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However, most existing multihop localization studies assume that the declared positions of beacon nodes are always reliable or even free of errors, which is not a valid assumption in practice. In this paper, we propose a robust multihop localization algorithm (RMLA) based on trust evaluation for diminishing the effect of unreliable beacons on the accuracy of node localization. Firstly, the trust evaluation framework is established on the basis of evidence theory. According to the multihop geometric relationship among nodes, every beacon evaluates the reliability of other beacons' declared positions. Then, the normal nodes integrate the evaluation results to obtain the total trust degrees of their multihop communication beacons, by use of an average method or an enhanced D-S evidence combination rule. Finally, the normal nodes employ the weighted Taylor-series least squares solver to estimate the optimal values of their coordinates. Extensive simulation results in isotropic and anisotropic networks show the robustness and effectiveness of our algorithm. <\/jats:p>","DOI":"10.1155\/2012\/972101","type":"journal-article","created":{"date-parts":[[2012,6,12]],"date-time":"2012-06-12T21:00:46Z","timestamp":1339534846000},"page":"972101","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Robust Multihop Localization for Wireless Sensor Networks with Unreliable Beacons"],"prefix":"10.1177","volume":"8","author":[{"given":"Renjian","family":"Feng","sequence":"first","affiliation":[{"name":"School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics (Beihang University), Beijing 100191, China"}]},{"given":"Xiaolei","family":"Guo","sequence":"additional","affiliation":[{"name":"School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics (Beihang University), Beijing 100191, China"}]},{"given":"Ning","family":"Yu","sequence":"additional","affiliation":[{"name":"School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics (Beihang University), Beijing 100191, China"}]},{"given":"Jiangwen","family":"Wan","sequence":"additional","affiliation":[{"name":"School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics (Beihang University), Beijing 100191, China"}]}],"member":"179","published-online":{"date-parts":[[2012,6,12]]},"reference":[{"key":"B1-2012-972101","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2002.1024422"},{"key":"B2-2012-972101","doi-asserted-by":"publisher","DOI":"10.3390\/s90906869"},{"key":"B3-2012-972101","doi-asserted-by":"publisher","DOI":"10.1080\/15501320902768625"},{"key":"B4-2012-972101","doi-asserted-by":"publisher","DOI":"10.1155\/2010\/859263"},{"key":"B5-2012-972101","doi-asserted-by":"publisher","DOI":"10.1155\/2010\/473037"},{"key":"B6-2012-972101","doi-asserted-by":"publisher","DOI":"10.1098\/rsta.2011.0382"},{"key":"B7-2012-972101","doi-asserted-by":"publisher","DOI":"10.1109\/MWC.2007.4407221"},{"key":"B8-2012-972101","doi-asserted-by":"publisher","DOI":"10.1016\/j.comnet.2006.11.018"},{"key":"B9-2012-972101","doi-asserted-by":"publisher","DOI":"10.1109\/SURV.2011.020211.00035"},{"key":"B10-2012-972101","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2005.861380"},{"key":"B11-2012-972101","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2008.4481347"},{"first-page":"201","volume-title":"Proceedings of the 4th International Symposium on Mobile Ad Hoc Networking and Computing (MOBIHOC \u203203)","author":"Shang Y.","key":"B12-2012-972101"},{"key":"B13-2012-972101","doi-asserted-by":"publisher","DOI":"10.1023\/A:1023403323460"},{"first-page":"184","volume-title":"Proceedings of the IEEE International Conference on Mobile Ad-Hoc and Sensor Systems","author":"Shang Y.","key":"B14-2012-972101"},{"first-page":"138","volume-title":"Proceedings of the 24th Annual Joint Conference of the IEEE Computer and Communications Societies (INFOCOM \u203205)","author":"Lim H.","key":"B15-2012-972101"},{"key":"B16-2012-972101","doi-asserted-by":"publisher","DOI":"10.3390\/s90100253"},{"first-page":"2551","volume-title":"Proceedings of IEEE Vehicular Technology Conference (VTC \u203205)","author":"Wong S. 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