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The term MANET describes distributed, mobile, wireless, multihop networks that operate without the benefit of any existing infrastructure. When several nodes are participating in the mobile ad hoc network collision of packets may happen and sending the time bounded packets to the destination node is difficult. Different nodes can use the same bandwidth simultaneously as long as they are sufficiently separated and do not interfere with each other. In this paper we are employing real time MAC (RT MAC) for data transmission between mobile terminals and support real time traffic, such as streamed voice or video, which has a more demanding quality-of-service (QoS) requirement and often requires bandwidth reservation. It uses a Bayesian algorithm to calculate contention probabilities and enable faster convergence of the reservation procedure. The Real Time MAC is free of the "hidden terminal" problem, and is designed such that reservations can be made quickly and efficiently with negligible probability of conflict. It is fully- distributed and parallel and a reservation is made through a localized conversation between nodes in a 2-hop neighborhood, and scalable.
Date of Conference: 3-5 April 2009