A low complexity MMSE detector for multiuser layered space-time coded MIMO systems

May Gomaa, Ali Ghrayeb

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

4 Citations (Scopus)

Abstract

Merging layered space-time (LST) coding, which provides high data rate transmission, with space-time block coding (STBC) provides a tradeoff between transmit diversity and bandwidth efficiency in multiple-input multiple-output (MIMO) systems. This architecture is known as multilayered space time coding (MLSTC). In this paper, we propose a reduced complexity MMSE detector based on the Sorted QR decomposition, intended for MLSTC systems. The proposed decoder has reduced computational complexity in comparison to the group interference cancellation scheme. Our proposed decoder allows for the number of receive antennas to be less than the number of transmit antennas. Since we are dealing with a multiuser system, we wish all users to benefit from the same performance. We therefore use power allocation techniques to amplify users to the highest level of performance available and thus improving the performance.

Original languageEnglish
Title of host publication2007 Canadian Conference on Electrical and Computer Engineering, CCECD
Pages617-620
Number of pages4
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 Canadian Conference on Electrical and Computer Engineering, CCECD - Vancouver, BC, Canada
Duration: 22 Apr 200726 Apr 2007

Other

Other2007 Canadian Conference on Electrical and Computer Engineering, CCECD
CountryCanada
CityVancouver, BC
Period22/4/0726/4/07

Fingerprint

Antennas
Detectors
Space-time block coding (STBC)
Merging
Computational complexity
Decomposition
Bandwidth

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Gomaa, M., & Ghrayeb, A. (2007). A low complexity MMSE detector for multiuser layered space-time coded MIMO systems. In 2007 Canadian Conference on Electrical and Computer Engineering, CCECD (pp. 617-620). [4232818] https://doi.org/10.1109/CCECE.2007.159

A low complexity MMSE detector for multiuser layered space-time coded MIMO systems. / Gomaa, May; Ghrayeb, Ali.

2007 Canadian Conference on Electrical and Computer Engineering, CCECD. 2007. p. 617-620 4232818.

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

Gomaa, M & Ghrayeb, A 2007, A low complexity MMSE detector for multiuser layered space-time coded MIMO systems. in 2007 Canadian Conference on Electrical and Computer Engineering, CCECD., 4232818, pp. 617-620, 2007 Canadian Conference on Electrical and Computer Engineering, CCECD, Vancouver, BC, Canada, 22/4/07. https://doi.org/10.1109/CCECE.2007.159
Gomaa M, Ghrayeb A. A low complexity MMSE detector for multiuser layered space-time coded MIMO systems. In 2007 Canadian Conference on Electrical and Computer Engineering, CCECD. 2007. p. 617-620. 4232818 https://doi.org/10.1109/CCECE.2007.159
Gomaa, May ; Ghrayeb, Ali. / A low complexity MMSE detector for multiuser layered space-time coded MIMO systems. 2007 Canadian Conference on Electrical and Computer Engineering, CCECD. 2007. pp. 617-620
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