Performance Evaluation of a MANET Tested for Different Topologies

Abstract

In this paper, we present the implementation and analysis of our implemented testbed considering the optimized link state routing (OLSR) protocol. We investigate the effect of mobility and topology changing in the throughput of a mobile ad-hoc network (MANET). The mobile nodes move toward the destination at a regular speed. When the mobile nodes arrive at the corner, they stop for about three seconds. Experimental time is 150 seconds. In our experiments, we consider two cases: only one node is moving (mobile node) and one of OLSR daemon stopped at 50 seconds, after that it start at 100 seconds. We assess the performance of our tested in terms of throughput, round trip time (RTT) and packet loss. From our experiments, we found that the node join and leave operations affect more the TCP throughput and RTT than UDP.