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TRANSMIT BEAMFORMING WITH SINGULAR VALUE DECOMPOSITION AND PRE MINIMUM MEAN SQUARE ERROR
TRANSMIT BEAMFORMING WITH SINGULAR VALUE DECOMPOSITION AND PRE MINIMUM MEAN SQUARE ERROR
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机译:具有奇异值分解和最小均方误差的透射变形
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摘要
Transmitting beamforming can steer a transmitting signal to reduce the interference between spaces of a MIMO system and achie ves constructive combination at the receiver. One method of steering matrix calculation includes us ing singular value decomposition (SVD). Notably the singular values of SVD which represent the stream strengths in a MIMO system are in descending order. In equal modulation signal strength degradation makes the receive EVM of the latest stream poor and increases the probability of packet error. MMSE can be used to weight the steering vectors of the steering matrix calculated in SVD. This weighting of the singular valu es can balance the SNR of the streams thereby improving packet error rate.
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