DocumentCode :
3143395
Title :
New Delay Optimum Quasi-Othogonal Space-Time Block Codes with Full Spatial Diversity
Author :
Chae, Changhyeon ; Min, Hyunae ; Kim, Junho ; Jung, Taejin
Author_Institution :
Sch. of Electron. & Comput. Eng., Chonnam Nat. Univ., Gwangju, South Korea
fYear :
2009
fDate :
1-3 June 2009
Firstpage :
808
Lastpage :
811
Abstract :
In this paper, we propose a novel, systematic structure for quasi-orthogonal space-time block codes (QO-STBCs) achieving full rate for even number of transmit antennas over quasi-static Rayleigh fading channels. Especially, the new codes are delay optimal unlike conventional QO-STBCs and thus have a great advantage in ML decoding complexity at a receiver. In order to exploit full spatial diversity, we utilize a constellation rotation method and also examine optimal rotation angles through brute-force search for some cases of modulations and transmit antennas. Computer simulation results show that the proposed codes exhibit average error performance almost the same as or better than the existing QO-STBCs.
Keywords :
maximum likelihood decoding; modulation coding; orthogonal codes; space-time codes; transmitting antennas; ML decoding complexity; brute-force search; computer simulation; constellation rotation method; delay optimum quasi-orthogonal space-time block codes; full spatial diversity; modulations; quasi-static Rayleigh fading channels; transmit antennas; AWGN; Block codes; Computer errors; Computer simulation; Decoding; Delay; Fading; Information science; Receiving antennas; Transmitting antennas; delay optimum; multiple transmit antennas; space time block code;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer and Information Science, 2009. ICIS 2009. Eighth IEEE/ACIS International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3641-5
Type :
conf
DOI :
10.1109/ICIS.2009.189
Filename :
5223077
Link To Document :
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