TY - GEN
T1 - Hybrid transmit waveform design based on beamforming and orthogonal space-time block coding
AU - Dietl, G.
AU - Wang, J.
AU - Ding, P.
AU - Zoltowski, M. D.
AU - Love, D. J.
AU - Utschick, W.
PY - 2005
Y1 - 2005
N2 - In this paper, we derive a hybrid of Beam-Forming (BF) and Space-Time Block Coding (STBC), where the space-time code is transmitted over the beams generated by the steering vectors corresponding to the channel path directions. This is for the practical case where the transmit array may have adequate information on the departure angles of the dominant paths between transmitter and receiver, but unreliable information on the associated complex path gains. We compute analytically the Signal-to-Noise Ratio (SNR) of the proposed hybrid for the specific case of a two-path channel model and using the orthogonal Alamouti code, and compare the result to the SNR of optimal Linear Precoding (LP) and the theoretically possible SNR of Orthogonal STBC (OSTBC). Simulation results show that the performance of the BF/STBC hybrid can be very close to LP - under certain conditions - or even better in the practical case where there are phase estimation errors in the path gain estimates employed at the transmitter.
AB - In this paper, we derive a hybrid of Beam-Forming (BF) and Space-Time Block Coding (STBC), where the space-time code is transmitted over the beams generated by the steering vectors corresponding to the channel path directions. This is for the practical case where the transmit array may have adequate information on the departure angles of the dominant paths between transmitter and receiver, but unreliable information on the associated complex path gains. We compute analytically the Signal-to-Noise Ratio (SNR) of the proposed hybrid for the specific case of a two-path channel model and using the orthogonal Alamouti code, and compare the result to the SNR of optimal Linear Precoding (LP) and the theoretically possible SNR of Orthogonal STBC (OSTBC). Simulation results show that the performance of the BF/STBC hybrid can be very close to LP - under certain conditions - or even better in the practical case where there are phase estimation errors in the path gain estimates employed at the transmitter.
UR - https://www.scopus.com/pages/publications/33646811203
U2 - 10.1109/ICASSP.2005.1416448
DO - 10.1109/ICASSP.2005.1416448
M3 - Conference contribution
AN - SCOPUS:33646811203
SN - 0780388747
SN - 9780780388741
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - V893-V896
BT - 2005 IEEE ICASSP '05 - Proc. - Design and Implementation of Signal Proces.Syst.,Indust. Technol. Track,Machine Learning for Signal Proces. Education, Spec. Sessions
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2005 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '05
Y2 - 18 March 2005 through 23 March 2005
ER -