On-demand partial disjoint multipath routing with low delay for wireless ad-hoc networks

Zafar, M.H. and Harle, D.A. and Andonovic, I. (2007) On-demand partial disjoint multipath routing with low delay for wireless ad-hoc networks. In: UNSPECIFIED. (http://www.cms.livjm.ac.uk/pgnet2007/Proceedings/P...)

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Abstract

Wireless ad-hoc networks are characterized by the lack of infrastructure, use of wireless links with limited bandwidth and frequent topological changes. On-demand multipath routing in wireless ad-hoc networks is effective in providing resilience to route failures and to successful load balancing. Previous work shows that on-demand multipath routing protocols achieve lower end-to-end delay, routing overheads and higher goodput under certain scenarios when compared to traditional single-path counterparts. In this paper, a Shortest Multipath Source Routing (SMS) protocol is proposed-a multipath extension to DSR- supporting multimedia applications. The proposed protocol builds multiple partialdisjoint paths that are shorter when compared to multiple linkdisjoint or node-disjoint paths and, in so doing, reduce delays and overheads incurred when recovering from route breaks. Simulation results show that the protocol achieves lower end-toend delay and higher goodput compared with DSR and SMR.