Topology configuration of sensor networks based on distributed fusion
Liu Shuang-jian GE Quan-bo · Journal of Zhejiang University(Engineering Science) · 2011
Dynamic network topology configuration(DNTC) was studied by adopting two optimal distributed asynchronous track fusion(ATF) methods for sensor networks with asynchronous sampling.Firstly,the local Kalman filtering is done in the network node and the estimates are transmitted to the processing center where different fusion operations are performed to realize predict calibration and recursive weighted fusion.Secondly,the real-time recursive fusion estimate is compared with the tracking precision and the decision to stop or continue is given.Finally,the DNTC and energy conservation can be realized.Moreover,the analysis of network energy conservation is also presented and the simulation examples are given to show the validity of the proposed methods.The results show that both the proposed methods can realize the DNTC function and energy conservation,and the method which adopts optimal fusion has better effect than the suboptimal one.