Title :
Delay Spread Statistics in a Two-Path Distributed Antenna System with Gamma-Lognormal Fading Channels
Author :
Xiao-Dong Wang ; Guo-Sheng Rui ; Hao-Yu Xu ; Zhi-Yong Bu
Author_Institution :
Navy Submarine Acad., Qingdao
fDate :
8/1/2007 12:00:00 AM
Abstract :
This letter analyzes the statistical properties of the root-mean-square (RMS) delay spread in a two-path distributed antenna system, where the received signal power from each path is subject to composite gamma fading and lognormal shadowing. The channel power delay profile considered consists of two delta functions with correlated power levels. We present analytical expressions for the probability density function of the RMS delay spread, as well as the cumulative distribution function, mean value and standard deviation. These analyses are validated through comparison with Monte-Carlo simulation results.
Keywords :
delays; fading channels; gamma distribution; log normal distribution; probability; statistical analysis; Monte Carlo simulation; RMS delay spread; analytical expressions; composite gamma fading; cumulative distribution function; delay spread statistics; delta functions; gamma-lognormal fading channels; lognormal shadowing; probability density function; root mean square; two-path distributed antenna system; Delay effects; Dispersion; Fading; Power system modeling; Probability density function; Propagation delay; Receiving antennas; Shadow mapping; Signal analysis; Statistical distributions;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.061764
