%0 Journal Article
%T Location privacy protection routing for wireless sensor network<br>无线传感器网络的位置隐私保护路由
%A YAO Jian-bo
%A WEN Guang-jun
%A <br>姚剑波
%A 文光俊
%J 计算机应用
%D 2008
%I 
%X When Wireless Sensor Network (WSN) is used to monitor sensitive objects, the location privacy of monitored objects becomes a key issue. When a sensor node reports a monitored object to base station by sending a series of messages through multiple hops, an adversary may trace back the source location. Flooding-based phantom routing has a problem that safety period becomes smaller and energy costs become higher for protecting source-location privacy. In this paper, directed-random-walk-based phantom routing was proposed to make it difficult for an adversary to backtrack hop-by-hop to the origin of the sensor communication. In directed-random-walk-based phantom routing, every message experiences two phases: the first, the same as flooding-based phantom, is a random walk or directed walk, and a subsequent directed-random-walk to deliver the message to the base station. Compared to flooding-based phantom, directed-random-walk-based phantom routing has clearly larger safety period and lower energy costs.
%K Wireless Sensor Network (WSN)
%K privacy protection
%K phantom flooding
%K directed random walk<br>无线传感器网络
%K 隐私保护
%K 幻影洪泛
%K 定向随机步
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=4DAA1DC928406741C10AB46843999CD9&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=F2D4C4F6570F167A&eid=196B965FCC00ED31&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=9