Geetanjali Rathee, Nitin Rakesh, Journal of Information Processing Systems Vol. 12, No. 1, pp. 57-72, Mar. 2016  

10.3745/JIPS.03.0014
Keywords: WMN, Resiliency, BBR, Routing, RPT
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Abstract

To provide effective communication in Wireless Mesh Network (WMN), several algorithms have been proposed. Since, the possibilities of numerous failures always exist during communication; resiliency has been proved to be an important aspect for WMN to recover from these failures. Resiliency in general is the diligence of reliability and availability in network. Several types of resiliency based routing algorithms have been proposed i.e. Resilient Multicast, ROMER etc. Resilient Multicast establishes two-node disjoint path and ROMER uses credit based approach to provide resiliency in the network. However these proposed approaches have some disadvantages in terms of network throughput and network congestion. Previously Buffer Based Routing (BBR) approach has been proposed to overcome these disadvantages. We have proved earlier that BBR is more efficient w.r.t throughput, network performance and reliability. In this paper we have considered the node/link failure issues and analogous performance of BBR. For this we have proposed Resilient Packet Transmission (RPT) algorithm as a remedy for BBR during such failures. Further we have shown the comparative performance analysis of previous approaches with our proposed approach. Network throughput, network congestion and resiliency against node/link failure are particular performance metrics which are examined over different sized WMN.

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