Implementation of a Topology Control Algorithm for MANETs Using Nomadic Community Mobility Model

In this paper we have presented a physical implementation of a topology control algorithm for MANETs. Mobile nodes follow the characteristics of the nomadic community mobility model. The proposed algorithm maintains the topology without any control message. There is no need to change routing table as connectivity of the network is maintained all through. Every node in the network is free to travel with its own velocity. Individual node can take the decision on their own to change the velocity for maintaining the connectivity with the reference node. Each mobile node is equipped with a transceiver and a GPS receiver. They can roam around a reference node. Reference node transmits its velocity and coordinate information periodically to all other nodes in a network. The nodes, after receiving this information from the reference node will modify its own velocity, if required, to maintain the topology. Results obtained through the experimentation with the prototype developed, demonstrate that the connectivity and hence the topology of the network is maintained always.