Beamforming and DOA estimation for multiuser in multipath circumstance

An Yi; Lu Xin; Gao Benqing

Volume 24 Issue 11

Nov. 2002

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2002 > 24(11): 1499-1505

An Yi, Lu Xin, Gao Benqing. Beamforming and DOA estimation for multiuser in multipath circumstance[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1499-1505.

Citation:

An Yi, Lu Xin, Gao Benqing. Beamforming and DOA estimation for multiuser in multipath circumstance[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1499-1505.

An Yi, Lu Xin, Gao Benqing. Beamforming and DOA estimation for multiuser in multipath circumstance[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1499-1505.

Citation:

An Yi, Lu Xin, Gao Benqing. Beamforming and DOA estimation for multiuser in multipath circumstance[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1499-1505.

PDF( 1090 KB)

Beamforming and DOA estimation for multiuser in multipath circumstance

Received Date: 2001-03-19
Rev Recd Date: 2001-11-22
Publish Date: 2002-11-19

Abstract

Abstract

In this paper beamforming and DOA estimation for multiuser are discussed in multipath circumstance. Decorrelating detector is adopted to detect multiuser. CSS (Cyclic Spatial Smoothing) algorithm is presented. The algorithm with spatial smoothing can keep array weight dimension unchanged. Its theoretical foundation is that cyclic propagation of the sampling signal covariance inverse matrix is equivalent to averaging of the covariance matrix. The estimated spatial signature is adopted to construct the covariance matrix for high resolution DOA estimation. The simulation results show that CSS has better performance for multiuser beamforming.

FullText(HTML)

References(1)

References

J.H. Winters, J. Salz, R. D. Gitlin, The impact of antenna diversity on the capacity of wireless communication system, IEEE Trans. on Comm. 1994, 42(2/3/4), 1740-1751.[2]R. Lupas, S. Verdu, Linear multiuser detectors for synchronous code-division multiple-access channels, IEEE Trans. on Info. Theory, 1989, 35(1), 123-136.[3]J Choi, Beamforming for the multiuser detection with decorrelator in synchronous CDMA system:Approaches and performance analysis, Signal Processing, 1997, 60(2), 195-211.[4]S. Kapoor, S. Gollamudi, S. Nagaraj, Y. F. Huang, Adaptive multiuser detection and beamforming for interference suppression in CDMA mobile radio systems, IEEE Trans. on Veh. Technol. 1999,48(5), 1341-1355.[5]X.D. Wang, H. V. Poor, Blind multiuser detecion: A subspace approach, IEEE Trans. on Info.Theory, 1998, 44(2), 677-690.[6]T.J. Shan, T. Kailath, Adaptive beamforming for coherent signal and interference, IEEE Trans.on ASSP, 1985, 33(3), 527-536.[7]T.J. Shan, M. Wax, T, Kailath, On spatial smoothing for direction-of-arrival estimation of coherent signals, IEEE Trans. on ASSP, 1985, 33(4), 806-811.[8]M.D. Zoltowski, M. Kantz, S. D. Silverstein, Beamspace ROOT-MUSIC, IEEE Trans. on Signal Processing, 1993, 41(11), 344-364.[9]T.T. Lin, A novel beamforming for coherent signal reception, Proc. of 5th International Symposium on Antennas, Propagation and EM Theory, Beijing, Aug.2000, 599-602.[10]S. Haykin, Adaptive filter theory, Englewood Cliffis. NJ, Prentice-Hall, 1991, 565-566.[11]姚敏立,金梁,殷勤业,基于空间特征的多用户循环累量域波达方向估计算法,通信学报,2000,21(5),36-40.

Relative Articles

Supplements(0)

Cited By

Proportional views