Near-optimal low-complexity antenna selection scheme for energy-efficient correlated distributed MIMO systems

Title
Near-optimal low-complexity antenna selection scheme for energy-efficient correlated distributed MIMO systems
Author(s)
정성윤김병욱[김병욱]
Keywords
CAPACITY; CHANNELS; ALGORITHMS
Issue Date
201507
Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
Citation
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, v.69, no.7, pp.1039 - 1046
Abstract
A distributed multiple-input multiple-output (D-MIMO) system is a promising candidate for future wireless communications with significantly enhanced spectral and energy efficiency. For high data rate systems equipped with a large number of antennas, which cause a spatial antenna correlation, there is a strong motivation to develop schemes for achieving high energy efficiency and low computational complexity, while supporting high capacity. This paper proposes an effective near-optimal antenna selection algorithm with low complexity for correlated D-MIMO systems. The proposed algorithm begins with an antenna with the highest channel gain and adds the best antennas supporting the highest level of uncorrelation with the maximum channel gain in each step. Compared to the conventional algorithms via computer simulations, the proposed scheme achieved similar capacity to the optimal selection algorithms but with reduced hardware cost and complexity in several D-MIMO configurations with even highly correlated antennas. In particular, the performance gain of this scheme became significant when a small number of the best antennas were selected, resulting in high energy efficiency in D-MIMO systems. (C) 2015 Elsevier GmbH. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/31552http://dx.doi.org/10.1016/j.aeue.2015.04.002
ISSN
1434-8411
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공과대학 > 전자공학과 > Articles
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