MAC Protocol for Cooperative MIMO Transmissions in Asynchronous Wireless Sensor Networks

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 mu...

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Bibliographic Details
Published in2008 International Symposium on Communications and Information Technologies pp. 580 - 585
Main Authors Ahmad, M.R., Dutkiewicz, E., Xiaojing Huang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2008
Subjects
Access protocols
Array signal processing
beamforming
Clocks
cooperative transmissions
Delay
Energy consumption
imperfect synchronisation
Jitter
MAC protocols
Media Access Protocol
MIMO
spatial multiplexing
Wireless application protocol
Wireless sensor networks
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Summary: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 0.6 Tb.
ISBN:9781424423354
142442335X
DOI:10.1109/ISCIT.2008.4700258