Title :
Performance Analysis for LDPC-Coded Modulation in MIMO Multiple-Access Systems
Author :
Wu, Jianming ; Lee, Heung-No
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Pittsburgh, Pittsburgh, PA
fDate :
7/1/2007 12:00:00 AM
Abstract :
We consider a low-density parity-check (LDPC)-coded modulation scheme in multi-input multi-output (MIMO) multiple-access systems. The receiver can be regarded as a serially concatenated iterative detection and decoding scheme, where the LDPC decoders perform the role of outer decoder and the multiuser demapper does that of the inner decoder. In this paper, we investigate the performance of the scheme with simulation results and bounds. Union upper bounds are derived, which can be used as additional means to evaluate the performance of the MIMO multiple-access system.
Keywords :
MIMO communication; concatenated codes; iterative decoding; modulation coding; multi-access systems; parity check codes; LDPC-coded modulation; MIMO multiple-access system; decoding scheme; low-density parity-check code; performance analysis; serially concatenated iterative detection; Concatenated codes; Iterative algorithms; Iterative decoding; MIMO; Multiaccess communication; Parity check codes; Performance analysis; Receiving antennas; Signal processing algorithms; Upper bound; Iterative demapping and decoding; low-density parity-check (LDPC)-coded modulation; multi-input multi-output (MIMO); multiple-access system; union upper bound;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2007.900627
