Adaptive routing considering the state of receiver for Ad Hoc Networks

Routing in MANET (mobile ad hoc network) is a challenging due to the dynamic nature of network topology and the resource constraints. To maximize the channel resource utilization and minimize the network transfer d.elay along the path, the shortest path with minimum hops scheme is often adopted. However, the quality of wireless channel among the mobile nodes is time varying due to fading, shadowing and pathloss. Considering adaptive channel coding and modulation scheme, the channel states can be characterized by different link throughput. If routing selection based on the link throughput is implemented, the minimum transfer delay from source to destination and the maximal throughput may be obtained. In our previous research, a channel adaptive shortest routing CASPR was presented, but it didn´t consider receiver´s state. In this paper, we take the condition of receiver into account, and present an adaptive routing (BR-CASPR). Simulation results show that if there is a proper weight between the channel quality and delay factor in total cost, the delay performance may be improved compared to CASPR.