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

doi:10.13190/jbupt.200805.48.329

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2008, Vol. 31 ›› Issue (5): 48-52.doi: 10.13190/jbupt.200805.48.329

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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

Abstract

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

CLC Number:

TP393

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

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