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Spectral Efficiency of Distributed MIMO Systems

Wang, Dongming, Wang, Jiangzhou, You, Xiaohu, Wang, Yan, Chen, Ming, Hou, Xiaoyun (2013) Spectral Efficiency of Distributed MIMO Systems. IEEE Journal on Selected Areas in Communications, 31 (10). pp. 2112-2127. ISSN 0733-8716. (doi:10.1109/JSAC.2013.131012) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:37154)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1109/JSAC.2013.131012

Abstract

Distributed multi-input multi-output (D-MIMO) system is a promising system to greatly improve the spectral efficiency and power efficiency of the cellular system. The performance analysis of the spectral efficiency of D-MIMO system is a fundamental problem for both theoretical study and technique evaluation. In this paper, the theoretical performances of spectral efficiency for D-MIMO system and traditional collocated MIMO (C-MIMO) system are studied and compared. First, a composite D-MIMO channel including path loss, shadow fading and multipath fading is given. Conditioned on the desired user position, by using the tight bounds and central limit theory, the analytical approximations of the mean and the cumulative distribution function (CDF) of the mutual information (MI) are derived for C-MIMO and D-MIMO channels at both high signal to noise ratio (SNR) and low SNR. Assuming that the users are randomly distributed in the cell, the CDFs of the spectral efficiency are also given for the C-MIMO and D-MIMO cellular system, and the closed-form expressions for the mean spectral efficiency, mean outage spectral efficiency are derived. Finally, the theoretical comparisons between C-MIMO and D-MIMO for large number of antennas are given, and simulation results are presented which validate the analytical results.

Item Type: Article
DOI/Identification number: 10.1109/JSAC.2013.131012
Uncontrolled keywords: MIMO communication antenna arrays cellular radio fading channels C-MIMO channel CDF cellular system composite D-MIMO channel cumulative distribution function distributed MIMO systems distributed antenna system distributed multi-input multi-output system mean outage spectral efficiency mean spectral efficiency multipath fading mutual information path loss power efficiency shadow fading distributed antenna system (DAS) distributed multiple-input multiple output (MIMO) spectral efficiency Antenna arrays Fading MIMO Mobile communication Random variables Signal to noise ratio
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 03 Dec 2013 11:40 UTC
Last Modified: 16 Nov 2021 10:13 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/37154 (The current URI for this page, for reference purposes)

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