Practical methods of optimization; (2nd ed.)
Practical methods of optimization; (2nd ed.)
Transmission Over Slowly Fading Channels Using Unreliable Quantized Feedback
DCC '07 Proceedings of the 2007 Data Compression Conference
Diversity-Multiplexing Tradeoff of MIMO Systems with Partial Power Control
IZS '06 Proceedings of the 2006 International Zurich Seminar on Communications
Combining beamforming and space-time coding using noisy quantized feedback
IEEE Transactions on Communications
Outage behavior of slow fading channels with power control using partial and erroneous CSIT
IEEE Transactions on Information Theory
Capacity of fading channels with channel side information
IEEE Transactions on Information Theory
Optimum power control over fading channels
IEEE Transactions on Information Theory
On coding for block fading channels
IEEE Transactions on Information Theory
Limiting performance of block-fading channels with multiple antennas
IEEE Transactions on Information Theory
A broadcast approach for a single-user slowly fading MIMO channel
IEEE Transactions on Information Theory
Quantized feedback information in orthogonal space-time block coding
IEEE Transactions on Information Theory
Throughput-Optimal Precoding and Rate Allocation for MISO Systems With Noisy Feedback Channels
IEEE Transactions on Information Theory
Outage behavior of slow fading channels with power control using partial and erroneous CSIT
IEEE Transactions on Information Theory
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We design a conceptual transmission scheme that adjusts rate and power of data codewords to send them over a slowly fading channel, when quantized and possibly erroneous channel state information (CSI) is available at the transmitter. The goal is to maximize the data throughput or the expected data rate using a multi-layer superposition coding technique and temporal power control at the transmitter. The main challenge here is to design a CSI quantizer structure for a noisy feedback link. This structure resembles conventional joint source and channel coding schemes, however, with a newly introduced quasi-gray bit-mapping. Our results show that with proper CSI quantizer design, even erroneous feedback can provide performance gains. Also, with an unreliable feedback link, superposition coding provides significant gains when feedback channel is poorly conditioned and channel uncertainty at the transmitter is severe, whereas power control is more effective with more reliable feedback.