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A Broadcast Tree-Based Centralized Scheduling Mechanism for IEEE 802.16 Mesh Networks

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2 Author(s)
Tzong-An Su ; Dept. of IECS, Feng Chia Univ., Taichung, Taiwan ; Hsun-Hui Chu

In recent years, WiMAX has become a popular wireless communication technology. The IEEE 802.16 standard defines both point-to-multipoint ( PMP ) mode and mesh mode operations for WiMAX networks. In mesh mode, because of the long distance from SSs to BS, some SSs transmit packets by multi-hop manner. Moreover, mesh networks are always more complex and have worse network performance than PMP. In a limited bandwidth situation, the major goal is to increase network throughput. As a result of above reasons, routing tree construction, interference-aware scheme, and centralized scheduling are proposed. In this paper, we focus on centralized scheduling part and propose the Broadcast Tree-Based mechanism to improve existing method. Simulation results show that our mechanism significantly increase the network throughput in mesh mode opeartion.

Published in:

High Performance Computing and Communications (HPCC), 2011 IEEE 13th International Conference on

Date of Conference:

2-4 Sept. 2011