Donald Grieco

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A salient advantage of single carrier frequency division multiple access (SC-FDMA) is low peak-to-average power ratio (PAPR) which is lower than that of OFDMA. Precoding using transmit beamforming (TxBF) is a MIMO spatial multiplexing method that increases the data throughput significantly. However, when applied to SC-FDMA, it increases the PAPR. In this(More)
Zero-forcing (ZF) beamforming, an efficient technique for multiuser MIMO systems, requires perfect channel state information to be available at the base station. This is achieved by quantizing the channel and feeding back the information with a limited number of bits. A challenge of this method is the large downlink signaling overhead, which is due to the(More)
For time division duplex synchronous code division multiple access (TD-SCDMA) systems [l], conventional matched filter receivers suffer severe degradation in frequency-selective fading channels because of s ipf icant multiple access and inter-symbol interference. For such systems, efficient data detection algorithms such as multi-user detection (MUD) [2](More)
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