TY - JOUR
T1 - Differential Space-Time Modulation with Full Spatio-Spectral Diversity and Arbitrary Number of Transmit Antennas in ISI Channels
AU - Li, Hongbin
PY - 2003
Y1 - 2003
N2 - We present herein a differential space-time-frequency (DSTF) modulation scheme for systems with an arbitrary number of transmit antennas over frequency-selective fading channels. The proposed DSTF scheme employs a concatenation of a specially designed spectral encoder and a differential encoder/mapper that yield the maximum spatio-spectral diversity advantage and significant coding gain. To reduce the decoding complexity, the differential encoder is designed with a unitary structure that decouples the maximum likelihood (ML) detection in space and time; meanwhile, the spectral encoder utilizes a new linear constellation decimation (LCD) coding scheme that encodes across a minimally required subchannels and, as a result, has the least decoding complexity among all full-diversity codes. Numerical results show that the proposed DSTF scheme compares favorably with several existing differential space-time schemes for frequency-selective channels.
AB - We present herein a differential space-time-frequency (DSTF) modulation scheme for systems with an arbitrary number of transmit antennas over frequency-selective fading channels. The proposed DSTF scheme employs a concatenation of a specially designed spectral encoder and a differential encoder/mapper that yield the maximum spatio-spectral diversity advantage and significant coding gain. To reduce the decoding complexity, the differential encoder is designed with a unitary structure that decouples the maximum likelihood (ML) detection in space and time; meanwhile, the spectral encoder utilizes a new linear constellation decimation (LCD) coding scheme that encodes across a minimally required subchannels and, as a result, has the least decoding complexity among all full-diversity codes. Numerical results show that the proposed DSTF scheme compares favorably with several existing differential space-time schemes for frequency-selective channels.
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M3 - Conference article
AN - SCOPUS:0141787093
SN - 1520-6149
VL - 4
SP - 37
EP - 40
JO - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
JF - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
T2 - 2003 IEEE International Conference on Accoustics, Speech, and Signal Processing
Y2 - 6 April 2003 through 10 April 2003
ER -