DocumentCode :
875763
Title :
Full-rate full-diversity space-time block codes for any odd number of transmit antennas
Author :
Jung, Tae-Jin ; Chae, C.-H. ; Lim, Hyun-Su
Author_Institution :
Sch. of Electron. & Comput. Eng., Chonnam Nat. Univ., Gwangju
Volume :
2
Issue :
9
fYear :
2008
fDate :
10/1/2008 12:00:00 AM
Firstpage :
1205
Lastpage :
1212
Abstract :
The authors propose a new class of space-time block codes (STBCs) achieving full-rate and full spatial diversity for general quadrature amplitude modulation (QAM) when using any odd number of transmit antennas under quasi-static Rayleigh fading channels. These codes are the extended works of the conventional Alamouti-ST constellation-rotating (CR) codes which are designed by serially concatenating CR precoders with the Alamouti scheme for an even number of transmit antennas. From the computer simulation results, it is observed that the best code in this class outperforms the existing ST-CR code and also exhibits error performance within only about 1-dB of the maximal ratio combining receiver. The codes possessing quasi-orthogonal (QO) characteristic are also included in this class, allowing simple maximum likelihood (ML) decoding with almost the same error performance as the best code in this class and the conventional QO-STBCs with full diveristy. These codes have identical or much lowered ML decoding complexity compared with the conventional QO-STBCs.
Keywords :
block codes; fading channels; maximum likelihood decoding; quadrature amplitude modulation; space-time codes; transmitting antennas; full-rate full-diversity space-time block codes; maximum likelihood decoding; quadrature amplitude modulation; quasi-static Rayleigh fading channels; transmit antennas;
fLanguage :
English
Journal_Title :
Communications, IET
Publisher :
iet
ISSN :
1751-8628
Type :
jour
DOI :
10.1049/iet-com:20070520
Filename :
4635912
Link To Document :
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