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Variable-phase-shift-based RF-baseband codesign for MIMO antenna selection

Zhang, XY; Molisch, Andreas LU and Kung, SY (2005) In IEEE Transactions on Signal Processing 53(11). p.4091-4103
Abstract
We introduce a novel soft antenna selection approach for multiple antenna systems through a joint design of both RF (radio frequency) and baseband signal processing. When only a limited number of frequency converters are available, conventional antenna selection schemes show severe performance degradation in most fading channels. To alleviate those degradations, we propose to adopt a transformation of the signals in the RF domain that requires only simple, variable phase shifters and combiners to reduce the number of RF chains. The constrained optimum design of these shifters, adapting to the channel state, is given in analytical form, which requires no search or iterations. The resulting system shows a significant performance advantage... (More)
We introduce a novel soft antenna selection approach for multiple antenna systems through a joint design of both RF (radio frequency) and baseband signal processing. When only a limited number of frequency converters are available, conventional antenna selection schemes show severe performance degradation in most fading channels. To alleviate those degradations, we propose to adopt a transformation of the signals in the RF domain that requires only simple, variable phase shifters and combiners to reduce the number of RF chains. The constrained optimum design of these shifters, adapting to the channel state, is given in analytical form, which requires no search or iterations. The resulting system shows a significant performance advantage for both correlated and uncorrelated channels. The technique works for both transmitter and receiver design, which leads to the joint transceiver antenna selection. When only a single information stream is transmitted through the channel, the new design can achieve the same SNR gain as the full-complexity system while requiring, at most, two RF chains. With multiple information streams transmitted, it is demonstrated by computer experiments that the capacity performance is close to optimum. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Transactions on Signal Processing
volume
53
issue
11
pages
4091 - 4103
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000232838900004
  • scopus:27744451297
ISSN
1053-587X
DOI
10.1109/TSP.2005.857024
language
English
LU publication?
yes
id
193f0478-109b-4358-8099-657c91cb3727 (old id 216567)
date added to LUP
2007-10-10 20:34:31
date last changed
2017-11-19 04:06:33
@article{193f0478-109b-4358-8099-657c91cb3727,
  abstract     = {We introduce a novel soft antenna selection approach for multiple antenna systems through a joint design of both RF (radio frequency) and baseband signal processing. When only a limited number of frequency converters are available, conventional antenna selection schemes show severe performance degradation in most fading channels. To alleviate those degradations, we propose to adopt a transformation of the signals in the RF domain that requires only simple, variable phase shifters and combiners to reduce the number of RF chains. The constrained optimum design of these shifters, adapting to the channel state, is given in analytical form, which requires no search or iterations. The resulting system shows a significant performance advantage for both correlated and uncorrelated channels. The technique works for both transmitter and receiver design, which leads to the joint transceiver antenna selection. When only a single information stream is transmitted through the channel, the new design can achieve the same SNR gain as the full-complexity system while requiring, at most, two RF chains. With multiple information streams transmitted, it is demonstrated by computer experiments that the capacity performance is close to optimum.},
  author       = {Zhang, XY and Molisch, Andreas and Kung, SY},
  issn         = {1053-587X},
  language     = {eng},
  number       = {11},
  pages        = {4091--4103},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Signal Processing},
  title        = {Variable-phase-shift-based RF-baseband codesign for MIMO antenna selection},
  url          = {http://dx.doi.org/10.1109/TSP.2005.857024},
  volume       = {53},
  year         = {2005},
}