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An Asymptotical Approximation of Outage Probability for Distributed MIMO Systems

Héliot, F, Hoshyar, R and Tafazolli, R (2009) An Asymptotical Approximation of Outage Probability for Distributed MIMO Systems In: ICT Mobile Summit, 2009-06-10 - 2009-06-12, Santander, Spain.

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Abstract

The instantaneous capacity of multiple-input multiple-output (MIMO) systems over Rayleigh fading channel is known to follow a normal probability distribution when the number of antennas is large. In this paper, we extend this result for distributed MIMO (DMIMO) systems. First, we show that the instantaneous capacity of DMIMO systems is asymptotically equivalent to a Gaussian random variable, we then derive an asymptotical approximation of the outage probability which becomes tighter as the rate or the number of nodes and antennas of the system increases. This expression can be used to easily evaluate the outage probability of DMIMO systems, both for downlink and uplink cases. As an application, we utilise this expression to compare the theoretical throughput performance of MIMO and DMIMO systems.

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Fabien Heliot
Date Deposited: 26 Nov 2010 16:06
Last Modified: 23 Sep 2013 18:40
URI: http://epubs.surrey.ac.uk/id/eprint/2660

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