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|Title:||CAM-MAC: A cooperative asynchronous multi-channel MAC protocol for ad hoc networks||Authors:||Luo, T.
|Issue Date:||2006||Citation:||Luo, T.,Motani, M.,Srinivasan, V. (2006). CAM-MAC: A cooperative asynchronous multi-channel MAC protocol for ad hoc networks. 2006 3rd International Conference on Broadband Communications, Networks and Systems, BROADNETS 2006 : -. ScholarBank@NUS Repository. https://doi.org/10.1109/BROADNETS.2006.4374373||Abstract:||Medium access control (MAC) protocols have been studied under different contexts for several years now. In all these MAC protocols, nodes make independent decisions on when to transmit a packet and when to back-off from transmission. In this paper, we introduce the notion of node cooperation into MAC protocols. Cooperation adds a new degree of freedom which has not been explored before. Specifically we study the design of cooperative MAC protocols in an environment where each node is equipped with a single transceiver and has multiple channels to choose from. Nodes cooperate by helping each other select a free channel to use. We show that this simple idea of cooperation has several qualitative and quantitative advantages. Our cooperative asynchronous multi-channel MAC protocol (CAM-MAC) is extremely simple to implement and, unlike other multi-channel MAC protocols, is naturally asynchronous. We conduct extensive simulation experiments. We first compare CAM-MAC with IEEE 802.11b and a version of CAM-MAC with the cooperation element removed. We use this to show the value of cooperation. Our results show significant improvement in terms of number of collisions and throughput for CAM-MAC. We also compare our protocol with MMAC and SSCH and show that CAM-MAC significantly outperforms both of them. © 2006 IEEE.||Source Title:||2006 3rd International Conference on Broadband Communications, Networks and Systems, BROADNETS 2006||URI:||http://scholarbank.nus.edu.sg/handle/10635/69547||ISBN:||1424404258||DOI:||10.1109/BROADNETS.2006.4374373|
|Appears in Collections:||Staff Publications|
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