TY - JOUR
T1 - Orthogonal-like space-time-coded CPM systems with fast decoding for three and four transmit antennas
AU - Wang, Genyuan
AU - Su, Weifeng
AU - Xia, Xiang Gen
PY - 2010/3
Y1 - 2010/3
N2 - The Alamouti orthogonal spacetime block code for two transmit antennas was designed primarily for QAM and PSK modulations, and we have previously generalized it for the continuous phase modulation (CPM), denoted as OST-CPM, by maintaining the orthogonality (for the fast ML decoding/demodulation) and the phase continuity of two signals from two transmit antennas. In this paper, we design orthogonal-like spacetime coded CPM systems for three and four transmit antennas based on orthogonal and quasi-orthogonal spacetime codes. Although the signals from transmit antennas in the proposed orthogonal-like spacetime coded CPM systems are not orthogonal, the fast decoding/demodulation is maintained like the two transmit antenna case. Simulation results show that the performance of the proposed orthogonal-like spacetime coded CPM systems for four transmit antennas is much better than that of the OST-CPM systems for two transmit antennas.
AB - The Alamouti orthogonal spacetime block code for two transmit antennas was designed primarily for QAM and PSK modulations, and we have previously generalized it for the continuous phase modulation (CPM), denoted as OST-CPM, by maintaining the orthogonality (for the fast ML decoding/demodulation) and the phase continuity of two signals from two transmit antennas. In this paper, we design orthogonal-like spacetime coded CPM systems for three and four transmit antennas based on orthogonal and quasi-orthogonal spacetime codes. Although the signals from transmit antennas in the proposed orthogonal-like spacetime coded CPM systems are not orthogonal, the fast decoding/demodulation is maintained like the two transmit antenna case. Simulation results show that the performance of the proposed orthogonal-like spacetime coded CPM systems for four transmit antennas is much better than that of the OST-CPM systems for two transmit antennas.
KW - Continuous phase modulation (CPM)
KW - Orthogonal spacetime block codes
KW - Quasi-orthogonal spacetime block codes
KW - Spacetime coding
UR - http://www.scopus.com/inward/record.url?scp=77949533344&partnerID=8YFLogxK
U2 - 10.1109/TIT.2009.2039058
DO - 10.1109/TIT.2009.2039058
M3 - Article
AN - SCOPUS:77949533344
SN - 0018-9448
VL - 56
SP - 1135
EP - 1146
JO - IEEE Transactions on Information Theory
JF - IEEE Transactions on Information Theory
IS - 3
M1 - 5429101
ER -
