Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003最新文献_第5页

A new CDMA architecture based on complementary codes enabling isotropic MAI-free operation 一种新的基于互补码的CDMA体系结构，实现各向同性无mai操作

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214237

Hsiao-Hwa Chen

{"title":"A new CDMA architecture based on complementary codes enabling isotropic MAI-free operation","authors":"Hsiao-Hwa Chen","doi":"10.1109/ISCC.2003.1214237","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214237","url":null,"abstract":"Future wireless communication systems ought to offer a high spectral efficiency and an inherent flexibility to carry diverse services with variable rate requirements. The rate change should be made scalable, continuous and real-time based to match exactly to the required data rate for conservation of precious bandwidth. The rate change in multiples of two, as implemented in the existing 3G W-CDMA standard, is undesirable. It is also preferred that the multiple access technique itself should support asymmetrical traffic in up- and down-links to fit connection modes of the Internet services. This paper is a review of our recent research effort to propose an innovative CDMA architecture based on complete complementary codes, which can satisfy major requirements for the future mobile Internet applications. The architecture uses a new \"offset stacked\" spreading technique, based on which both high spectral efficiency and scalable rate-matching are guaranteed. To measure spectral efficiency of the systems, \"spreading efficiency\" (SE) is defined as the information bit(s) conveyed by each chip. All traditional CDMA-based standards offer an SE of 1/N, where N is the processing gain. On the contrary, the SE of the proposed architecture can be made as high as one. As the bandwidth of a CDMA system is determined by its chip width, a high SE means a high spectral efficiency. This paper illustrates that the proposed scheme is well-performing and has a great potential for applications in future wireless communications beyond 3G.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114310538","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: 3

Operation, management and performance issues of LAN technologies applied to WAN architecture 局域网技术应用于广域网架构的操作、管理和性能问题

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214306

Y. Wong, C. Y. Wong, L. Ngoh, L. Wong

引用次数: 6

A secure network access protocol (SNAP) 安全网络访问协议(SNAP)

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214217

A. F. A. Shahri, D. Smith, J. Irvine

引用次数: 3

The study of mobility-dependent resource reservation scheme in wireless multimedia networks 无线多媒体网络中基于移动性的资源预留方案研究

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214257

Jean-Lien C. Wu, Li-Liann Lu, C. Hu

引用次数: 4

Real-time transcoding and video distribution in IEEE 802.11b multicast networks IEEE 802.11b组播网络中的实时转码和视频分发

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214198

R. Asorey-Cacheda, F. González-Castaño

引用次数: 5

An architecture for integrating UMTS and 802.11 WLAN networks UMTS和802.11 WLAN网络的集成架构

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214202

M. Jaseemuddin

引用次数: 119

Heuristics for rerouting of label switched paths in MPLS based IP networks 基于MPLS的IP网络中标签交换路径重路由的启发式算法

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214240

M. Elhawary, M. El-Derini, Hussein H. Aly

引用次数: 3

Influence of adaptive RTS/CTS retransmissions on TCP in wireless and ad-hoc networks 无线和自组织网络中自适应RTS/CTS重传对TCP的影响

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214224

M. Günes, Marcel Hecker, Imed Bouazizi

{"title":"Influence of adaptive RTS/CTS retransmissions on TCP in wireless and ad-hoc networks","authors":"M. Günes, Marcel Hecker, Imed Bouazizi","doi":"10.1109/ISCC.2003.1214224","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214224","url":null,"abstract":"The trend of wireless networking is growing. This is due to the success of IEEE 802.11 WLAN technology, which allows the extension of local area networks by mobile stations and establishing of ad-hoc networks. The latter does not need any pre-installed infrastructure. Nodes communicate directly or the traffic is relayed over intermediate wireless nodes. While there are only few nodes the performance of the network is acceptable, but with increasing number of nodes their performance of the network decreases. If TCP is used additional performance degradation is expected. However, TCP is necessary since most applications and application level protocols are based on it. The poor performance of TCP in wireless networks has several reasons, especially the communication medium with high bit error rates (BER) and TCP's optimization on fixed networks. In this paper, we present an analysis of TCP's performance in wireless and ad-hoc networks. We emphasize the role of MAC layer retransmissions without breaking the end-to-end semantic of TCP. For this, we introduce the dynamic short retry limit, which allows the adaptation of RT-S/CTS retransmission.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127082308","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: 14

A load balancing scheme for congestion control in MPLS networks 一种用于MPLS网络拥塞控制的负载分担方案

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214239

E. Salvadori, R. Battiti

引用次数: 16

Provisioning algorithms in survivable optical networks with shared protection 具有共享保护的可生存光网络中的供应算法

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214194

C. Assi, A. Khalil, N. Ghani, Mohamed A. Ali

引用次数: 1