A New Multiple Access Protocol Based on the Active State of Neighboring Nodes for Mobile Ad Hoc Networks

For the shared channel in wireless ad hoc networks, the MAC access protocol with delayed backoff window scheme is commonly adopted. This paper presents a new multiple protocol based on the active state of neighboring nodes (BASNN) for mobile ad hoc networks. If a source node has a packet to send, and the number of the active neighbors is n in the T cycle, then the source node sends a RTS (request-to-send) packet with probability Min{ a/(n+1),1} or backoff with probability 1-Min{a/(n+1),1}. It is shown by analysis and simulation that, based on the new protocol, the throughput performance of the networks is significantly increased.