How to Extend NS-2 for Wireless Sensor Networks Localization

Localization for wireless sensor networks (WSN) is concerned with determining the location of sensor nodes and it is very
important for many WSN applications. The cost and difficulties of building a WSN in a real world makes simulation an essential tool for analyzing and studying the performance of these networks. Little work in this area has been using NS-2, so that this paper aims to present detailed steps for modifying and adding new modules for NS-2 to implement a localization algorithm. In addition, this paper evaluate the performance of a localization algorithm under certain performance metrics.