Trajectory Algorithm for Localization of a Mobile Beacon in Wireless Sensor Networks

After the general principle and the calculation process of some localization algorithms of wireless sensor network being introduced and analyzed, a novel algorithm of mobile beacon trajectory is proposed in this paper. Since a static trajectory does not work well in non-uniform, and a virtual force trajectory has some defects like worse stability, a combination trajectory is proposed, which is a new dynamic trajectory. Simulation results demonstrate that this trajectory can obtain a higher coverage rate. And simulation results of the algorithm based on RSSI with this trajectory demonstrate that the proposed method, which can obtain about 10% coverage rate under the situation that whether the unknown nodes distribute uniformly or not, is efficient and flexible.