Development of Accurate Expressions for the Estimation of Delay Spread in Simulcast Networks Under Weibull Fading

摘要

This paper analyzes and evaluates the statistical properties of the rms delay spread (delay spread) in a two-path simulcast environment and same frequency in cell repeater. Each path is subjected to multipath fading characterized by wideband Weibull distribution. A novel, unified, and accurate analytical expressions for the probability density function, the mean, the mean square, and the standard deviation for the delay spread have been derived. The derived expressions are then used to study the implication of the fading and scale parameters on the statistical characteristics of the delay spread. To validate the accuracy of the derived formulas, the analytical results are compared with Monte-Carlo simulation results. Full agreement has been noticed between the simulated and the analytical results over a wide range of received signals levels ratio and different values of the fading parameters.