无线传感器网络AMRSSI加密调制定位算法研究

Research of RSSI-AM Encryption Modulation Localization Algorithm in Wireless Sensor Networks

摘要:

RSSI定位技术在无线传感器网络实际应用中,由于环境的开放性,信号很容易受到敌方的攻击,从而使系统的定位产生错误;通过对RSSI测距定位模型进行分析,提出了基于RSSI新的加密调制定位算法AMRSSI,该定位算法计算简单、保密性强、受外界干扰小;仿真实验表明该算法较普通的基于RSSI的测距方法定位精度上有了明显的改进,适合在通信开销小、硬件要求低的传感器网络节点上应用。

Abstract:

In practical application of wireless sensor networks, because of open environment, signal is easy to be attacked and traditional RSSI location technology produces errors. By analyzing the location modal of RSSI, this paper proposes a new encryption modulation algorithm:RSSI-AM, which is unlike most approaches. The location algorithm has the following advantages:simple calculation,strong security,powerful anti-interference ability and no hardware expansion required. Besides, the simulation experiment shows the location precision of ranging method based on RSSI-AM has obvious improvement compared with traditional algorithm. It can be used in the environment of wireless sensor network nodes with low cost and performance of hardware. 