Multi-channel Ad Hoc QoS Routing Based On Bandwidth Prediction(MAQBP)

Ad hoc networks are self-orgnizing, dynamic and the networks without any infrastructure.An Ad hoc routing protocol is designed to choosing a path through which the source and thedestination can communicate. Since it is flexible, Ad hoc routing attracts more and moreattentions recently. What’s more, with the fast advancement of network applications, more andmore people hope to provide QoS services in Ad hoc networks.Differing from ordinary routing protocols, our designed MAQBP(Multi-channel Ad hocQoS routing Based on bandwidth Prediction) takes each node’s future bandwidth intoconsideration. However, most existing Ad hoc QoS routing protocols only care about the currentsituations. We further design a novel mechanism to reuse channels in Multi-channel Ad hocnetworks.Other than theoretical analysis, we also present in this article our designing details ofMAQBP. According to route life cycle, our presentation concentrates on three parts: routerequest, route reply and route maintain&rebuild. In this article, heads of main functional packetsof MAQBP are described clearly. In order to decrease network traffic caused by Hello messages,we designed a unique Hello message structure that enables each node to obtain information fromtwo-hop away neighbors by just one Hello broadcast.At last, we implement MAQBP with NS2, and compare it with AODV and AQOR. Theresults show that MAQBP performs better in average network throughput, packet drop rate andaverage end-to-end delay, and can efficiently avoid bad influences by interference flows.