水下无线传感器网络中一种安全定位算法

Secure Localization Algorithm for Underwater Wireless Sensor Networks

提出一种基于阵列传输结构的无线传感器网络安全定位算法(USA)。该算法主要解决水下无线传感器网络(UWSN)面临的一些安全威胁问题。以提高无线传感器网络安全性,特别是位置信息的安全性为设计目标。利用节点协作形成的阵列作为天线阵列进行相互通信,在不增加额外硬件成本的同时,还获得阵列天线给无线传感器网络带来的优势,如减小多径效应、提高接收端的信噪比、增加系统容量等。USA算法基于这种阵列结构使网络得到很高安全特性,特别是,对Wormhole攻击具有非常好的抵御性能。仿真实验证明该算法的有效性。

A secure localization algorithm （USA） based on array transmitted for underwater wireless sensor networks （UWSN） is presented in this paper to resolve the problem of safety threats laced by underwater wireless sensor networks. The algorithm aims at improving UWSN security, particularly making localization information security as its design targets. It uses nodes cooperation to get array as antennae array to communicate and gains arraying antenna advantage for UWSN such as reducing multi-path effects, increasing signal to noise ratio of receivers and system capability and so on without increasing extra hardware cost. It has good ability to resist Wormhole attack. Simulation shows that this algorithm is efficient.