Comparison of Two End-to-End Path Quality Measurement Methods in Mobile Ad-hoc Networks

Abstract

The generic Mobile Ad-hoc Network protocols do not measure and use node quality indicators, such as remaining energy, in the route selection process. Recent Researches have included these measurements in the route acquisition and selection process. However; separately measuring these parameters can lead to larger packet size as the number of measured parameter increase. Our objectives are 1) to propose a metric called weight that generalizes the quality of nodes, and use it in the best route selection process of the Ad hoc On-Demand Distance Vector (AODV) protocol. 2) To compare the two path quality measurement methods, namely- the product and summation methods. The paper presents mathematical proofs of why the multiplication method is better than the summation and simulation-based comparison of the two methods. The simulated route-request and reply packets of the AODV protocol are modified to use the generalized weight metric in the routing process. Simulation results show that the summation method produces higher delay and packet delivery than both the product method and the AODV protocols.