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Time synchronization protocol for wireless sensor networks using clustering

In recent years, the use of Wireless Sensor Network (WSN) has been tremendous increased in various fields such as military, environmental, medical, home monitoring and disaster management. In such applications large numbers of nodes are deployed, these nodes work independently and often remain unattended. These nodes sense the data from the environment and communicate the same to the sink or base station. To identifying the correct event time, these nodes need to be synchronized with global clock. Therefore, time synchronization is significant feature in WSNs. Since the performance of time synchronization algorithm is greatly influenced by many factors. The energy conservation is one of the important issues in WSNs which helps to prolong the lifetime of the network. This paper presents a Clustered Time Synchronization algorithm and energy model which conserves the energy beside accuracy while synchronizing the WSNs. The simulation result shows that this algorithm has better synchronization accuracy and low power consumption as compare to RBS and TPSN.