Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE最新文献_第7页

Migrating constrained optical tree in wireless WDM systems 无线WDM系统中迁移约束光树

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188546

Ko-Shung Chen, Chao-Ping Yu, N. Huang

{"title":"Migrating constrained optical tree in wireless WDM systems","authors":"Ko-Shung Chen, Chao-Ping Yu, N. Huang","doi":"10.1109/GLOCOM.2002.1188546","DOIUrl":"https://doi.org/10.1109/GLOCOM.2002.1188546","url":null,"abstract":"As WDM-based optical networks are becoming the right choice for the next-generation Internet networks to transport high-speed IP traffic, the leading role of wireless ATM (WATM) networks will be undoubtedly replaced with wireless WDM (WWDM) networks for providing high quality of services to mobile users. Meanwhile, multicasting has played an increasingly important role in many conventional and emerging applications, such as teleconferencing and distributed games. In this paper, a constrained optical tree migration scheme (COTMS) is proposed to support multicast services in WWDM networks. COTMS is an enhancement of our previous work, called CTMS, for adapting to the characteristic of WDM-based backbone networks. CTMS can properly deal with the constrained tree migration problem for generic wireless networks, and COTMS inherits the efficiencies of CTMS entirely. Simulation results show that COTMS can markedly reduce the resources used per multicast tree, thus achieving both low handoff-dropping/join-blocking rate and high resource utilization. More importantly, we demonstrate how COTMS incorporating crossover optical switch discovery can be used to support real-time traffic for heterogeneous (i.e., unicast and multicast) connections in a uniform and unified manner. The proposed scheme is also suitable for routing over fully mobile (ad hoc) networks in which multiple frequencies are used for data communications.","PeriodicalId":415837,"journal":{"name":"Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE","volume":"490 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134462898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An efficient heuristic for designing logical overlay networks for the reliable label switched paths in IP networks 一种有效的启发式方法设计IP网络中可靠标签交换路径的逻辑覆盖网络

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188999

S. Chamberland

引用次数: 0

Supporting mobile SSM sources for IPv6 支持IPv6移动SSM源

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188486

Christophe Jelger, Thomas Noël

{"title":"Supporting mobile SSM sources for IPv6","authors":"Christophe Jelger, Thomas Noël","doi":"10.1109/GLOCOM.2002.1188486","DOIUrl":"https://doi.org/10.1109/GLOCOM.2002.1188486","url":null,"abstract":"Mobile IPv6 (MIPv6), the IPv6 version of Mobile IP which is currently being developed by the Internet Engineering Task Force (IETF), is a protocol that describes how a mobile node can change its point of attachment to the Internet. While MIPv6 focuses on unicast communications, it also proposes two basic methods, known as bi-directional tunneling and remote subscription, to handle multicast communications with mobile nodes. In the mean time, the deployment of Source-Specific Multicast (SSM) is of great consideration, mainly for scalability reasons as it is a strong candidate that could be used to support inter-domain multicast routing. In the particular case of mobile IPv6 SSM sources, the mechanisms proposed in MIPv6 to support multicast communications introduce a number of problems that strongly degrade the SSM routing mode of operation. The intend of this document is to describe protocol enhancements that can be used to solve the problems introduced by mobile SSM sources when used with the current version of MIPv6. The extensions, mechanisms and mode of operation of the protocol proposed in this paper are denoted as MSSMSv6 (Mobile SSM Sources for IPv6).","PeriodicalId":415837,"journal":{"name":"Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115520208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 45

Performance analysis of an iterative group-wise parallel interference cancellation for multiuser detection of coherent W-CDMA system 相干W-CDMA系统多用户检测的迭代群并行干扰消除性能分析

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188133

J. Koo

{"title":"Performance analysis of an iterative group-wise parallel interference cancellation for multiuser detection of coherent W-CDMA system","authors":"J. Koo","doi":"10.1109/GLOCOM.2002.1188133","DOIUrl":"https://doi.org/10.1109/GLOCOM.2002.1188133","url":null,"abstract":"We present performance analysis of an iterative group-wise parallel interference cancellation (IGPIC) algorithm for coherent detection of an asynchronous wideband DS-CDMA system in a single cell over multipath Rayleigh fading channels. The proposed IGPIC algorithm can improve the existing serial interference cancellation (SIC) algorithm that significantly degrades the detection performance for stronger users compared to weaker users. It also improves the group-wise serial interference cancellation (GSIC) algorithm that suffers from severe degradation of detection performance as the number of users in a group increases. In the proposed algorithm, users in a system am divided into several groups and interfering signals are subtracted out from the received signal as many times as the number of users in a group, iteratively. The iterative group-wise interference cancellation (IGIC) algorithm is also classified into the iterative group-wise serial interference cancellation (IGSIC) and the IGPIC algorithm. The results show that the performance of the IGPIC algorithm is superior to that of the IGSIC algorithm by 4 dB, right before the final cancellation in a group for 10 users at BER=1.0/spl times/10/sup -2/.","PeriodicalId":415837,"journal":{"name":"Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115861770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Iterative encoding of low-density parity-check codes 低密度奇偶校验码的迭代编码

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188405

David Haley, A. Grant, John Buetefuer

引用次数: 45

Computing information rates of magnetic recording channels in the presence of medium noise 介质噪声条件下磁记录信道信息率的计算

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188417

D. Arnold, E. Eleftheriou

引用次数: 3

Utility-based joint physical-MAC layer optimization in OFDM OFDM中基于效用的物理层- mac层联合优化

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188163

Guocong Song, Ye Li

引用次数: 41

Unslotted optical CSMA/CA MAC protocol with fairness control in metro WDM ring networks 城域WDM环网中具有公平性控制的无槽光CSMA/CA MAC协议

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1189055

K. Kim, Hiroshi Okagawa, K. Shrikhande, L. Kazovsky

引用次数: 6

A novel highly-scalable matching policy for input-queued switches with multiclass traffic 一种新的高可扩展的多流量输入队列交换机匹配策略

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1189038

F. Chiussi, A. Francini, G. Galante, Emilio Leonardi

引用次数: 4

Bluetooth performance analysis under IEEE802.11 interference in a fading channel IEEE802.11衰落信道干扰下蓝牙性能分析

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE Pub Date : 2002-11-17 DOI: 10.1109/GLOCOM.2002.1188074

A. Conti, D. Dardari, G. Pasolini, O. Andrisano

引用次数: 0