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GSVD Beamforming for Two-User MIMO Downlink Channel

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2 Author(s)
Damith Senaratne ; Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada ; Chintha Tellambura

This paper introduces the fundamentals of generalized singular value decomposition (GSVD) beamforming: a noniterative beamforming technique based on GSVD for the two-user multiple-input-multiple-output (MIMO) downlink. The numbers of private/common channels produced by GSVD beamforming and transmit power normalization are investigated; the channel gains under Rayleigh fading are characterized exactly for configurations that involve only common channels. Moreover, symbol error rates (SERs) are presented for elementary multicasting and two-way relaying applications; the performance distinctions of the private/common channels and the effect of channel-estimation errors and asymmetries in channel fading are highlighted thereby.

Published in:

IEEE Transactions on Vehicular Technology  (Volume:62 ,  Issue: 6 )