Double diagonalisation: An improved zero-forcing detector for orthogonal STBC over time-selective fading channels

F. C. Zheng*, A. G. Burr

*Corresponding author for this work

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


All orthogonal space-time block coding (OSTBC) schemes assume that the channel remains static over the length of the codeword. However, time selective fading channels do exist, and under such conditions the conventional O-STBC detectors will suffer from an error floor in the high signal-to-noise ratio (SNR) cases. This paper is a sequel to the authors' earlier results addressing the Gi codes (i = 3 and 4): it presents an improved zeroforcing implementation termed double diagonalisation. This new scheme incurs less noise amplification and therefore offers a much better BER for the same SNR.

Original languageEnglish
Title of host publicationVTC 2005-Fall
Subtitle of host publicationMid Way Through the Decade - Technology Past, Present and Future
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)0780391527
Publication statusPublished - 2005
Event62nd Vehicular Technology Conference, VTC 2005 - Dallas, United States
Duration: 25 Sept 200528 Sept 2005

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


Conference62nd Vehicular Technology Conference, VTC 2005
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2005 IEEE.

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