1st International ICST Conference on Communications and Networking in China

Research Article

Implementation Aspects of Antenna Selection for MIMO Systems

Cite
BibTeX Plain Text
  • @INPROCEEDINGS{10.1109/CHINACOM.2006.344916,
    author={Andreas F. Molisch and Neelesh B.  Mehta and Hongyuan  Zhang and Peter   Almers and Jinyun  Zhang},
    title={Implementation Aspects of Antenna Selection for MIMO Systems},
    proceedings={1st International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2007},
    month={4},
    keywords={},
    doi={10.1109/CHINACOM.2006.344916}
}
  • Andreas F. Molisch
    Neelesh B. Mehta
    Hongyuan Zhang
    Peter Almers
    Jinyun Zhang
    Year: 2007
    Implementation Aspects of Antenna Selection for MIMO Systems
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2006.344916
Andreas F. Molisch1,2,*, Neelesh B. Mehta3,*, Hongyuan Zhang3,*, Peter Almers4,*, Jinyun Zhang3,*
  • 1: Mitsubishi Electric Research Labs, Cambridge, MA, USA.
  • 2: Department of Electroscience, Lund University, Sweden
  • 3: Mitsubishi Electric Research Labs, Cambridge, MA, USA,
  • 4: Department of Electroscience, Lund University, Sweden.
*Contact email: molisch@merl.com, mehta@merl.com, hongyuan@merl.com, Peter.Almers@es.lth.se, jzhang@merl.com

Abstract

Antenna selection is a promising technique for reducing complexity of multiple-antenna (MIMO) systems. In antenna selection, more antenna elements than RF transceiver chains are available for up-conversion and down-conversion. A subset of the available antenna elements is selected and connected to the RF chains. The reduction in the number of RF chains helps to reduce the implementation cost of multi-antenna systems. This paper considers a number of "practical" issues in the implementation of such systems. We discuss schemes for the channel estimation for all all antenna elements, and show that antenna selection is robust to channel estimation errors. RF preprocessing can be used to enhance the array gain of antenna selection schemes; the performance is robust to errors in the RF elements used for the preprocessing Finally, we analyze both bulk selection and per-tone selection in MIMO-OFDM systems, and show that the former is usually preferable. Results from simulations with 802.11n-compliant systems, and capacity results in measured channels show that SNR and capacity gains can be achieved with antenna selection in practical situations.

Published
2007-04-10
Publisher
IEEE
http://dx.doi.org/10.1109/CHINACOM.2006.344916
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