International Journal of Computer Science and Mobile Computing (IJCSMC)
A wireless ad hoc networks consists of wireless nodes that can be fashioned anywhere and anytime without any fixed infrastructure in which every node can act as both as a host or a router. Nodes that want to access the channel may participate in a distributed way via Carrier Sensing Multiple Access with Collision Avoidance (CSMA/CA) scheme in MAC (Medium Access Control) layer. Packet collisions among nodes cannot be fully eliminated due to the disseminated nature of the nodes. For this collision avoidance purpose MAC layer adopts Binary Exponential Back-off (BEB) scheme.