Threshold Selection Algorithm of Joint Metric for TOA Estimation in 60GHz Sensor Networks

com Abstract: Impulse radio (IR) 60GHz signal has been applied in ranging and localization systems because of higher multipath resolution. In order to improve the precision of the TOA estimation, a threshold selection algorithm based on a Joint Metric of the Skewness and Kurtosis after Energy Detection is proposed. According to the algorithm, a function used to describe the relationship between joint metric and normalized threshold is built and the performance compared to other algorithms is analyzed via IEEE802.15.3c CM1.1 channel. The result shows that the threshold selection algorithm proposed in this paper provides higher precision and robustness with different SNR environment in 60GHz sensor networks.