Matrix computations (3rd ed.)
An efficient square-root algorithm for BLAST
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 02
LTE for 4G Mobile Broadband: Air Interface Technologies and Performance
LTE for 4G Mobile Broadband: Air Interface Technologies and Performance
Low-complexity systolic V-BLAST architecture
IEEE Transactions on Wireless Communications
Linear processing and sum throughput in the multiuser MIMO downlink?
IEEE Transactions on Wireless Communications
QRD-based precoded MIMO-OFDM systems with reduced feedback
IEEE Transactions on Communications
Analysis of receiver algorithms for LTE SC-FDMA based uplink MIMO systems
IEEE Transactions on Wireless Communications
Coordinated multipoint transmission/reception techniques for LTE-advanced
IEEE Wireless Communications
Multimode precoding for MIMO wireless systems
IEEE Transactions on Signal Processing - Part I
Joint transceiver design for MIMO communications using geometric mean decomposition
IEEE Transactions on Signal Processing - Part I
Cooperative Feedback for Multiantenna Cognitive Radio Networks
IEEE Transactions on Signal Processing
Interpolation-Based Multi-Mode Precoding for MIMO-OFDM Systems with Limited Feedback
IEEE Transactions on Wireless Communications
Double proportional fair user pairing algorithm for uplink virtual MIMO systems
IEEE Transactions on Wireless Communications
Grassmannian beamforming for multiple-input multiple-output wireless systems
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Algorithm and implementation of the K-best sphere decoding for MIMO detection
IEEE Journal on Selected Areas in Communications
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This paper proposes QR-based criteria for efficient selection of multi-mode precoders in multi-user multiple-input multiple-output (MU-MIMO) precoded systems with a limited feedback. In particular, a MU-MIMO QR based precoding scheme is developed which takes advantage of the overall precoder design among users in conjunction with QR detection. A selection criterion is developed to identify the precoder that yields the maximum free distance. Efficient mode selection and tree search strategies are adopted to reduce the complexity associated with the identification of the optimum precoder. To further improve the detection performance in correlated channels, an efficient QR-based MMSE V-BLAST detector is proposed. Computer simulations confirm that the proposed QR-based precoding scheme attains the performance of existing schemes with a significantly lower complexity level.