Impact and Performance of Mobility Models in Wireless Ad-hoc Networks

This paper has discussed some of the common mobility models and few uncommon ones and their impact on various networks and routing parameters. In the past, mobility models were rather casually used to evaluate network performance under different routing protocols. Therefore, the network performance will be strongly influenced by the nature of the mobility pattern. The mobility model plays an essential role especially in routing on mobile ad-hoc networks. Mobility management in ad hoc wireless networks faces many challenges. Mobility constantly causes the network topology to change. In order to keep accurate routes, the routing protocols must dynamically readjust to such changes. Thus, routing update traffic overhead is significantly high. Different mobility patterns have in general different impact on a specific network protocol or application.