Sensor Nodes Based Group Mobility Model (SN-GM) for MANET

Mobile ad hoc network is an autonomous system of mobile nodes connected by wireless links without any infrastructure support. Mobility of nodes in MANET is defined as entity based or group based. Entity mobility is designed to simulate the movement of each individual. Group mobility model are designed to simulate the movement of nodes in a group. Many of the application of mobile ad hoc networks are based on group mobility for example disaster recovery, battlefield situation, people visiting fair and search and rescue operation. Group mobility also introduces the concept of two or more subgroups moving individually. In this paper we propose a new group mobility model. In the proposed model there are number of groups that can move within the simulation area, and there are some individual static nodes, scattered in the area concerned, to report one group activity to other group. They might be think of as forwarding nodes or sensor nodes. Nodes in the same group move with same average velocity in the simulation area. As a part of discussion we will simulate our proposed group mobility model namely Sensor Nodes based Group Mobility Model (SN-GM) and evaluate the performance of routing protocol namely Ad Hoc On-Demand Distance Vector Routing protocol (AODV) and Dynamic Source Routing (DSR).