Title :
Capacity-approaching semi-orthogonal space-time block codes
Author :
Dung Ngoc Dao;C. Tellambura
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
fDate :
6/27/1905 12:00:00 AM
Abstract :
A new class of full-diversity space-time block codes (STBC) called semi-orthogonal algebraic space-time block codes (SAST codes) with rate one symbol per channel use is proposed. The SAST codeword matrix has a generalized Alamouti code structure where the transmitted symbols are replaced by circulant matrices. Properties of rate-one linear threaded algebraic space-time (LTAST) codes are exploited to construct SAST codes with maximal coding gain. SAST codes attain nearly 100% of the Shannon capacity of open-loop multiple-input single-output (MISO) channels. Our theoretical analysis and simulation results show that SAST codes gain several dB over LTAST codes and also outperform other STBC
Keywords :
"Block codes","Maximum likelihood detection","Peak to average power ratio","Analytical models","Telephony","Gain","Transmitting antennas","Constellation diagram","Space time codes","MIMO"
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM ´05. IEEE
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578386
