标题：Robustness analysis for node multilateration localization in wireless sensor networks
作者：Liu, Wei;Dong, Enqing;Song, Yang
作者机构：[Liu, W] School of Mechanical, Electrical and Information Engineering, Shandong University, Weihai, Shandong 264209, China;[ Dong, E] School of Mecha 更多
通讯作者地址：[Dong, EQ]Shandong Univ, Sch Mech Elect & Informat Engn, Weihai 264209, Shandong, Peoples R China.
关键词：Flip ambiguity;Node localization;Orthogonal projection;Wireless sensor networks
摘要：Node flip ambiguity is a key problem that needs to be addressed for range-based node localization in wireless sensor networks. In this paper we have implemented robustness analysis for node multilateration localization in wireless sensor networks. A robustness criterion, called orthogonal projection algorithm (OPA), to detect flip ambiguity for range-based nodes multilateration localization method is proposed. The basic idea of OPA comes from the orthogonal projection principle, and it has the low computational complexity. On the basis of OPA, we further derive an expression to quantify the probability of flip ambiguity occurrences. Theoretical analysis and numerical simulation results demonstrate that OPA has good detection results and the low computational complexity, the expression for calculating probability of flip ambiguity occurrences is feasible.