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In order to improve cross-layer optimization, we propose a multiple access collision avoidance protocol that combines RTS/CTS with scheduling algorithms to support the multicast routing protocol. We avoid collision by including additional information in the RTS. The proposed scheme, together with extra benefits, such as power saving, reliable data transmission and higher channel utilization compared with CSMA or multiple unicast, enables the support of multicast services in mobile ad hoc networks.
Date of Publication: Oct. 2003