A joint centralized scheduling and channel assignment scheme in WiMax mesh networks

Authors:
Yuliang Tang;Yan Yao;Xinrong Lin
Affiliations:
Xiamen University, Xiamen, P. R. China;Xiamen University, Xiamen, P. R. China;Xiamen University, Xiamen, P. R. China
Venue:
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Year:
2009

Citing 2
Cited 1

Wireless mesh networks: a survey

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Performance evaluation of scheduling in IEEE 802.16 based wireless mesh networks

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Jointly optimal congestion control, channel allocation and power control in multi-channel wireless multihop networks

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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.