Taguchi Design Of Experiments Approach To Find The Most Significant Factor Of Dymo Routing Protocol In Mobile Ad Hoc Networks
P. MANOHAR MANIKANTA, SETTY S. PALLAM · i-manager’s Journal on Wireless Communication Networks · 2018
Mobile Ad hoc Network (MANET) attracted many proficient researchers because of its various features. In MANETs, routing is a challenging issue because of route changes and link breaks. Among the reactive routing protocols in MANETs, Dynamic MANET On-demand (DYMO) routing protocol is selected because it is scalable for larger networks and it has less routing overhead. The drawback of DYMO routing protocol is that it does not support for smaller networks with low mobility speed. In this paper, the authors apply Taguchi Design of Experiments approach to identify the most significant factor that enhance QoS (Quality of Service) performance of DYMO routing protocol for smaller networks with low mobility by considering Route Request Wait Time (RRWT), Route Timeout (RT), Route Request Retries (RRT) as influencing parameters of DYMO routing protocol. The impact of three influential factors on two QoS performance metrics, i.e, Average Throughput and Packet Delivery Ratio has been evaluated. The experiments are run on NS2 simulator and the results are analyzed through Statistical tool Minitab using Main Effects Plot, Response Table and validated using Normal probability plot of Residuals, Residual Histogram, Residuals vs. Fits, and Residuals vs. Order. The Route Request Wait Time (RRWT) is identified as the most significant factor among the other factors for enhancing QoS of DYMO routing protocol for smaller and medium network sizes.