Abstract
Optimized Link State Routing Protocol (OLSR) is an efficient routing protocol used for various Ad hoc networks. OLSR employs the Multipoint Relay (MPR) technique to reduce network overhead traffic. A mobility model's main goal is to realistically simulate the movement behaviors of actual users. However, the high mobility and mobility model is the major design issues for an efficient and effective routing protocol for real Mobile Ad hoc Networks (MANETs). Therefore, this paper aims to analyze the performance of the OLSR protocol concerning various random and group mobility models. Two simulation scenarios were conducted over four mobility models, specifically the Random Waypoint model (RWP), Random Direction model (RD), Nomadic Community model (NC), and the Reference Point Group Model (RPGM) with a low as well as high random range mobility of the nodes. Moreover, BonnMotion Software and Network simulator NS-3 used to implement the simulation scenarios. Further, the performance of the OLSR protocol analyzed and evaluated based on latency, routing overhead, and packet loss ratio metrics. According to the results, the OLSR protocol provides the best performance over the RWP model in a low mobility environment, whereas the Nomadic mobility model is suitable for OLSR protocol in a high mobility environment.
Highlights
Advancements in ad hoc networks are being driven with the growing use of wireless networks[1]
This paper aims to analysis the performance of the Optimized Link State Routing Protocol (OLSR) routing protocol over four various mobility models and two different degrees of mobility
Simulation results indicate that the packet latency is increased for OLSR protocols when node mobility is increased under the various mobility models
Summary
Advancements in ad hoc networks are being driven with the growing use of wireless networks[1]. MANET is a network of wireless self-organized nodes powered by battery and built-in in situations where other forms of communication are impractical to deploy. The routing process is the main challenge in MANET for data transmission from sender to the receiver nodes. The routing protocol is use to route the data between mobile nodes from one node to another efficiently. These protocols are categorized into three different types [9,10]. The change in the direction and speed of nodes depend on the type of mobility models used in the network
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