Routing with load balancing in wireless ad hoc networks

by Zhou, Zhunyan

Abstract (Summary)
.An ad hoc wireless mobile network is an infrastructureless mobile network thrit hris no fixed routers: instead. aII nodes are capable of movement and can be connected dynarnicriliy in rin rirbitrriry miinner. In order to facilitrite communication of mobile nodes thnt may not be within the wireless range of each other. an efficient routing protocol is used ro Jiscowr routes between nodes so that messages may be delivered in a timely manner. In this thesis. we present a Load-Balanced Ad-hoc Routing (LBAR)protocol for communication in wireless ad-hoc networks. LBAR defines a new metric for routing known as the degree of nodal activity. In LBAR, a route is selected based on iictivity of nodes. The routes selected are, therefore, likely to have lest traffic load and transmit traitïc in ti rimely mlinner. LBAR has two phases. namely, route clivcoven, and puth ur < tUiterict~lce. The route discovery phase broadcasts setup messages to the destination, which is responsible for collecting routing information and selecting best routes. Whrnever link failure is detected. püth maintenance is initiated to patch up by detouring traffic to the destination. A comprehensive simulation mode1 was conducted to study the performance of the proposed scheme. Performance results show thlit LBAR outperfoms existing dhoc routing protocols in terms of packet delivery and average end-to-end delq Le!, words: Wireless Ad-hoc Network. Routing, Load Bal~ncing, Performance Evnluat ion. Pat h Discovery. and Path .Maintenance
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Source Type:Master's Thesis



Date of Publication:01/01/2001

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