Abstract
The IEEE 802.16 standard, also known as Worldwide Interoperability for Microwave Access (WiMax), which provides a mechanism for deploying high-speed wireless mesh networks in metropolitan areas. Thus, Quality of Service (QoS) is very important for WiMax networks. Providing QoS in multi-hop WiMax mesh networks is challenging as multiple links can interfere with each other if they are scheduled at the same time. In this paper, we propose the MDFS (Maximum Degree First Select) algorithm for channel assignment in multi-channel single-transceiver WiMax mesh networks. The goal is to eliminate the interference, to allow multiple non-interfering links to be scheduled at the same time and to reduce delay of traffic flows. The simulation result shows this proposed algorithm greatly reduces the length of scheduling and improves the BS's aggregate throughput in insufficient channels.
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