상세정보
학술지
Full-rate Full-diversity Space-time Block Codes for Any Odd Number of Transmit Antennas
- 저자
- 정태진, 채창현, 임형수
- 발행일
- 200809
- 출처
- IET Communications, v.2 no.9, pp.1205-1212
- ISSN
- 1751-8628
- 출판사
- IET
- 협약과제
- 08MR3800, 지상파 DTV 분산중계 기술개발, 김흥묵
- 초록
- 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 1dB 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. © The Institution of Engineering and Technology 2008.
- KSP 제안 키워드
- Alamouti scheme, Block codes, Computer simulation(MC and MD), Error performance, Full diversity, Maximal-ratio-combining(MRC), Maximum likelihood (ML) decoding, Quadrature-amplitude modulation(QAM), Quasi-orthogonal, Rayleigh Fading Channel, Space time(ST)