Robust Downlink Transmit Optimization Under Quantized Channel Feedback via the Strong Duality for QCQP
Robust Downlink Transmit Optimization Under Quantized Channel Feedback via the Strong Duality for QCQP
Consider a robust multiple-input single-output downlink beamforming optimization problem in a frequency division duplexing system. The base station (BS) sends training signals to the users, and every user estimates the channel coefficients, quantizes the gain and the direction of the estimated channel and sends them back to the BS. Suppose …