WSN Multilateration Algorithm Based on Landweber Iteration

摘要：

Node localization plays a critical role in wireless sensor networks(WSN). The ill-posed problem caused by measurement error in the localization brings down the localization precision.Based on the Landweber Iteration principle,a new multilateral localization algorithm is proposed,which includes the optimal reference node number,the iteration index selecting,termination rules and the Accelerated Landweber Iteration Algorithm.Experiment results show that Landweber Iteration Algorithm obtains more satisfying performance than the well-known Maximum Likelihood Estimation. The localization error is less than Im when the iteration index (ω is 3.3×10-6. The optimal localization can be achieved about ten times iteration when the termination rules of the Accelerated Landweber Iteration Algorithm are σk≤ 1.

关键词： node localization multilateral localization algorithm landweber iteration principle.

作者: Lei Wang Yuntao Liu Xiaohui Xu Xiaopeng Wang

作者单位: School of Control Science and Engineering,Shandong University,Jinan 250061,China Information Technology School of SICT,Shandong Institute of Commerce and Technology

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 250-254

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）