A MULTICAST MECHANISM USING SIGNIFICANCE-BASED AND INTERFERENCE-AWARE ALGORITHM FOR INTRA WIMAX MESH NETWORK

作者：Cheng Sheng Tzong^*; Chou Chih Lun; Horng Gwo Jiun

来源：International Journal of Innovative Computing Information and Control, 2012, 8(2): 1479-1491.

• WiMAX mesh
• Multicast tree
• Interference-aware
• Steiner tree
• Significance-based

IEEE 802.16 WiMAX is a rapidly developing technology for broadband wireless access systems. The IEEE 802.16 MAC layer defines two operational modes, point-to-multipoint (PMP) mode and mesh mode. In the centralized protocol, all resources are controlled by base station (BS). In this work, we propose a novel two-stage scheme for constructing an effective multicast tree. The first stage applies a significance-based algorithm to finding suitable multicast points and constructing effective multicast sub-trees. The second stage applies an interference-aware Steiner tree to connecting the source to each nzulticast sub-tree. Finally, an algorithm generates the final multicast tree topology. Simulation results reveal that the proposed approach outperforms others in the construction of a multicast tree and significantly reduces the interference of a mesh network.

• 出版日期2012-2