TY - GEN
T1 - Sphere-packing modulated Space-Time Coding using non-binary LDPC-coded iterative-detection
AU - Alamri, O.
AU - Ng, S. X.
AU - Guo, F.
AU - Zummo, S.
AU - Hanzo, L.
PY - 2008
Y1 - 2008
N2 - A recently proposed Space-Time Block Coding (STBC) signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over Alamouti's conventional orthogonal design. In this contribution, we propose a purely symbol-based LDPC-coded scheme, demonstrating that the performance of STBC-SP systems can be further improved by concatenating sphere packing aided modulation with non-binary LDPC and by performing symbol-based turbo detection between the non-binary LDPC decoder and a rate-1 non-binary inner precoder. We also investigate the convergence behaviour of this symbolbased concatenated scheme with the aid of novel nonbinary Extrinsic Information Transfer (EXIT) charts. Finally, we demonstrate that in the investigated scenarios it requires 1-2dB lower power in comparison to equivalent effectivethroughput 0.5, 0.75 and 1 bit/symbol systems employing bit-based turbo detection.
AB - A recently proposed Space-Time Block Coding (STBC) signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over Alamouti's conventional orthogonal design. In this contribution, we propose a purely symbol-based LDPC-coded scheme, demonstrating that the performance of STBC-SP systems can be further improved by concatenating sphere packing aided modulation with non-binary LDPC and by performing symbol-based turbo detection between the non-binary LDPC decoder and a rate-1 non-binary inner precoder. We also investigate the convergence behaviour of this symbolbased concatenated scheme with the aid of novel nonbinary Extrinsic Information Transfer (EXIT) charts. Finally, we demonstrate that in the investigated scenarios it requires 1-2dB lower power in comparison to equivalent effectivethroughput 0.5, 0.75 and 1 bit/symbol systems employing bit-based turbo detection.
UR - https://www.scopus.com/pages/publications/51649122699
U2 - 10.1109/wcnc.2008.24
DO - 10.1109/wcnc.2008.24
M3 - Conference contribution
AN - SCOPUS:51649122699
SN - 9781424419968
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 106
EP - 111
BT - WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -