Mobility-location aided transmission aware MAC enhancements for ad hoc networks

High user mobility in an ad hoc network causes frequent link breaks when a pair of communicating nodes moves out of transmission range of each other. This causes several unnecessary retransmissions between them at MAC layer unless the link is declared dead. Such retransmissions result in inefficient network resource utilization and bad QoS support. This paper proposes three enhancements for a MAC layer protocol with associated changes at network layer routing protocol. Enhancements suggested, use current ongoing transmission information contained in handshake packets, used for data transmission at MAC, piggybacked with transmitting node´s mobility-location information. A higher overall performance is achieved with suggested implementation of routing protocol over MAC layer protocol in terms of throughput, power utilization and better QoS