MAvB A Maximum Available Bandwidth based routing metric for multiradio multichannel Wireless Mesh Networks ensuring QoS provisions for real time communications

摘要

Self managing, self healing Wireless Mesh Networks are deployed with the goal of providing seamless broadband connectivity to community users. In this paper, we present a routing metric for multiradio multichannel mesh networks that emphasizes on estimating node to node available bandwidth while capturing both interflow and intraflow interference. Moreover, the isotonic nature of the proposed Maximum Available Bandwidth (MAvB) metric enhances its applicability to the link state routing protocols. We have implemented the MAvB metric in the OLSR protocol and evaluated it in NS 2.34 simulator. Experimental results specify the efficiency of the proposed metric towards finding less interfering and bandwidth guaranteed paths for real time applications avoiding ‘hotspots’.