Ant based routing algorithm for videostreaming

Abstract

An ad hoc wireless network (AHWN) is a wireless network without any central node to communicate. The network is ad hoc because it doesn't have any fixed infrastructure and the node positions change randomly. In wired networks, routers and each node percolate to send the packets. The theme of a routing protocol in ad hoc networks is finding different paths to different nodes. The design of routing algorithm for such networks is difficult. Ant colony optimization (ACO) is a metaheuristic inspired from ants foraging behavior. In ACO algorithms, ants are agents or packets which move in the network for searching the path from sender to destination. Ants place pheromone on each traversed link. A path is constructed quickly which the majority of the ants (packets) follow. The path is based on pheromone concentration. Ant based routing algorithm (ARA) and AntHocNet algorithm depend on ACO. It is a combinational algorithm which includes a reactive route finding setup process with a proactive route maintaining process. Its aim is to keep information about existing routes and finding new routes. Video streaming is a collection of images displayed one after another with a set of frequency to give visibility of motion of frames. Video streaming in ad hoc networks is a challenging problem. In this paper performance of video streaming transmission using AntHocNet is evaluated using ns-2 simulator. This evaluation is compared with video streaming in wired networks using the AntNet routing algorithm. Video streaming support from Evalvid is used.