LIU Hong-li, ZHOU Deng, XU Kun, et al. Adaptive weighted localization algorithm based on RSSI[J]. 2017, 36(3): 140-143. DOI: 10.13873/J.1000-9787(2017)03-0140-04.
Traditional static weighted centroid location( SWCL) cannot get accurate positioning precision because of influence of the multipath
reflection in indoor environment. Aimming at the problem
a new adaptive weighting positioning algorithm based on RSSI—DA—SWCL is proposed. The algorithm optimize the RSSI ranging method to eliminate the different node transmission power and other sudden interference effects on RSSI ranging. The algorithm use the information of anchor nodes and unknown nodes distance to dynamic let anchor nodes obtain the optimal weight coefficient adaptive
and it can improve positioning precision. RSSI—DA—SWCL algorithm is performed on the ZigBee platform
the RSSI—DA—SWCL algorithm performs better in terms of location precision by Matlab simulation and actual experiments compared to traditional localization algorithm.