A diversity guarantee and SNR performance for unitary limited feedback MIMO systems
EURASIP Journal on Advances in 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
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
| Hi-index | 35.69 |
The problem of quantization in an Euclidean space with unitary constraints can be formulated as an unconstrained problem on a Grassmann manifold. Such constraints arise in areas such as wireless communication with multiple antennas at the transmitter and at the receiver. Due to the constraints, the distortion rate analysis developed for Euclidean spaces cannot be applied directly. This paper extends Gersho's asymptotic (large rate, small distortion) distortion bounds to the case when the source is distributed on the complex Grassmann manifold. The special structure of the Grassmann manifold and the distortion measures defined on it differentiate this problem from the traditional vector quantization in Euclidean spaces.