International Journal of Computer Applications
Wireless Sensor Networks (WSNs) are networks of distributed autonomous devices and use large number of sensor nodes that contains a processor, memory, wireless communication capabilities, sensing capabilities and a power source (battery) on-board to form a network. Developers of WSNs face challenges that arise from communication link failures, memory and computational constraints, and limited energy. Localization of sensor nodes in wireless sensor network plays an important role in many applications. It is important to monitor the location of the data source and event occurrences to track the target and phenomena.