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Improved Design of Two and Four-group Decodable STBCs with Larger Diversity Product for Eight Transmit Antennas

Liu, W, Sellathurai, M, Xiao, P, Tang, C and Wei, J (2009) Improved Design of Two and Four-group Decodable STBCs with Larger Diversity Product for Eight Transmit Antennas In: IEEE ICASSP, 2009-04-19 - 2009-04-24, Taipei.

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Recently, full rate and full diversity two-group (2 Gp) and four-group (4 Gp) decodable space-time block codes (STBC) derived from quasi-orthogonal STBC (QSTBC) and designed under diversity product maximization criterion have been proposed. In this paper, we derive an upper bound of diversity product for those STBCs and discover that the diversity product of the current 2 Gp-QSTBC and 4 Gp-QSTBC has the potential to approach the upper bound for 8 transmit antennas. To this end, we propose an improved design of 2 Gp and 4 Gp STBC with increased diversity product for 8 transmit antennas by allowing sufficient number of dimensions for constellation rotation. The diversity product of the proposed two-group decodable STBC achieves the derived upper bound.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
Liu, W
Sellathurai, M
Xiao, P
Tang, C
Wei, J
Date : 26 May 2009
DOI : 10.1109/ICASSP.2009.4960189
Contributors :
Additional Information : © 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 27 Sep 2013 11:48
Last Modified : 27 Sep 2013 11:48

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