An efficient MAC protocol for cooperative diversity in mobile ad hoc networks

被引：7

作者：

Islam, Md. Rajibul ^{[1
]}

Hamouda, Walaa ^{[1
]}

机构：

[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada

来源：

WIRELESS COMMUNICATIONS & MOBILE COMPUTING | 2008年 / 8卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ad hoc networks; medium access control; cooperative diversity;

D O I：

10.1002/wcm.525

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Cooperative diversity is proposed to combat the detrimental effects of channel fading. In this paper, we investigate the effectiveness of cooperative diversity in interference limited ad hoc networks. The negative effects due to relay blocking on the network throughput are investigated. We show that the relay blocking problem is mainly dependent on the relay selection criterion. To overcome this problem, we propose a new cooperative diversity technique based on a modified IEEE 802.11 Medium Access Control (MAC) protocol. The throughput performance of the proposed MAC protocol is analyzed using a random structured network where nodes are assumed to be equipped with multiple antennas. In our simulations, we consider both single- and rnultiple-relay scenarios over fading channels. Copyright (C) 2007 John Wiley & Sons, Ltd.

引用

页码：771 / 782

页数：12

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