%0 Journal Article
%T Improved DV-Hop Positioning Algorithm Based on Modifying Hop Counts<br>基于跳数修正的DV-Hop定位的改进算法
%A ZHENG Jiu-hu
%A QIAN Huan-yuan
%A GAO De-ming
%A YAN Xiao-yong
%A <br>郑久虎
%A 钱焕延
%A 高德民
%A 严筱永
%J 计算机科学
%D 2013
%I 
%X DV-Hop algorithm is one of the most classic range-free localization algorithms in wireless sensor networks.In order to enhance the localization accuracy of the DV-Hop algorithm, this paper introduced two terms of the previous node and Total HopSize, and designed an improved MHDV-Hop algorithm. In the improved algorithm, the correction factor of unknown node to beacon node hops is calculated based on the number of PN. It not only dons't change the positioning process of the DV-Hop algorithm at lower ratio of beacon nodes and without additional hardware support, but also greatly improves the localization accuracy.
%K Wireless sensor networks
%K Node localization
%K DV-Hop
%K Previous node<br>无线传感器网络
%K 节点定位
%K DV-Hop
%K 前序节点
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=F2F3E0E822DEB5B29025B7A1672AAE64&yid=FF7AA908D58E97FA&vid=1371F55DA51B6E64&iid=CA4FD0336C81A37A&sid=E84BBBDDD74F497C&eid=5D71B28100102720&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=0