Correlation between Estimation Error and Possible Region in Localization Algorithms
Many localization algorithms in wireless sensor networks mention possible regions to increase the degree of localization precision. In this paper, we present the definite correlation between the estimation error and the possible region. The estimation error, which is the most important indictor to judge the performance of a localization algorithm, is proportional to the square root of the area of the possible region and the factor of proportionality relates to the shape of the possible region. We also propose two applications of the definite correlation, including estimation errors detection and energy conservation. The simulation results show that the definite correlation is suitable for all kinds of possible regions and it is feasible to detect estimation errors and conserve energy when we fix reasonable areas of possible regions in wireless sensor networks.
correlation estimation error possible region area shape wireless sensor networks
Shihao Yan Jianping Xing Deqiang Wang
School of Information Science and Engineering Shandong UniversityJinan, China School of Information Science and Engineering Shandong University Jinan, China
国际会议
沈阳
英文
1514-1520
2011-11-22（万方平台首次上网日期，不代表论文的发表时间）