DOI: https://doi.org/10.3103/S0735272708100075
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Linear equalizer in MIMO radio communications systems

V. B. Manelis, I. V. Kaioukov

Abstract


A linear equalizer for MIMO radio communications systems has been considered. The weight coefficients of the MIMO equalizer were obtained in accordance with the criterion of minimum mean squared error. Using the computer simulation technique and analyzing the case study of HSDPA (High Speed Downlink Packet Access) channel it was shown that the application of equalizer made it possible to significantly improve the reception characteristics as compared with those of a conventional rake receiver.


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References


3GPP, Technical Specification Group Radio Access Network; Multiplexing and channel coding (FDD), TR25.212, Version 6.7.0., Dec. 2005.

K. Hooli, M. Latva–aho, and M. Juntti, “Multiple access interference suppression with linear chip equalizers in WCDMA downlink receivers,” in Proceedings of IEEE Global Telecommunications Conference (GLOBECOM 1999), December 1999, No. 1, pp. 467–471.

T. P. Krauss and M. D. Zoltowski, “Chip–level MMSE equalization at the edge of the cell,” in Proceedings of IEEE Wireless Communications and Networking Conference (WCNC 2000), September 2000, No. 1, pp. 386–392.

V. B. Manelis and I. V. Kaioukov, “Equalizers in broadband radio communications systems,” Mobil’nye Sistemy, No. 2, 30 (2007).

R. Van Nee and R. Prasad, OFDM Wireless Multimedia Communications (Artech House, Boston–London, 2000).

G. J. Foschini and M. J. Gans, “On limits of wireless communications in a fading environment when using multiple antennas,” Wireless Personal Commun. 6, No. 3, 311 (1998).

S. Alamouti, “A simple transmit diversity technique for wireless communications,” IEEE Sel. Areas Commun. 6, No. 8, 1451 (1998).

G. D. Golden, C. J. Foschini, R. A. Valenzuela, and P. W. Wolniansky, “Detection algorithm and initial laboratory results using V–BLAST space-time communication architecture,” Electron. Lett. 35, No. 1, 14 (1999).

Spatial Channel Model Text Description, SCM Text V7.0, Spatial Channel Model AHG (Combined ad–hoc from 3GPP & 3GPP2), August 19, 2003.

V. Jungnickel, Y. S. Chang, and V. Pohl, “Performance of MIMO rake receivers in WCDMA systems,” in IEEE Wireless Commun. and Networking Conference, Atlanta, USA, 21–25 March 2004 (Atlanta, 2004).







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