期刊
IEEE COMMUNICATIONS LETTERS
卷 19, 期 8, 页码 1414-1417出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2015.2447543
关键词
Cramer-Rao lower bound (CRLB); ranging outlier; location-aware wireless network
资金
- National Science Foundation of China [61201181, 61471037]
- Foundation for the Author of National Excellent Doctoral Dissertation of China (FANEDD) [201445]
Malfunctioning anchors in location-aware wireless networks may produce ranging outliers and result in localization failure. In this letter, we propose a performance limit for TOA-based localization with malfunctioning anchors. An approximated Cramer-Rao lower bound (CRLB) in closed form is derived. Building on this, the relationship among localization accuracy, anchor's malfunctioning probability, ranging error of wel-lfunctioning anchors, and the maximum communication range are analyzed. Finally, numerical results verify the proposed CRLB and corroborate our analysis.
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