Title

Design and Analysis of a Cooperative Medium Access Scheme for Wireless Mesh Networks

Publication Type

Conference Proceeding Article

Publication Date

9-2004

Abstract

This paper presents the detailed design and performance analysis of MACA-P, a RTS/CTS based MAC protocol, that enables simultaneous transmissions in wireless mesh networks. The IEEE 802.11 DCF MAC prohibits any parallel transmission in the neighborhood of either a sender or a receiver (of an ongoing transmission). MACA-P is a set of enhancements to the 802.11 MAC that allows parallel transmissions in situations when two neighboring nodes are either both receivers or transmitters, but a receiver and a transmitter are not neighbors. The performance of MACA-P in terms of system throughput is obtained through a simulation of the protocol using ns and is compared with the 802,11 RTS/CTS MAC. Experiments with the base MACA-P protocol reveal the need for certain enhancements, especially to avoid the drawbacks associated with attempts at parallel transmissions in scenarios where such parallelism is not feasible. Studies with the enhanced MACA-P protocol also demonstrate how significant performance gains in wireless mesh network performance may be realized if the radio transceiver behavior is modified in tandem with the MAC protocol.

Discipline

Software Engineering

Research Areas

Software Systems

Publication

BroadNets 2004: First International Conference on Broadband Networks: 25-29 October 2004

First Page

621

Last Page

631

ISBN

9780769522210

Identifier

10.1109/BROADNETS.2004.29

Publisher

IEEE

City or Country

San Jose, California, USA

Additional URL

http://dx.doi.org/10.1109/BROADNETS.2004.29

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