Non-WSSUS analysis of measurement data for mobile communication channel

In this paper, the nonstationary statistical analysis of data obtained from mobile channel measurement campaign in a suburban environment is presented. The analysis is based on the non-WSSUS concept where the region of stationarity is defined. This region is defined bearing in mind that the interval over which WSSUS can be assumed is limited and dependent on the properties of the transmit signal and the channel. To completely characterize such channel, the values of condensed coherence and stationarity parameters are obtained and used to illustrate the effect of nonstationarity on the assumption of ergodic capacity. Results show that the assumption of ergodicity depends on the degree of deviation of channel statistics from WSSUS.