A multi-channel route relay protocol for path breakage and inter-channel interference in mobile Ad Hoc networks

Abstract

Quality-of-Service (QoS) routing and bandwidth reallocation is one of the most important issues to support multimedia service in wireless multihop networks. The goal of QoS routing is to find a satisfactory path that can support the end-to-end QoS requirements of the multimedia flow. In this paper, we propose a multi-channel route relay MAC protocol to alleviate the adverse effects by inter-channel interference and path breakage caused by mobility in multi-channel mobile ad hoc networks. Our protocol relays an alternate channel via the neighbor which finds the released node when a communicating node moves out of transmission range. Simulation results demonstrated that our protocol may reduce communication overheads associated with exchanging control messages for re-establishing a path. © Springer-Verlag 2004.