Title :
Design considerations for hardware implementation of space-time codes
Author :
Cortez, Joaquín ; Bazdresch, Miguel ; Parra-Michel, Ramón ; Ruiz-Ibarra, Erica ; Bernal, Miguel
Author_Institution :
Dept. of Electr. Eng., ITSON Univ., Ciudad Obregon, Mexico
Abstract :
Hybrid multiple-input, multiple-output (MIMO) space-time codes combine spatial multiplexing with diversity gain to achieve both high spectral efficiency and link reliability. In this work, we present two decoding algorithms, one based on ordered, successive interference cancellation (OSIC) and the other on maximum likelihood (ML), and analyze their performance and complexity towards a hardware implementation. We use a correlated MIMO channel model and explore the impact of correlation on code performance and decoder complexity. We show that two space-time codes, LD STBC-VBLAST and double-space time transmit diversity (DSTTD) codes, are attractive candidates for implementation, each with different advantages.
Keywords :
MIMO communication; diversity reception; maximum likelihood decoding; space-time codes; telecommunication network reliability; LD STBC-VBLAST; MIMO channel model; MIMO space-time codes; code performance; decoder complexity; decoding algorithms; diversity gain; double-space time transmit diversity codes; hardware implementation; high spectral efficiency; link reliability; maximum likelihood; ordered successive interference cancellation; spatial multiplexing; Bit error rate; Complexity theory; Correlation; Maximum likelihood decoding; Receivers; Signal to noise ratio; Correlated Channel; DSTTD; Hybrid MIMO Codes; Maximum-Likelihood Detection; Sorted QR Decomposition;
Conference_Titel :
Electrical Engineering Computing Science and Automatic Control (CCE), 2011 8th International Conference on
Conference_Location :
Merida City
Print_ISBN :
978-1-4577-1011-7
DOI :
10.1109/ICEEE.2011.6106632
