Enhancement of Network Lifetime by Topology Control Based on Location in MANET

The objective of topology control in MANET is to reduce the transmission power at each node in order to sustain the network topology and energy conservation as well. Controlling the transmission radii of nodes decreases the radio interference which in turn increases the spatial reuse of channel. The location of neighbour and direction are obtained by Global Positioning System (GPS) and angle of arrival. To reduce the hardware cost, only group of nodes are fitted with GPS device while other nodes get receive information about location form these nodes. Several protocols based on location for the topology control have been proposed. Extensive simulation is carried out and compared our proposed scheme with the existing protocols. The simulation results confirm that the proposed scheme out performs in terms of throughput and end to end delay.