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On Demand Channel Assignment Method for Channel Diversity (ODCAM)

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Document pages: 8 pages

Abstract: The IEEE 802.11s Wireless Mesh Networks (WMN) is a new multi-hop technology increasing the coverage of IEEE 802.11 Wireless Network and providing Internet access. In order to increase the mesh network capacity, the WMN has evolved from single-radio single-channel architecture to Multi-Channel MultiRadios (MC-MR) architecture. In MC-MR the main challenge of the WMN is the channel assignment. In this article, we propose a new channel assignment method based on channel diversity. This new method named ODCAM (On Demand channel Assignment Method for channel diversity ) defines a channel diversity mechanism used to select a new channel along the path between the source and the destination. The best path between the source and the destination is provided by the HWMP (Hybrid Wireless Mesh Protocol) protocol using MWCETT (Modified Weighted Cumulative Expected Transmission Time) an extension of the WCETT metric. The simulation results show the ODCAM performance compared with an hybrid approach.

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