Energy Management in Cooperative Topology Control For Wireless Sensor Networks

Aiswarya Ravi
2015 unpublished
Wireless ad hoc networks has various advantages like instant deployment and reconfiguration capability has lead it in receiving growing attention during the last decade. Connectivity instability due to channel quality variation and limited battery lifespan is a problem of wireless ad hoc networks. There is several topology control [6] techniques used in order to attain certain desired properties such as connectivity, energy conception, mobility, network capacity, security, and so on. To
more » ... d so on. To increase energy efficiency and the network connectivity simultaneously we can use cooperative topology control. In transmitter cooperation [2], multiple nodes in one cluster simultaneously transmit the same message to a single node in another cluster. In receiver cooperation the receiving node or any other neighboring nodes succeeds in receiving the message correctly. In cooperative transmission it's assumed that a pair of node belonging to both communicating clusters will be pre assigned so that communication happens only between these two nodes with the help of neighboring nodes. Certain receiving node and one hope neighbors participate in receiver cooperation. In the existing system there is only one head node for one cluster. To improve energy consumption, multiple cluster heads within the same cluster is employed. Energy utilization is distributed among the cluster heads which makes it work longer than the cluster with single cluster head. The performance evaluation performed shows that the cluster communication with multiple head nodes has less latency and average hop count than the cluster with single head node.