Abstract
We propose an optimum algorithm jointly to estimate the delay and directions of arrival (DOA) channel characteristics based on the maximum likelihood (ML) criterion for the MC/CDMA system. By cyclically shifting the signature chip from one symbol to another in the acquisition period, the received signal from different users can be so processed as separately provided to the algorithm. The algorithm performs a 2-dimensional DFT on the signal sequence thus provided from the antenna elements and the subcarrier channels, first giving a statistics by which the DOA can be estimated and, by using its result, the path characteristic can be assessed. By simulation, diversity combining using the weights derived from the measurement by the proposed method is shown to greatly outperform the conventional combining.
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References
R. Schmidt, “Multiple emitter location and signal parameter estimation”, IEEE J.Select. Areas Commun., vol. 8, no. 4, pp. 675–682, May, 1990.
R. Roy and T. Kailath, “ESPRIT-Estimation of signal parameters via rotational invariance techniques”,IEEE Trans. Acoustics, Speech, Signal Processing, vol. 37, no.7, pp.984–995, July, 1989.
P.V. Pooyen, M. Liitter and D. V. Wyk, Space-time processing for CDMA mobile communication, Kluwer Academic Publishers, 2000.
Z. Lei and T.J. Lim, “Estimation of direction of arrival of multipath signals in CDMA systems”, IEEE Trans. Commun., vol. 48, no. 6, pp 1022–1028, June, 2000.
M. Fujii, Y. Kinoshita, G. Oka, M. Itami, K. Itoh, “A study on Channel Estimation for Frequency-Division Multi-Carrier CDMA” (in Japanese), IEICE Tech. Report, SST2000–51, pp.19–24, Oct., 2000.
K. Itoh, M. Fujii, S. Suzuki, M. Itami, “Deriving optimum algorithm for simultaneously estimating directions of arrival and path characteristics of multipath propagation by using circular array antenna” (in Japanese), IEICE Tech. Report, SST2000–85, pp.123–128, March, 2001.
W.C.Y. Lee, Mobile Communications Engineering, 2nd ed., McGraw-Hill, 1997.
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Suzuki, S., Fujii, M., Itami, M., Itoh, K. (2002). Joint Directions of Arrival and Delay Channel Characteristics Estimation Using Circular Array Antenna for MC/CDMA. In: Fazel, K., Kaiser, S. (eds) Multi-Carrier Spread-Spectrum & Related Topics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-3569-7_33
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DOI: https://doi.org/10.1007/978-1-4757-3569-7_33
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4419-4945-5
Online ISBN: 978-1-4757-3569-7
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