Performance Analysis of DSDV, I-DSDV, OLSR, ZRP Proactive Routing Protocol in Mobile Ad Hoc Networks in IPv6

Ad hoc network is a collection of wireless mobile nodes where wireless radio interface connects each device in MANET to move freely, independently and randomly. Routing protocols in mobile ad hoc network helps to communicate source node with destination node by sending and receiving packets. The communication between these mobile nodes is carried out without any centralized control. Thus it is necessary to analyze the behavior of different routing protocols under different environments. Many studies have been done on the performance evaluation of routing protocols of MANET, but most of these studies are based on IPv4. On the other hand Ipv6 is gaining popularity because it has some additional feature over Ipv4 as it supports multicasting, multi-homing, efficient routing. Ipv6 is more secure as compared to IPv4 and has large address space to support. In this paper performance of four proactive ad hoc routing protocols Optimized Link State Routing Protocol (OLSR) Destination-Sequenced Distance Vector (DSDV) Improvement Destination-Sequenced Distance Vector (I-DSDV) Zone routing protocol (ZRP) evaluated under Ipv6 environment on the basis of end to end delay, packet delivery fraction, routing overhead. The objective of this paper is to investigate how these routing protocols behave under IPv6 environment and identify which routing protocol perform better. Ns-2 is used as simulation tool.