Information Theory: Coding Theorems for Discrete Memoryless Systems
Information Theory: Coding Theorems for Discrete Memoryless Systems
Fundamentals of wireless communication
Fundamentals of wireless communication
Low Density Codes Achieve theRate-Distortion Bound
DCC '06 Proceedings of the Data Compression Conference
Elements of Information Theory (Wiley Series in Telecommunications and Signal Processing)
Elements of Information Theory (Wiley Series in Telecommunications and Signal Processing)
Predictive transmit beamforming for MIMO-OFDM in time-varying channels with limited feedback
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Limited feedback beamforming over temporally-correlated channels
IEEE Transactions on Signal Processing
On the entropy rate of hidden Markov processes observed through arbitrary memoryless channels
IEEE Transactions on Information Theory
Limited feedback for multi-carrier beamforming: a rate-distortion approach
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 1
Channel state feedback schemes for multiuser MIMO-OFDM downlink
IEEE Transactions on Communications
MIMO precoding with limited rate feedback: simple quantizers work well
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Fast transfer of channel state information in wireless systems
IEEE Transactions on Signal Processing
Interpolation-Based Multi-Mode Precoding for MIMO-OFDM Systems with Limited Feedback
IEEE Transactions on Wireless Communications
IEEE Transactions on Information Theory
Feedback Quantization Strategies for Multiuser Diversity Systems
IEEE Transactions on Information Theory
Opportunistic Downlink Transmission With Limited Feedback
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
An overview of limited feedback in wireless communication systems
IEEE Journal on Selected Areas in Communications
Limited feedback schemes for downlink OFDMA based on sub-channel groups
IEEE Journal on Selected Areas in Communications
Low complexity resource allocation with opportunistic feedback over downlink OFDMA networks
IEEE Journal on Selected Areas in Communications
Limited feedback for multi-carrier beamforming: a rate-distortion approach
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 1
Power-controlled feedback and training for two-way MIMO channels
IEEE Transactions on Information Theory
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The capacity of a fading channel can be substantially increased by feeding back channel state information from the receiver to the transmitter. If the feedback rate is limited, what state information to feed back and how to encode it are important questions. This paper studies power loading in a multicarrier system using no more than one bit of feedback per subchannel. The subchannels can be correlated and full channel state information is assumed at the receiver. First, a simple model with N parallel two-state (good/bad) memoryless subchannels is considered, where the channel state feedback is used to select a fixed number of subchannels to activate. The optimal feedback scheme is the solution to a vector quantization problem, and the associated performance for large N is characterized using a rate distortion function. As N increases, the loss in forward rate from the asymptotic (rate-distortion) value is shown to decrease as (log N)/N and √(log N)/N with optimal variable- and fixed-length feedback codes, respectively. These results are subsequently extended to parallel Rayleigh block fading subchannels, where the feedback designates a set of subchannels to be activated with equal power. Rate-distortion feedback codes are proposed for designating subsets of (good) subchannels with signal-to-noise ratios (SNRs) that exceed a threshold. The associated performance is compared with that of a simpler lossless source coding scheme, which designates groups of good subchannels, where both the group size and threshold are optimized. The rate-distortion codes can provide a significant increase in forward rate at low SNRs.