Experimental Evaluation of Routing Metrics in Wireless Multi-Hop Network

Abstract

Routing protocols evaluate end-to-end path metrics which is conglomeration of individual link metrics to choose the best route. Routing protocols designed for wireless multi-hop constrained networks must optimally use the scare resources: bandwidth, battery power, memory, computing. Optimal paths are determined based on routing metrics. Analysis of routing metrics and impact of choice of routing metrics plays a major role on Quality of Service (QoS) parameters. This work mainly focus on empirical evaluation of signal strength based metric in indoor and outdoor environments to record Line Of Sight (LOS) and Non Line Of Sight (NLOS) radio characteristics. Analysis and experimentation is carried out using Xbee 802.15.4 modules and XCTU software