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Firstly, we set some anchor nodes at the border land of monitoring regions. Secondly, the average one-hop distance between anchor nodes is modified, and the average one-hop distance used by each unknown node for estimating its location is modified through weighting the received average one-hop distances from anchor nodes. Finally, we use the particle swarm optimization to correct the position estimated by the 2D hyperbolic localization algorithm, which makes the result closer to the actual position. The simulation results show that the proposed algorithm has better localization performance in the localization precision and stability than the basic DV-Hop algorithm and some existing improved algorithms. <\/jats:p>","DOI":"10.1155\/2012\/213980","type":"journal-article","created":{"date-parts":[[2012,8,16]],"date-time":"2012-08-16T21:00:53Z","timestamp":1345150853000},"page":"213980","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":78,"title":["Improved DV-Hop Node Localization Algorithm in Wireless Sensor Networks"],"prefix":"10.1177","volume":"8","author":[{"given":"Xiao","family":"Chen","sequence":"first","affiliation":[{"name":"School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benliang","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2012,8,1]]},"reference":[{"key":"B1-2012-213980","doi-asserted-by":"publisher","DOI":"10.1016\/S1389-1286(01)00302-4"},{"key":"B2-2012-213980","doi-asserted-by":"publisher","DOI":"10.1016\/j.comcom.2009.05.005"},{"key":"B3-2012-213980","doi-asserted-by":"publisher","DOI":"10.1109\/INFCOM.2000.832252"},{"key":"B4-2012-213980","doi-asserted-by":"publisher","DOI":"10.1145\/345910.345917"},{"key":"B5-2012-213980","doi-asserted-by":"publisher","DOI":"10.1016\/j.comnet.2006.11.018"},{"key":"B6-2012-213980","first-page":"1734","volume-title":"Proceedings of the 22nd Annual Joint Conference on the IEEE Computer and Communications Societies","author":"Niculescu D."},{"key":"B7-2012-213980","doi-asserted-by":"publisher","DOI":"10.1109\/98.878533"},{"key":"B8-2012-213980","first-page":"1655","volume-title":"Proceedings of the 20th Annual Joint Conference of the IEEE Computer and Communications Societies","author":"Doherty L."},{"key":"B9-2012-213980","volume-title":"Computer Networking: A-Top Down Approach Featuring the Internet","author":"Kurose J. 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