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On the coding advantages of the quasi-orthogonal space-frequency block codes

Shahabinejad, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1049/iet-com.2013.0049
  3. Abstract:
  4. In this study, the authors show that the coding advantage (CA) of quasi-orthogonal space-frequency block codes (QOSFBCs) could be decomposed into two parts, namely intrinsic CA (ICA) and extrinsic CA (ECA). Then, by using the ICA, the authors demonstrate that the optimum precoder of the QOSFBCs could be analytically derived without any requirement of the exhaustive search. Then, by improving the ECA, the authors enhance performances of the QOSFBCs efficiently - up to 4dB. Finally, the authors show that a very fast optimisation process for the QOSFBCs is viable over any arbitrary frequency-selective channel
  5. Keywords:
  6. Frequency-selective channels ; Optimisations ; Pre coders ; Quasi-orthogonal space-frequency block codes ; Computer applications ; Electrical engineering
  7. Source: IET Communications ; Vol. 8, Issue. 4 , 2014 , Pages 525-529 ; ISSN: 17518628
  8. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6758422
  9. URL: http://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0049