International Journal of Computer & Organization Trends(IJCOT)
Wireless Sensor Networks (WSN) deals with variety of numerous applications such as monitoring, target tracking, battlefield surveillance for civilian as well as military purposes. Many such application demands the location information of sensor nodes. Thus, localization is really becoming an important challenge over recent years. Since many techniques have been developed to solve the problem of localization, but all of them suffer from certain limitations. This paper provides an overview of the various existing indoor localization techniques with their applications in wireless sensor network.