FIELD: information technology.
SUBSTANCE: multi-antenna transmission control presented herein involves generating a set of virtual channel realisations in a transmitter (10) which shares the same second-order statistics as the actual channel realisations observed for a targeted receiver (12). By making the control-related quantities of interest at the transmitter (10) depend on the long-term statistics of the channel, the actual channel realisations are not needed for transmission control, e.g., for accurate multiple-input/multiple-output (MIMO) precoding and the related modulation and coding choice.
EFFECT: use of virtual channel realisations enables transmission control which approaches the closed-loop channel capacity which would be provided by full feedback of the channel status information without requiring the overhead signalling burden which accompanies full feedback.
17 cl, 4 dwg
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