无线传感器网络中干扰模型的低开销测量方法

Low-cost Interference Model Measurement in Wireless Sensor Networks

无线传感器网络中的干扰会严重影响传输性能.最近的研究表明干扰模型能够很好的反映出干扰存在下传输的真实性能.目前建立干扰模型的方法会导致巨大的开销.本文提出一种无线传感器网络中干扰模型的低开销测量方法.该方法利用信号强度表,基于回归分析的模型以及一种新的时钟校准方法来降低开销.实验结果表明,跟传统的测量方法相比较,该方法能够在降低开销的同时达到很高的准确度.

Interference in Wireless Sensor Network（WSN） drastically degrades the performance of transmission.Recent studies have shown that the interference model offers significantly improved realism.However,existing interference modeling approaches lead to prohibitively high overhead.This paper presents LIMM,a Low-cost Interference Model Measurement,to reduce the overhead of maintaining accurate interference model for WSN.LIMM reduces the overhead for measurement by introducing a new signal strength table,a new regression-based PRR-SINR model and a new clock calibration technique.The experiment results show that LIMM can achieve high accuracy of PRR-SINR modeling with significantly low overhead comparing to the existing measurement method.