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Code diversity in multiple antenna wireless communication

Publication ,  Journal Article
Wu, Y; Calderbank, R
Published in: IEEE International Symposium on Information Theory - Proceedings
September 29, 2008

The standard approach to the design of individual space-time codes is based on optimizing diversity and coding gain. This geometric approach leads to remarkable examples, such as the Golden Code, for which the complexity of Maximum Likelihood (ML) decoding is considerable. Code diversity is an alternative approach where a small number of feedback bits are used to select from a family of space-time codes. Feedback can be combined with sub-optimal low complexity decoding of the component codes to match ML decoding performance of any individual code in the family. It can also be combined with ML decoding of the component codes to improve performance beyond ML decoding performance of any individual code. One method of implementing code diversity is the use of feedback to adapt the phase of a transmitted signal. Phase adaptation with the 4 × 4 Quasi-Orthogonal Space-Time Code (QOSTBC) is shown to be almost information lossless; that is, this form of space-time coding does not reduce the capacity of the underlying multiple antenna wireless channel. Code diversity can also be used to improve performance of multi-user detection by reducing interference between users. Phase adaptation with two Alamouti users makes it possible for the Zero Forcing (ZF) or decorrelating detector to match the performance of ML joint detection. © 2008 IEEE.

Duke Scholars

Published In

IEEE International Symposium on Information Theory - Proceedings

DOI

Publication Date

September 29, 2008

Start / End Page

1078 / 1082

Related Subject Headings

  • Networking & Telecommunications
  • 4603 Computer vision and multimedia computation
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
  • 0801 Artificial Intelligence and Image Processing
 

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Wu, Y., & Calderbank, R. (2008). Code diversity in multiple antenna wireless communication. IEEE International Symposium on Information Theory - Proceedings, 1078–1082. https://doi.org/10.1109/ISIT.2008.4595153
Wu, Y., and R. Calderbank. “Code diversity in multiple antenna wireless communication.” IEEE International Symposium on Information Theory - Proceedings, September 29, 2008, 1078–82. https://doi.org/10.1109/ISIT.2008.4595153.
Wu Y, Calderbank R. Code diversity in multiple antenna wireless communication. IEEE International Symposium on Information Theory - Proceedings. 2008 Sep 29;1078–82.
Wu, Y., and R. Calderbank. “Code diversity in multiple antenna wireless communication.” IEEE International Symposium on Information Theory - Proceedings, Sept. 2008, pp. 1078–82. Scopus, doi:10.1109/ISIT.2008.4595153.
Wu Y, Calderbank R. Code diversity in multiple antenna wireless communication. IEEE International Symposium on Information Theory - Proceedings. 2008 Sep 29;1078–1082.

Published In

IEEE International Symposium on Information Theory - Proceedings

DOI

Publication Date

September 29, 2008

Start / End Page

1078 / 1082

Related Subject Headings

  • Networking & Telecommunications
  • 4603 Computer vision and multimedia computation
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
  • 0801 Artificial Intelligence and Image Processing