Delay-oriented routing protocol for wireless ad hoc networks

In wireless ad hoc mobile network, a host desires to communicate with anoth er host may need some intermediate nodes to relay data packets. To maximize the channel resource utilization and minimize the network transfer delay a long the path, the shortest path with minimum hops approach is often adapte d. However, by considering the employing medium access control (MAC) protoc ol, the minimum transfer delay from source to destination may be achieved b y choosing a longer path but with less contention delay, In this paper, we will propose an efficient delay-oriented routing protocol for mobile ad hoc wireless networks. The expected access contention delay of IEEE 802.11 pro tocol is analyzed to support the routing decision. Simulation results show that the derived path length in proposed delay-oriented routing protocol is slightly higher than that of conventional shortest path with minimum hops approach but it; can significantly reduce both average transfer delay and p acket loss rate.