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Fast antenna selection algorithms for MIMO systems

Choi, Y S; Molisch, Andreas LU ; Win, M Z and Winters, J H (2003) IEEE Vehicular Technology Conference. VTC Fall, 2003 In IEEE 58th Vehicular Technology Conference, 2003. VTC 2003-Fall. 3. p.1733-1737
Abstract
We consider the capacity of multiple-input-multiple-output (MIMO) systems with reduced complexity. One link end uses all available antennas, while the other chooses the "best" L out of N antennas. The selection of the optimum antenna subset requires an exhaustive search of all possible combinations, involving (/sub L//sup N/) computations of determinants of size L /spl times/ L, which can become prohibitively complex. In this paper, we suggest a class of fast antenna selection algorithm that are based on the correlation or mutual information between the signals at the different antenna elements. It requires less than N/sup 2/ vector multiplications and thus leads to dramatic savings on the computation time. Its performance is very close to... (More)
We consider the capacity of multiple-input-multiple-output (MIMO) systems with reduced complexity. One link end uses all available antennas, while the other chooses the "best" L out of N antennas. The selection of the optimum antenna subset requires an exhaustive search of all possible combinations, involving (/sub L//sup N/) computations of determinants of size L /spl times/ L, which can become prohibitively complex. In this paper, we suggest a class of fast antenna selection algorithm that are based on the correlation or mutual information between the signals at the different antenna elements. It requires less than N/sup 2/ vector multiplications and thus leads to dramatic savings on the computation time. Its performance is very close to the optimum selection procedure: the capacity penalty is less than l bit/s/Hz for the analyzed examples. The algorithm thus offers the possibility of almost-optimum selection even in fast-changing environments. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
correlation methods, antenna arrays, antenna accessories, MIMO systems
in
IEEE 58th Vehicular Technology Conference, 2003. VTC 2003-Fall.
volume
3
pages
1733 - 1737
conference name
IEEE Vehicular Technology Conference. VTC Fall, 2003
external identifiers
  • Scopus:4143123219
ISSN
1090-3038
ISBN
0-7803-7954-3
DOI
10.1109/VETECF.2003.1285322
language
English
LU publication?
yes
id
154f0cf8-9ecd-4493-95d2-925cac6afd65 (old id 600539)
date added to LUP
2007-12-05 12:34:10
date last changed
2016-10-13 04:34:34
@misc{154f0cf8-9ecd-4493-95d2-925cac6afd65,
  abstract     = {We consider the capacity of multiple-input-multiple-output (MIMO) systems with reduced complexity. One link end uses all available antennas, while the other chooses the "best" L out of N antennas. The selection of the optimum antenna subset requires an exhaustive search of all possible combinations, involving (/sub L//sup N/) computations of determinants of size L /spl times/ L, which can become prohibitively complex. In this paper, we suggest a class of fast antenna selection algorithm that are based on the correlation or mutual information between the signals at the different antenna elements. It requires less than N/sup 2/ vector multiplications and thus leads to dramatic savings on the computation time. Its performance is very close to the optimum selection procedure: the capacity penalty is less than l bit/s/Hz for the analyzed examples. The algorithm thus offers the possibility of almost-optimum selection even in fast-changing environments.},
  author       = {Choi, Y S and Molisch, Andreas and Win, M Z and Winters, J H},
  isbn         = {0-7803-7954-3},
  issn         = {1090-3038},
  keyword      = {correlation methods,antenna arrays,antenna accessories,MIMO systems},
  language     = {eng},
  pages        = {1733--1737},
  series       = {IEEE 58th Vehicular Technology Conference, 2003. VTC 2003-Fall.},
  title        = {Fast antenna selection algorithms for MIMO systems},
  url          = {http://dx.doi.org/10.1109/VETECF.2003.1285322},
  volume       = {3},
  year         = {2003},
}