Title :
Performance of Generalized ABBA space-time block codes base on Q-ary LDPC
Author :
Li, Lu ; Zhang, Lin ; Zhang, Zhongpei
Author_Institution :
Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Tech of China, Chengdu, China
Abstract :
Orthogonal space-time block codes are a class of STBC which can achieve full diversity gain but typically loss of code rate. Quasi-orthogonal space-time code (QOSTBC) can achieve full code rate. However, they loss part of diversity gain. Generalized ABBA (GABBA) STBC is a improve QOSTBC, which can achieve full diversity gain, and also can overcome the drawback that unable to transmit with full rate in the cases of multi-antennas (more than 2) and complex signals with OSTBC. Furthermore, the performance of system will be improved more combine with the Q-ary LDPC channel codes.
Keywords :
antenna arrays; block codes; channel coding; diversity reception; orthogonal codes; parity check codes; space-time codes; Q-ary LDPC; QOSTBC; channel code; diversity gain; generalized ABBA quasiorthogonal space-time block code; multiantenna system; Block codes; Channel coding; Diversity methods; Iterative decoding; Laboratories; Maximum likelihood decoding; Parity check codes; Receiving antennas; Space time codes; Transmitting antennas;
Conference_Titel :
Communications, Circuits and Systems, 2009. ICCCAS 2009. International Conference on
Conference_Location :
Milpitas, CA
Print_ISBN :
978-1-4244-4886-9
Electronic_ISBN :
978-1-4244-4888-3
DOI :
10.1109/ICCCAS.2009.5250573
