MIMO receive switched diversity with imperfect channel

Adarsh B. Narasimhamurthy, Cihan Tepedelenlioglu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Multiple input multiple output (MIMO) systems are shown to offer significant gains in error rate performance and capacity over single input single output (SISO) systems. To alleviate the resource requirement and complexity issues involved in the implementation of MIMO systems, receive switch and stay diversity combining is considered at the cost of modest performance degradation compared to full complexity systems. To the best of our knowledge, for the first time in the literature, the design and performance of MIMO systems employing switch and stay combining at the receiver with imperfect channel is considered. A minimal complexity training scheme suitable for both switching and channel estimation is described. From the pairwise error probability (PEP) upper bound derived, the optimal switching threshold as a function of SNR is obtained. It is shown that by using the optimal switching threshold full diversity is achievable. Power distribution between training and data space-time (ST) codewords is optimized to minimize the loss suffered due to channel estimation. Simulation results have also been included to corroborate our results.

Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
Pages1392-1396
Number of pages5
DOIs
StatePublished - 2009
Event43rd Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 1 2009Nov 4 2009

Other

Other43rd Asilomar Conference on Signals, Systems and Computers
CountryUnited States
CityPacific Grove, CA
Period11/1/0911/4/09

Fingerprint

Channel estimation
Switches
Degradation
Error probability

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

Cite this

Narasimhamurthy, A. B., & Tepedelenlioglu, C. (2009). MIMO receive switched diversity with imperfect channel. In Conference Record - Asilomar Conference on Signals, Systems and Computers (pp. 1392-1396). [5469869] https://doi.org/10.1109/ACSSC.2009.5469869

MIMO receive switched diversity with imperfect channel. / Narasimhamurthy, Adarsh B.; Tepedelenlioglu, Cihan.

Conference Record - Asilomar Conference on Signals, Systems and Computers. 2009. p. 1392-1396 5469869.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Narasimhamurthy, AB & Tepedelenlioglu, C 2009, MIMO receive switched diversity with imperfect channel. in Conference Record - Asilomar Conference on Signals, Systems and Computers., 5469869, pp. 1392-1396, 43rd Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 11/1/09. https://doi.org/10.1109/ACSSC.2009.5469869
Narasimhamurthy AB, Tepedelenlioglu C. MIMO receive switched diversity with imperfect channel. In Conference Record - Asilomar Conference on Signals, Systems and Computers. 2009. p. 1392-1396. 5469869 https://doi.org/10.1109/ACSSC.2009.5469869
Narasimhamurthy, Adarsh B. ; Tepedelenlioglu, Cihan. / MIMO receive switched diversity with imperfect channel. Conference Record - Asilomar Conference on Signals, Systems and Computers. 2009. pp. 1392-1396
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