Antenna diversity with multichannel adaptive equalization in digital radio

A multichannel adaptive equalization method is presented for use in cellular digital radio to combat the effects of rapidly changing frequency selective fading. This signal processing technique can be applied in a communication system employing diversity antennas, with each antenna output downconverted and fed into a multichannel digital filter. Simulation results indicate performance improvements with this filtering method applied as a diversity combiner/adaptive equalizer. Performance comparisons to other sub-optimal techniques and theoretical bounds are presented.<<ETX>>

[1]  Seymour Stein,et al.  Fading Channel Issues in System Engineering , 1987, IEEE J. Sel. Areas Commun..

[2]  H. Hashemi Simulation of the urban radio propagation channel , 1979, IEEE Transactions on Vehicular Technology.

[3]  S. T. Nichols,et al.  Antenna diversity in cellular FM radio , 1991, [1991] IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Conference Proceedings.

[4]  John G. Proakis,et al.  Digital Communications , 1983 .

[5]  S. Seidel,et al.  900-MHz multipath propagation measurements for US digital cellular radiotelephone , 1990 .

[6]  F. Ling,et al.  A generalized multichannel least squares lattice algorithm based on sequential processing stages , 1984 .

[7]  Lennart Ljung,et al.  Application of Fast Kalman Estimation to Adaptive Equalization , 1978, IEEE Trans. Commun..