Analysing the Interaction between Mobility Model and Unipath Routing Protocols in Mobile Ad Hoc Networks
Sukant Kishoro Bisoy, Mohit Ranjan Panda, Gyanendra Kumar Pallai, Debapriya Panda · 2013
Mobile ad hoc networks (MANETs) play a great role in military applications where users share information with each other while moving. The movement of people varies depending on the environment, e.g. people may move randomly in different directions (Random Way Point); or move as a group (Reference Point Group Mobility model). Due to the presence of mobility in the mobile ad hoc network (MANET), the interconnections between nodes are likely to change, resulting in frequent changes of network topology. So, routing becomes a vital factor and a major challenge in such a network. TCP is a connection oriented transport layer protocol that provides reliable, in-order delivery of data to the TCP receiver. Even though TCP was developed to be used in wired network environments still it is needed because it can be used in the current Internet and can be integrated with fixed network. So TCP makes interoperability between wired network and wireless ad hoc network. Due to dynamic nature (node mobility) of MANET, TCP becomes more aggressive in case of packet loss and retransmit a lost packet and unnecessary causes an energy loss. Hence, it is of utmost importance to identify the most suitable and efficient mobility model for ad hoc routing protocol that can perform well in MANET. In this paper, we examine the performance of routing protocol based on packet delivery ratio, routing overhead, packet loss rate and average end to end delay across mobility model and finding interaction among them. Result shows that the performance of routing protocol varies with different mobility model used and connection pattern. We observe that DSR and AODV achieve the highest throughput and least overhead with RPGM when compared to RWP mobility models.