Inspec keywords: mobile antennas; antenna arrays; spatial filters; cellular radio; optimisation; cost reduction; least mean squares methods; array signal processing

Other keywords: spatial filtering; Kronecker-separable beamforming filter; Kronecker factors; sub-array minimum mean square error beamforming; massive bi-dimensional arrays; low-complexity signal-processing methods; future cellular systems; Tikhonov regularisation; massive antenna array systems; alternating optimisation; array gain; low-complexity separable beamformers; source recovery degradation; bi-dimensional array geometry; computational cost reduction

Subjects: Optimisation techniques; Filtering methods in signal processing; Antenna arrays; Mobile radio systems; Interpolation and function approximation (numerical analysis)