MOBILE SINK BASED ENERGY EFFICIENT DATA GATHERING SCHEME FOR HETEROGENEOUS WSN

Electronics and Communication engineering

Wireless Sensor Network is a well grown discipline and used in numerous number of real time applications in recent years. The data collection scheme is considered to be an effective part of sensor network. Energy Consumption and Fault Tolerance are considered to be two series factors that affect the performance of sensor network scenario. Numerous Topologies such as Hybrid, flat, chain and cluster, were adopted to provide successive data collection. The conventional scheme is CIDT (Cluster Independent Data collection Tree) uses flat topology with direct communication protocol fails to provide reliable transmission. Hence, the VELCT (Velocity Energy-efficient Link-aware Cluster Tree) technique is proposed for collecting the data in WSN, which construct Data Collection Tree (DCT) depends on Leader node(CH) location , this DCT includes Data Collection Node (DCN) which is selected based on their threshold value, connection and coverage times. This node involves only in forwarding the packets and it doesn’t sense the environment, it simply collects data from leader node and delivers to Base Station this would effectively mitigate the problem such as energy conservation, delay and packet loss in the network. The simulation results also proven that, VELCT achieves better performance and throughput , quality of service than the existing schemes.

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