A comparison between different FHSS techniques for use in a multiple access secure wireless sensor network

A wireless sensor network is composed of a set of small sensor nodes deployed in an ad hoc fashion that cooperate for sensing a physical phenomenon (e.g, temperature, humidity, luminosity). Each sensor node plays a dual role as a data originator and a data router. Therefore a node is likely to communicate with a varying number of its peers. Communications receivers in these peer-to-peer networks must offer robust performance when receiving signals from multiple nodes and must offer resistance to hostile jamming and interferences. In this paper, we analyse the performance of frequency hopping spread spectrum for use in a multiple access secure wireless sensor networks. We use different type of detectors. The first is based on the fuzzy rank order detector (FROD), and the others are a conventional detector using the maximum rank sum receiver (MRSR) and the hard decision majority vote (HDMV) detector. We make a quantitative comparison between the three detectors in terms of error probability for wireless sensor networks.