A cooperative mobility management scheme for wireless mesh networks

Supporting mesh clients roaming without negative impact on the services with high priority is an important challenge in the design and deployment of a wireless mesh network which has emerged as a promising last mile broadband wireless access technology. In this paper, to improve the network performance, a handoff management scheme is proposed for wireless mesh networks. When the mesh client (MC) roams to the overlapping region between its associated mesh router (MR) and a new MR, these two MR transmit the information MC required simultaneously to decrease the error probability. On the other hand, when MC needs to handoff, it selects an optimal MR using priority and bandwidth requirements as metrics to ensure the quality of service of the on-going traffic. Simulation results show that the error probability and the total blocked traffic are decreased.