Vector quantization and signal compression
Vector quantization and signal compression
Matrix computations (3rd ed.)
The Geometry of Algorithms with Orthogonality Constraints
SIAM Journal on Matrix Analysis and Applications
Optimizing training lengths and training intervals in time-varying fading channels
IEEE Transactions on Signal Processing
Limited feedback beamforming over temporally-correlated channels
IEEE Transactions on Signal Processing
Progressive refinement of beamforming vectors for high-resolution limited feedback
EURASIP Journal on Advances in Signal Processing - Multiuser MIMO Transmission with Limited Feedback, Cooperation, and Coordination
A simple gradient sign algorithm for transmit antenna weight adaptation with feedback
IEEE Transactions on Signal Processing
Efficient feedback methods for MIMO channels based on parameterization
IEEE Transactions on Wireless Communications
Successive Transmit Beamforming Algorithms for Multiple-Antenna OFDM Systems
IEEE Transactions on Wireless Communications
MIMO Broadcast Channels With Finite-Rate Feedback
IEEE Transactions on Information Theory
Systematic Codebook Designs for Quantized Beamforming in Correlated MIMO Channels
IEEE Journal on Selected Areas in Communications
An overview of limited feedback in wireless communication systems
IEEE Journal on Selected Areas in Communications
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Limited feedback in multiple antenna wireless systems is a practical technique to obtain channel state information at the transmitter. When the channel is time-varying with memory, however, selected codeword may become outdated before its use at the transmitter. To overcome this problem, we propose a Grassmannian prediction and predictive coding framework for delayed feedback systems by exploiting the memory in the channel. A prediction step size optimization criterion for correlated time-series evolving on the Grassmann manifold is derived. The proposed predictive coding framework uses optimized prediction to account for the feedback delay. Application to delayed limited feedback multiuser multiple antenna system shows sum rate improvement and robustness to delay.