Creating ad-hoc networks for remote sensing: Routing simulation of a satellite surveillance system

In this study, a satellite surveillance system has been created for wireless ad-hoc networks using network simulator-2 (ns2). Ad-hoc networks are infrastructure-less wireless networks which have no fixed network topology due to mobile nodes. In ad-hoc networks, the most important point is to find a communication path (routing). This study uses Ad-Hoc On-Demand Distance Vector (AODV) routing protocol as it discovers and maintains routes on demand and when the route to destination is unknown. In this routing protocol, routes to destinations are only maintained by nodes which are actively used in this route. Two wireless network scenarios with Constant-Bit Rate (CBR) traffics are investigated in this study. First scenario examines how node mobility affects the routing process and the second scenario simulates how congestion in nodes affects the routing mechanism.