Performance Analysis of Secured Position Based Routing in Mobile Ad Hoc Networks

Mobile Ad hoc Networks are used particularly in critical applications that lack fixed Network infrastructure. The geographical information used by routing protocols makes forwarding decision for reduced routing. But the topology based MANET protocols are vulnerable to number of attacks. As position based routing protocols concentrate on improving the performance, they fail to concentrate on the security issues. Current position based routing allows anyone within the range to receive the position information and cannot be designed for use in high risk environment. If lots of authentication techniques are implemented, the battery power of the nodes gets exhausted. Because of some special characteristics of MANETs, prevention mechanism alone is not satisfied to manage the secure network. Detection of attack and security should be focused before an attacker can damage the structure of the system. The objective of the paper is to compare the performance of different secured position based routing protocols to find solution for secured routing.