用于多跳中继网络的随机接入协议

doi:10.13190/jbupt.200805.48.329

北京邮电大学学报 ›› 2008, Vol. 31 ›› Issue (5): 48-52.doi: 10.13190/jbupt.200805.48.329

用于多跳中继网络的随机接入协议

戴沁芸¹, 赵军2, 周平1, 戎璐1

1. 中科院上海微系统与信息技术研究所上海无线通信研究中心, 上海 200050; 2. 中国网络通信集团有限公司上海市分公司, 上海 200135

收稿日期:2008-01-02 修回日期:1900-01-01 出版日期:2008-10-30 发布日期:2008-10-30
通讯作者: 戴沁芸

A New Random Access Protocol in Multi-Hop Relay Wireless Networks

DAI Qin-yun1, ZHAO Jun2, ZHOU Ping1, RONG Lu1

1. Shanghai Research Center for Wireless Communications, Shanghai Institute of Microsystem and Information Technology (Chinese Academy of Sciences), Shanghai 200050, China;
2. Shanghai Branch, China Network Communications Group Corporation, Shanghai 200135, China

Received:2008-01-02 Revised:1900-01-01 Online:2008-10-30 Published:2008-10-30
Contact: DAI Qin-yun

摘要/Abstract

摘要：

提出时分多址方式下由固定中继节点支持的透明模式下的随机接入协议, 通过中继节点与用户间的合作重传来解决多个用户同时接入发生碰撞的问题. 协议的核心思想是从协议层角度利用网络资源通过选择性重传提供分集, 当数据分组发生碰撞时, 接收端能够利用已接收的数据信号恢复分组, 且不增加调度开销、不增设天线, 发生碰撞时的信道资源不再被浪费.仿真结果表明，该协议与以往研究相比, 网络的整体性能得到了明显改善.

关键词: 多跳中继网络, 移动通信系统, 时分多址, 随机接入协议, 选择性传输

Abstract:

A new random access protocol assisted by fixed relay stations under the transparent mode in multi-hop relay networks over the time division multiple access was presented. In the protocol, collision problems are resolved when many users attempted to send access requests simultaneously. The key idea is to obtain benefits of multi-antenna systems by cooperative retransmissions among relay stations and users when considering protocol layers. The receivers will recover the collision packets successfully, while channel resources will not be wasted without extra scheduling overhead and without additional antenna hardware. Simulations show that the network performance would be improved compared to those of previous literatures.

Key words: multi-hop relay networks, mobile communication systems, time division multiple access, random access protocol, opportunistic transmission

中图分类号:

TP393

戴沁芸1 , 赵军2, 周平1, 戎璐1

. 用于多跳中继网络的随机接入协议[J]. 北京邮电大学学报, 2008, 31(5): 48-52.

DAI Qin-yun1, ZHAO Jun2, ZHOU Ping1, RONG Lu1.

A New Random Access Protocol in Multi-Hop Relay Wireless Networks

[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2008, 31(5): 48-52.

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用于多跳中继网络的随机接入协议

A New Random Access Protocol in Multi-Hop Relay Wireless Networks

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