A diversity guarantee and SNR performance for unitary limited feedback MIMO systems
EURASIP Journal on Advances in Signal Processing
Feedback quantization for linear precoded spatial multiplexing
EURASIP Journal on Advances in Signal Processing
EURASIP Journal on Advances in Signal Processing
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Optimized non-unitary linear precoding for orthogonal space-time block codes
IEEE Communications Letters
Bit-interleaved coded multiple beamforming with imperfect CSIT
IEEE Transactions on Communications
A new beamforming structure based on transmit-MRC for closed-loop MIMO systems
IEEE Transactions on Communications
Limited feedback beamforming over temporally-correlated channels
IEEE Transactions on Signal Processing
Kerdock codes for limited feedback precoded MIMO systems
IEEE Transactions on Signal Processing
IEEE Transactions on Wireless Communications
Joint beamforming for multiaccess MIMO systems with finite rate feedback
IEEE Transactions on Wireless Communications
Delay-optimal power and precoder adaptation for multi-stream MIMO systems
IEEE Transactions on Wireless Communications
Precoder partitioning in closed-loop MIMO systems
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Reduced feedback SDMA based on subspace packings
IEEE Transactions on Wireless Communications
Low complexity precoder design for delay sensitive multi-stream MIMO systems
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
A region-based downlink scheduling algorithm in MIMO precoding systems
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
WSEAS Transactions on Signal Processing
IEEE Transactions on Information Theory
Geodesical codebook design for precoded MIMO systems
IEEE Communications Letters
Performance of vector perturbation multiuser MIMO systems with limited feedback
IEEE Transactions on Communications
Limited feedback multiuser MIMO techniques for time-correlated channels
EURASIP Journal on Advances in Signal Processing - Multiuser MIMO Transmission with Limited Feedback, Cooperation, and Coordination
A fast encoding algorithm for a MIMO system with finite-bit feedback
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Limited feedback open loop precoding in the downlink relay multiuser MIMO system
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Capacity of a multiple-antenna fading channel with a quantized precoding matrix
IEEE Transactions on Information Theory
MIMO transceivers with decision feedback and bit loading: theory and optimization
IEEE Transactions on Signal Processing
A limited feedback joint precoding for amplify-and-forward relaying
IEEE Transactions on Signal Processing
A new THP precoding scheme with effective channel optimization
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
MIMO precoding with limited rate feedback: simple quantizers work well
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
A two-stage precoding method based on interference alignment for interference channel systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Simplified maximum-likelihood precoder selection for limited feedback spatial multiplexing systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Iterative limited feedback beamforming for MIMO ad-hoc networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Towards fully collaborative MIMO communication in cellular networks
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Link adaptation in linearly precoded closed-loop MIMO-OFDM systems with linear receivers
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Precoded spatial multiplexing systems in the presence of feedback delay using Kalman filter
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Event-driven optimal feedback control for multiantenna beamforming
IEEE Transactions on Signal Processing
Linear precoder designs for K-user interference channels
IEEE Transactions on Wireless Communications
MMSE based transceiver designs in closed-loop non-regenerative MIMO relaying systems
IEEE Transactions on Wireless Communications
Optimization of Feedback for Adaptive MIMO Transmissions Over Time Varying Channels
Wireless Personal Communications: An International Journal
IEEE Transactions on Communications
Comparison of practical feedback algorithms for multiuser MIMO
IEEE Transactions on Communications
Limited feedback for temporally correlated MIMO channels with other cell interference
IEEE Transactions on Signal Processing
A scalable limited feedback design for network MIMO using per-cell product codebook
IEEE Transactions on Wireless Communications
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Statistical Transceiver Designs with ICI Reduction for MIMO-OFDM Systems
Wireless Personal Communications: An International Journal
Hi-index | 754.98 |
Multiple-input multiple-output (MIMO) wireless systems use antenna arrays at both the transmitter and receiver to provide communication links with substantial diversity and capacity. Spatial multiplexing is a common space-time modulation technique for MIMO communication systems where independent information streams are sent over different transmit antennas. Unfortunately, spatial multiplexing is sensitive to ill-conditioning of the channel matrix. Precoding can improve the resilience of spatial multiplexing at the expense of full channel knowledge at the transmitter-which is often not realistic. This correspondence proposes a quantized precoding system where the optimal precoder is chosen from a finite codebook known to both receiver and transmitter. The index of the optimal precoder is conveyed from the receiver to the transmitter over a low-delay feedback link. Criteria are presented for selecting the optimal precoding matrix based on the error rate and mutual information for different receiver designs. Codebook design criteria are proposed for each selection criterion by minimizing a bound on the average distortion assuming a Rayleigh-fading matrix channel. The design criteria are shown to be equivalent to packing subspaces in the Grassmann manifold using the projection two-norm and Fubini-Study distances. Simulation results show that the proposed system outperforms antenna subset selection and performs close to optimal unitary precoding with a minimal amount of feedback.