Distributed interfering sensor scheduling scheme for target tracking

For target tracking applications, active ultrasonic sensors may suffer from inter-sensor-interference when these highly dense deployed sensors are not scheduled. In this paper, we propose a dynamic distributed sensor scheduling (DSS) scheme, where the tasking sensor is elected spontaneously from the sensors with pending sensing tasks in a distributed way via random competition by using Carrier Sense Multiple Access (CSMA)-like fashion, and releases the channel immediately when ranging task is done. Both simulation results and testbed experiment demonstrate the efficiency of DSS scheme in terms of system scalability and tracking performance.