Time and frequency domain modeling of wideband radio propagation for personal, mobile and indoor applications

Recently JTC has proposed a new standard based on a time domain model to represent the statistical wideband characteristics of the indoor and outdoor radio channels. This paper presents a frequency domain autoregressive (AR) model for the simulation of the Joint Technical Committee (JTC) channel characteristics. The AR model requires less number of parameters for the realization of the channel. To compare the results of simulation from the JTC and the new AR model the cummulative probability distribution function of the RMS delay power spectrum is used. The delay power profiles defined by the JTC in the time domain are mapped to the poles of the AR model defined in the frequency domain. Several methods are proposed to match the CDF of τ _RMS obtained from the time domain JTC model into the CDF obtained from the equivalent frequency domain AR model