A Joint Routing and Bandwidth Allocation Protocol for IEEE 802.16 WiMax Mesh Networks
Bandwidth allocation and routing are two important mechanisms in the provision of guaranteed QoS in wireless networks. The QoS provisioning algorithms developed in mobile ad hoc networks might not be applied directly in wireless mesh networks, since, WiMax based backhaul mesh networks have different characteristics. In this paper, to solve the routing and resource allocation issues, the authors propose to design a joint routing and bandwidth allocation protocol for WiMAX networks. In this protocol, a bandwidth estimation technique is combined with route discovery and setup in order to find a best route. While estimating the bandwidth, both local bandwidth and the bandwidth of all nodes within the interference range, are considered.