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Capacity of MIMO systems with antenna selection

Molisch, Andreas LU ; Win, M Z; Choi, Y S and Winters, J H (2005) In IEEE Transactions on Wireless Communications 4(4). p.1759-1772
Abstract
We consider the capacity of multiple-input multiple-output systems with. reduced complexity. One link-end uses all available antennas, while the other chooses the L out of N antennas that maximize capacity. We derive an upper bound on the capacity that can be expressed as the sum of the logarithms of ordered chi-square-distributed variables. This bound is then evaluated analytically and compared to the results obtained by Monte Carlo simulations. Our results show that the achieved capacity is close to the capacity of a full-complexity system provided that L is at least as large as the number of antennas at the other linkend. For example, for L = 3, N = 8 antennas at the receiver and three antennas at the transmitter, the capacity of the... (More)
We consider the capacity of multiple-input multiple-output systems with. reduced complexity. One link-end uses all available antennas, while the other chooses the L out of N antennas that maximize capacity. We derive an upper bound on the capacity that can be expressed as the sum of the logarithms of ordered chi-square-distributed variables. This bound is then evaluated analytically and compared to the results obtained by Monte Carlo simulations. Our results show that the achieved capacity is close to the capacity of a full-complexity system provided that L is at least as large as the number of antennas at the other linkend. For example, for L = 3, N = 8 antennas at the receiver and three antennas at the transmitter, the capacity of the reduced-complexity scheme. is 20 bits/s/Hz compared to 23 bits/s/Hz of a full-complexity scheme. We also present a suboptimum antenna subset selection algorithm that has a complexity of N-2 compared (N) to the optimum algorithm with a complexity of ((N)(L)). (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
antenna arrays, information rates, MIMO systems
in
IEEE Transactions on Wireless Communications
volume
4
issue
4
pages
1759 - 1772
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000232116500055
  • scopus:27744532600
ISSN
1536-1276
DOI
10.1109/TWC.2005.850307
language
English
LU publication?
yes
id
261234a4-65ea-49ec-a42a-f9af33130c98 (old id 223122)
alternative location
http://ieeexplore.ieee.org/iel5/7452/20262/00937004.pdf
date added to LUP
2007-08-07 16:35:44
date last changed
2017-10-01 04:50:21
@article{261234a4-65ea-49ec-a42a-f9af33130c98,
  abstract     = {We consider the capacity of multiple-input multiple-output systems with. reduced complexity. One link-end uses all available antennas, while the other chooses the L out of N antennas that maximize capacity. We derive an upper bound on the capacity that can be expressed as the sum of the logarithms of ordered chi-square-distributed variables. This bound is then evaluated analytically and compared to the results obtained by Monte Carlo simulations. Our results show that the achieved capacity is close to the capacity of a full-complexity system provided that L is at least as large as the number of antennas at the other linkend. For example, for L = 3, N = 8 antennas at the receiver and three antennas at the transmitter, the capacity of the reduced-complexity scheme. is 20 bits/s/Hz compared to 23 bits/s/Hz of a full-complexity scheme. We also present a suboptimum antenna subset selection algorithm that has a complexity of N-2 compared (N) to the optimum algorithm with a complexity of ((N)(L)).},
  author       = {Molisch, Andreas and Win, M Z and Choi, Y S and Winters, J H},
  issn         = {1536-1276},
  keyword      = {antenna arrays,information rates,MIMO systems},
  language     = {eng},
  number       = {4},
  pages        = {1759--1772},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Wireless Communications},
  title        = {Capacity of MIMO systems with antenna selection},
  url          = {http://dx.doi.org/10.1109/TWC.2005.850307},
  volume       = {4},
  year         = {2005},
}