page 78 Introduction......Page 80 Previous Works......Page 81 Background - Superposition Coded Multicast......Page 82 Background - Hierarchical/Superposition Coded Modulation......Page 84 Performance Metric - Total Received Bitstreams......Page 85 B. Variables - Energy Allocation Ratio and Modulation Scheme......Page 86 The Proposed Optimization Framework......Page 87 Experimental Results......Page 89 References......Page 91 Introduction......Page 93 BCP......Page 94 BCC......Page 95 Simulation......Page 97 Conclusions......Page 98 References......Page 99 Appendix......Page 100 Introduction......Page 102 Motivation Example......Page 105 Problem Description......Page 106 Data Structure and Packet Scheduling Algorithm......Page 108 Performance Evaluation......Page 110 Simulation Results......Page 111 References......Page 114 Introduction......Page 116 Related Works......Page 118 System Model......Page 119 BUA-RA Schemes......Page 120 Multi-user LP Scheme (CT_LP)......Page 121 Single-User LP Scheme (H_CT_LP)......Page 124 Single-User Heuristic Scheme (H_CT)......Page 125 Simulation Results......Page 126 Total Time Slots Usage......Page 128 Percentage of Unassociated Users......Page 130 Conclusion......Page 132 References......Page 133 Introduction......Page 134 Future Regional Networks......Page 135 Requirements of a Regional Network......Page 137 Regional Network Configuration......Page 139 Multi-service and Multi-access Implementation Methods......Page 141 Secure Communication Function......Page 142 Support for Context-Aware Services......Page 143 Conclusions......Page 144 References......Page 145 Introduction......Page 146 Network Model......Page 147 Spectrum Sensing Technique and Cooperative Detection......Page 148 Proposed Protocol......Page 150 Problem Formulation......Page 151 Optimal Policy......Page 155 Myopic Policy......Page 156 Numerical and Simulation Results......Page 157 Conclusion......Page 160 References......Page 161 Introduction......Page 162 Power Control and Bi-directionality......Page 164 Static Node Location with a Centralized Server......Page 165 Interference Model......Page 166 Constraints......Page 167 Problem Formulation......Page 168 Discrete Power Level......Page 169 Scenario I: Homogeneous Node Location......Page 170 Scenario II: Heterogeneous Node Location......Page 172 References......Page 175 Introduction......Page 177 System Model and Problem Formulation......Page 179 Downlink Spectrum Sharing in Overlay Mode......Page 180 Proposed Dynamic Spectrum Sharing Schemes......Page 182 A Scheme Based on Local Measurements of FBS......Page 184 A Scheme Based on Measurements of FBS and Its Users......Page 185 Numerical Results......Page 187 References......Page 190 Introduction......Page 192 Stream Control Transmission Protocol: SCTP......Page 193 Mobility Support in IPv6: Mobile IPv6......Page 194 Extension on the Binding Data Structure......Page 196 Cross-Layer Route Method in SCTP with MIPv6......Page 197 Simulation......Page 199 Conclusion and Future Work......Page 203 References......Page 204 Introduction......Page 205 Crosstalk Precoding......Page 207 Precoder Training......Page 208 Challenge: Limited Feedback Bandwidth......Page 210 Solution: Error Subsampling......Page 211 Challenge: Slow Convergence Speed......Page 212 Solution: Error Scaling......Page 213 Conclusions......Page 215 References......Page 216 Introduction......Page 217 OFDMA Uplink System Model......Page 219 Multiple CFO in the OFDMA Uplink......Page 221 Interference Cancellation Algorithm......Page 222 Simulation Results and Discussion......Page 226 Reference......Page 230 Introduction......Page 232 System Model......Page 233 Upper Bound of the TWRC Capacity......Page 234 Approaching the Upper Bound in Low SNR Region......Page 235 Approaching the Upper Bound in High SNR Region......Page 238 Conclusion......Page 242 References......Page 243 Introduction......Page 245 Overview......Page 246 Overview of Video Detection System......Page 247 Matching Processes of Traffic Patterns......Page 248 Problems Caused by Packet Delay Jitter......Page 249 Enhancement of Traffic Pattern......Page 250 Traffic Pattern Matching Using DP Matching......Page 251 Overview of the Experiment......Page 253 Evaluation #3: Verification of the Influence of Background Traffic......Page 255 References......Page 259 Introduction......Page 261 System Model......Page 263 Limited Feedback Scheme......Page 264 Transmit Precoding Design......Page 265 Expected RxSNR of MBS Users Given CSIT......Page 266 Optimization Solution for MBS Precoder Design......Page 267 Performance Analysis......Page 269 Threshold-Based Feedback Reduction Scheme......Page 270 Performance Involving Feedback from All MBS Users......Page 272 References......Page 274 Appendix......Page 276 Introduction......Page 277 Overview of Codebook-Based Precoding......Page 278 Precoding Methods for SC-FDMA Uplink......Page 280 PAPR of SC-FDMA in Quasistatic Flat Fading Channels......Page 282 System Parameters and BER Simulation Results......Page 284 References......Page 287 Author Index......Page 289 With the rapid growth of the Internet as well as the increasing demand for broadband services, access networks have been receiving growing investments in recent years. This has led to a massive network deployment with the goal of eliminating the ba- width bottleneck between end-users and the network core. Today many diverse te- nologies are being used to provide broadband access to end users. The architecture and performance of the access segment (local loop, wired and wireless access n- works, and even home networks) are getting increasing attention for ensuring quality of service of diverse broadband applications. Moreover, most access lines will no longer terminate on a single device, thus leading to the necessity of having a home network designed for applications that transcend simple Internet access sharing among multiple personal computers and enable multimedia support. Therefore, the access network and its home portion have become a hot investment pool from both a fin- cial as well as a research perspective. The aim of the annual International Conference on Access Networks (AccessNets) is to provide a forum that brings together scientists and researchers from academia as well as managers and engineers from the industry and government organizations to meet and exchange ideas and recent work on all aspects of access networks and how they integrate with their in-home counterparts. After Athens in 2006, Ottawa in 2007, and Las Vegas in 2008, this year AccessNets moved to Asia for the first time.