MAC protocol for cooperative MIMO transmissions in asynchronous wireless sensor networks

Ahmad, Mohd Riduan and Dutkiewicz, Eryk and Huang, Xiaojing (2008) MAC protocol for cooperative MIMO transmissions in asynchronous wireless sensor networks. In: 2008 International Symposium on Communications and Information Technologies, ISCIT 2008, 21-23 October 2008, Vientiane, Laos.

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Abstract

Cooperative MIMO schemes can reduce both transmission energy and latency in distributed wireless sensor networks (WSNs). In this paper we develop a new Cooperative low power listening (LPL) Medium Access Control (MAC) protocol for two cooperative MIMO schemes: Optimal Beamforming (BF) and Spatial Multiplexing (SM). We develop analytical models for the total energy consumption and packet latency for both schemes and analyse the proposed MAC protocol in term of the total energy consumption and packet latency with imperfect synchronisation due to clock jitter. The impact of the clock jitter, the check interval and the number of cooperative nodes on the total energy consumption and latency are investigated. We observe that the Cooperative LPL MAC with Optimal BF is the most promising configuration and it is optimal when then number of co-operating nodes M=2 and jitter difference is below 0.6Tb.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Electronics and Computer Engineering > Department of Computer Engineering
Depositing User: En. Mohd Riduan Ahmad
Date Deposited: 11 Jul 2012 00:07
Last Modified: 28 May 2015 02:37
URI: http://eprints.utem.edu.my/id/eprint/3827
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