International Journal of Future Computer and Communication (IJFCC)
The method of obtaining the physical co-ordinates of a device is known as localization. Location information of the wireless devices in a network has many applications. Generally the authors use GPS (Global Positioning System) to get the location but it fails to provide the service in an indoor environment. Therefore they need a local positioning system, which can provide the relative location information in a network. Many approaches have been made for wireless localization using the distance obtained through Time of Arrival (ToA), Time Difference of Arrival (TDoA), Received Signal Strength (RSS), etc.