Capacity and outage probability analysis of downlink MRT-SC in distributed antenna system
YE Zhun, SUN Li-nan, ZHANG Zhong-zhao
Department of Communication Engineering,Harbin Institute of Technology, Harbin 150001, China
Abstract:
This paper investigates the downlink capacity distribution and the outage probability of the interested area of maximum ratio transmission-selection combining (MRT-SC) scheme in the distributed antenna system (DAS). Composite fading channels are assumed, which include path loss, lognormal shadowing and multi-path Rayleigh fading. Analytical approximations of the capacity's cumulative distribution function (CDF), the outage capacity, the mean capacity, and the outage probability of the interested area are derived by means of moment generation function (MGF) and Gauss-Hermite series expansion based approaches. The influence of antenna number, path loss exponent, and shadowing standard deviation on the capacity distribution are investigated. The simulation results agree with the analytical approximations well, and thus the analytical approximations are able to substitute the time-intensive Monte Carlo simulation for further investigation.
Key words: distributed antenna system, downlink capacity, maximum ratio transmission, selection combining, moment generation function, Gauss-Hermite series expansion
DOI：10.11916/j.issn.1005-9113.2012.03.008
Clc Number:TN929
Fund:
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Capacity and outage probability analysis of downlink MRT-SC in distributed antenna system
本站小编 哈尔滨工业大学/2019-10-23
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