Abstract

This paper presents modification of span for wireless mobile ad hoc networks. Span is an energy efficient coordination algorithm for topology maintenance in wireless ad hoc networks. Each node in span does the local decision on whether to announce for or withdraw from coordinator. We modify coordinator withdrawal procedure of span by adding average speed of node as one of the condition for withdrawing it from coordinator. Evaluation and comparison of this speed aware modified span and span is through NS simulation. Simulation results show that speed aware modified Span outperforms existing span with respect to data packet loss, throughput and latency.

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