TY - GEN
T1 - Reduced-complexity ML decodable STBCs
T2 - 12th International Symposium on Wireless Communication Systems, ISWCS 2015
AU - Mejri, Asma
AU - Khsiba, Mohamed Achraf
AU - Rekaya-Ben, Ghaya
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/4/15
Y1 - 2015/4/15
N2 - In this work, we revisit the structure of weight matrices for Linear Dispersion STBCs to admit ML decoding with low-complexity. We first propose novel sufficient design criteria for linear STBCs considering an arbitrary number of antennas and an arbitrary coding rate. Then we apply the derived criteria to three families of codes, multi-group decodable, fast decodable, and fast-group decodable codes. We provide analytical proofs showing that the ML-decoding complexity of such codes depends only on the weight matrices and their ordering and not on the channel gains or the number of antennas and explaining why the so far used Hurwitz- Radon theory-based approaches do not exactly determine the complexity of all classes of STBCs under ML decoding.
AB - In this work, we revisit the structure of weight matrices for Linear Dispersion STBCs to admit ML decoding with low-complexity. We first propose novel sufficient design criteria for linear STBCs considering an arbitrary number of antennas and an arbitrary coding rate. Then we apply the derived criteria to three families of codes, multi-group decodable, fast decodable, and fast-group decodable codes. We provide analytical proofs showing that the ML-decoding complexity of such codes depends only on the weight matrices and their ordering and not on the channel gains or the number of antennas and explaining why the so far used Hurwitz- Radon theory-based approaches do not exactly determine the complexity of all classes of STBCs under ML decoding.
KW - Fast decodable
KW - Low-complexity decoding
KW - Maximum likelihood decoding
KW - Space-time block codes
U2 - 10.1109/ISWCS.2015.7454432
DO - 10.1109/ISWCS.2015.7454432
M3 - Conference contribution
AN - SCOPUS:84985028728
T3 - Proceedings of the International Symposium on Wireless Communication Systems
SP - 666
EP - 670
BT - 2015 12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Proceedings
PB - VDE Verlag GmbH
Y2 - 25 August 2015 through 28 August 2015
ER -