Rotative quantization using adaptive range for temporally correlated MIMO channels

BE Godana, T Ekman - … on Personal, Indoor, and Mobile Radio …, 2013 - ieeexplore.ieee.org
The performance of multiple-input multiple-output (MIMO) systems can be enhanced with the
availability of channel direction information at the transmitter. One of the known techniques …

A reduced quantization range feedback method for time-varying MIMO systems

B Godana, T Ekman - 2011 7th International Wireless …, 2011 - ieeexplore.ieee.org
MIMO systems benefit from spatial multiplexing when channel state information (CSI) is
available at the transmitter. Givens decomposition of unitary matrices can be used to …

Parametrization based limited feedback design for correlated MIMO channels using new statistical models

BE Godana, T Ekman - IEEE transactions on wireless …, 2013 - ieeexplore.ieee.org
Parametrization of unitary matrices using Givens rotations has been used for limited
feedback in multiple-input multiple-output (MIMO) systems. Feedback based on these …

Differential feedback of MIMO channel correlation matrices based on geodesic curves

D Sacristán, A Pascual-Iserte - 2009 IEEE International …, 2009 - ieeexplore.ieee.org
This paper proposes a differential quantization strategy to be used in the feedback link of a
multi-input-multi-output (MIMO) communication system. This algorithm is applied to the …

Adaptive channel direction quantization for frequency selective channels

S Schwarz, M Rupp - 2012 Proceedings of the 20th European …, 2012 - ieeexplore.ieee.org
In this work, we consider the calculation of channel state information (CSI) feedback for
frequency selective OFDM based multiple input single output (MISO) wireless …

Efficient feedback methods for MIMO channels based on parameterization

JC Roh, BD Rao - IEEE Transactions on Wireless …, 2007 - ieeexplore.ieee.org
In this paper, we propose two efficient low-complexity quantization methods for multiple-
input multiple-output (MIMO) systems with finite-rate feedback based on proper …

Differential rotation feedback MIMO system for temporally correlated channels

T Kim, DJ Love, B Clerckx… - IEEE GLOBECOM 2008 …, 2008 - ieeexplore.ieee.org
In fading channels, multiple-input multiple-output (MIMO) wireless systems make use of the
spatial dimension of the channel to provide considerable capacity gain even when only …

Performance analysis of adaptive low rate differential CSI feedback for MIMO-OFDM systems

WH Chin, C Yuen - 2008 3rd International Symposium on …, 2008 - ieeexplore.ieee.org
In situations where the channels are fast changing, systems that require channel state
information at the transmitter would need frequent feedback from the receiver. Low rate …

Noncoherent trellis coded quantization: A practical limited feedback technique for massive MIMO systems

J Choi, Z Chance, DJ Love… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
Accurate channel state information (CSI) is essential for attaining beamforming gains in
single-user (SU) multiple-input multiple-output (MIMO) and multiplexing gains in multi-user …

Channel feedback quantization for high data rate MIMO systems

MA Sadrabadi, AK Khandani… - IEEE transactions on …, 2006 - ieeexplore.ieee.org
We study a multiple-input multiple-output (MIMO) wireless system where the channel state
information is partially available at the transmitter through a feedback link. Based on singular …