Title :
Orthogonal Space-Time Codes Based Signal Constellations for MIMO System
Author :
Alom, Md Zahangir ; Lee, Hyo Jong ; Ali, Khan Md Hashem ; Lee, M.H.
Author_Institution :
Dept. of Comput. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
Orthogonal space-time codes (OSTCs) have recently captivated considerable attention due to their properties of full diversity and low implementation complexity. In this paper, we derive effective use OSTCs for MIMO systems successfully. It has been calculated coding gain of the orthogonal ST code and fast ML decoding at the receiver can be decoded separately. This goal achieved by properly choosing the signal constellations and compare bit-error-rate (BER) to signal-to-noise ratio (SNR) of different QPSK and QAM techniques. Simulation results show that the obtained constellations outperform not only the conventional QAM constellation, but also other well-known constellations used for efficient data communications.
Keywords :
MIMO communication; error statistics; maximum likelihood decoding; orthogonal codes; quadrature amplitude modulation; quadrature phase shift keying; space-time codes; MIMO System; ML decoding; OSTC; QAM techniques; QPSK techniques; bit error rate; data communication; maximum likelihood decoding; orthogonal ST code; orthogonal space time code based signal constellation; quadrature amplitude modulation; quadrature phase shift keying; signal to noise ratio; Binary phase shift keying; Constellation diagram; MIMO; Quadrature amplitude modulation; Simulation; Multiple Input Multiple Output (MIMO); Orthogonal space-time codes (OSTCs); QAM; QPSK.; Signal Constellations;
Conference_Titel :
Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1827-4
DOI :
10.1109/CyberC.2011.90
