A cooperative CDMA-based multi-channel MAC protocol for ad hoc networks

Authors:
Yuhan Moon;Violet R. Syrotiuk
Affiliations:
Department of Computer Science and Engineering, Arizona State University, Tempe, Arizona;Department of Computer Science and Engineering, Arizona State University, Tempe, Arizona
Venue:
ADHOC-NOW'07 Proceedings of the 6th international conference on Ad-hoc, mobile and wireless networks
Year:
2007

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Abstract

In this paper we present CCM-MAC, a cooperative CDMA-based multi-channel medium access control (MAC) protocol for multihop wireless networks. The protocol mitigates the multi-channel hidden and exposed terminal problems through cooperation from overhearing neighbours. By accounting for the multiple access interference obtained through cooperation, it also addresses the near-far problem of CDMA. We provide an analysis of the maximum throughput of CCM-MAC and validate it through simulation in Matlab. A significant improvement in network throughput is achieved over IEEE 802.11 and another multichannel MAC protocol.