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The investigation of transmission capacity of MIMO mobile communication system designed on principles of multipath effect has been carried out. Spatial encoding is realized by the beamforming method. Power distribution along transmit and receive antennas is specified by the principle of “water-filling”.
We investigate the problem of downlink user scheduling in multiple-input multiple-output (MIMO) systems with M transmit antennas and K homogeneous multiantenna receiving users. We develop a simple algorithm to schedule a subset of M active users for data transmission. We first identify a set of L candidate users that should provide channel information feedback. We then select M active users among...
The problem of dirty paper coding (DPC) over the fading dirty paper channel (FDPC) Y=H(X+S)+Z, a more general version of Costa's channel, is studied for the case in which there is partial and perfect knowledge of the fading process H at the transmitter (CSIT) and the receiver (CSIR), respectively. A key step in this problem is to determine the optimal inflation factor (under Costa's choice of auxiliary...
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