International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 72 - Number 18 |
Year of Publication: 2013 |
Authors: Manik Gupta, Nitika Sharma |
10.5120/12642-9295 |
Manik Gupta, Nitika Sharma . Localization of Nodes: A New Challenge for Wireless Sensor Networks. International Journal of Computer Applications. 72, 18 ( June 2013), 21-26. DOI=10.5120/12642-9295
With the widespread involvement of low cost, small sized sensor nodes in the wireless sensor networks (WISENETs) technology to support variety of collaborative applications such as monitoring and surveillance for civilian as well as military purposes; location aware computing for such nodes is really becoming an important challenge. Localization also plays a vital role in ubiquitous environments with computing potentials in targeting nodes for their security as well as navigation. Since inclusion of GPS receiver in a sensor node becomes too expensive, hence for locating sensor nodes in wireless sensor networks a small number of sink nodes are used that know their location whereas other nodes estimate their location based on the transmission and receiving energy of the message which they send to the sink node. This paper provides an overview of the existing localization solutions with their comprehensive performance metrics in wireless sensor networks and attempt to classify them broadly in terms of their usage area which can be indoor or outdoor or both.