The International Journal of Innovative Research in Computer and Communication Engineering
Wireless sensor networks require accurate time synchronization. Recharging the battery of wireless sensor nodes in remote, hazardous environments is impractical. Since the capacity of battery is usually low and applications need more life time, nodes should use their energy in an efficient way. Most of the sensors' energy is consumed by algorithm for clock synchronization, by using message exchange between the sensor nodes. Using an energy-efficient protocol for clock synchronization, the battery life of a wireless sensor network can be increased.