Improved RSSI localization algorithm with virtual reference tags

This conference proceeding presents an extension of our previous research on localization algorithm with Virtual Reference Tags (VRTs). VRTs are virtual tags that are mapped over a particular surveillance area. Each tag has its own stored information which is used by system as a reference point to track the target. In multistatic radar scenario with one transmitting and three receiving nodes are used to locate and track the intruder. Ultra Wide Band (UWB) pulses are transmitted and their reflections by intruder are received at three receivers. Received Signal Strength Indicator (RSSI) algorithm is used to process the received signal. VRTs not only provide solution to synchronization problems but also provide a platform where clutters due to object other than target can be easily removed by adding information in VRTs. These specific tags can indicate themselves as clutters, which can be identified by the system. Lastly we use Network Simulator 2 (NS2) to simulate and conclude the use of VRTs as clutter removal technique.