Enabling cooperation in mobile ad hoc networks

Authors:
Santosh Kulkarni;Pratap S. Prasad;Prathima Agrawal
Affiliations:
Computer Science and Software Engineering, Auburn University, Auburn, AL;Electrical and Computer Engineering, Auburn University, Auburn, AL;Electrical and Computer Engineering, Auburn University, Auburn, AL
Venue:
SARNOFF'09 Proceedings of the 32nd international conference on Sarnoff symposium
Year:
2009

Citing 3
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Abstract

Spatial diversity achieved via nodal cooperation is known to alleviate the ill effects of channel fading in wireless networks. But to exploit this phenomenon the idea of node cooperation needs to be extended to other layers of the protocol stack, especially the MAC layer. This paper takes a close look at Synergy MAC, a cooperative MAC protocol, proposed for wireless mobile ad hoc networks. The studied protocol also leverages on the multi-rate capability of 802.11b to allow nodes with low SNR to their destination make use of intermediate relays, to transmit data at rates higher than otherwise possible. The performance improvement achieved by this protocol in comparison to 802.11b is then evaluated through extensive simulations.