Performance Study of a Wireless Dynamic Topology over High Mobility Conditions

摘要

In this paper we investigate the performance of IEEE 802.11b/g ad hoc networks by means of an experimental study. We examine a dynamic topology, using high mobility conditions in order to simulate the effect of nodes moving in and out of the coverage area, thus resulting in link failures, dropped packets, lost packets and dynamic route acquisition. More specifically, we gather metrics for the two most important network performance factors, namely packet throughput and delay over high mobility conditions, using the simulation environment of NS-2. Our study considers the enhancement of Distributed Bellman-Ford algorithm, which is a widely used algorithm, and assesses the effectiveness of the enhanced version on top of a fourth generation system (4-G).