Quality-of-service provisioning and resource management in wireless mesh networks

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Wireless mesh networking based on IEEE 802.11a/b/g, 802.16a or other technologies has been drawing significant attention in both industry and academia recently, as it demonstrates some extremely important characteristics, such as easy deployment, low cost, and potential high capacity. However, it also faces a variety of challenges relating to quality of service (QoS) provisioning, efficient radio resource usage, scalability, and other issues. The long term objective of this research is to study QoS provisioning for multimedia traffic in interconnected wireless and wireline networks where users can move freely to anywhere at any time. The objective of the research during the next five years is to propose and investigate performance of scalable radio resource management schemes in wireless mesh networks that can provide satisfactory QoS for more mobile users. In the proposed research, the radio resource management will consider how to best exploit the available capacity based on specific network conditions to support both the link layer and network layer transmissions. The resource management will also consider user mobility and handoffs in order to support mobile user's services seamlessly. A cross-layer approach allows the resource management to fully access to the benefit from different network layers. Various approaches will be studied to make the proposed resource management schemes scalable to work in large mesh networks. The proposed research is expected to achieve more effective and efficient radio resource utilization. It will also make wireless mesh networks easy to be deployed in not only local areas, but also city-wide and larger areas.