Performance Analysis of Real and Non-real Time Traffic under MANET Routing Protocols

Technologies like Voice, video, ftp, etc. have made Mobile Ad hoc Networks (MANET) important in our Real life. MANET is a distinctive type of ad-hoc network that has stations changing their locations frequently, and automatically configuring themselves. Nodes can move freely in MANET while transmitting and receiving the data traffic by using wireless radio waves. Consequently, routing has become a vital factor and a key challenge for finding the best route in many MANET environments. The main focus of this paper is to analyze the impact of real time traffic (voice, video conference) and non-real time traffic (HTTP, FTP, Email) on the four routing protocols, Optimized Link State Routing (OLSR), Dynamic Source Routing (DSR), Ad-hoc On-demand Distance Vector (AODV), and Geographical Routing Protocol (GRP) over MANETs and also investigate their performance based on the average end-to-end delay and throughput. It is shown with extensive simulation results that OLSR protocol produces the highest throughput and the lowest delay compared to other protocols for non-real time and real time video traffic. It is also shown that OLSR protocol produces the lowest delay and acceptable throughput for real time voice traffic.