International Journal of Emerging Technology and Advanced Engineering (IJETAE)
A mobile ad hoc network is a set of mobile nodes which constructs the network dynamically without any centralized coordinators and without any existing infrastructure. In wired networks changes in network topology are not feasible which led to the invention of wireless ad hoc network. Here in ad hoc network mobile nodes establish wireless connections among themselves without any central coordinator. The connections made among them can be direct connections if the communicating nodes are within the range of each other, otherwise multi-hop connections are used where each node will have to forward the packet until the destination node has been reached which led to the invention of different routing protocols for both unicast and multicast communication.