Paper Info
Title
Transmission Over Slowly Fading Channels Using Unreliable Quantized Feedback
Abstract
We study the problem of maximizing the expected rate over a slowly fading channel with quantized channel state information at the transmitter (CSIT). This problem has been recently studied in the literature assuming a noiseless feedback link. In this work, we consider a more realistic model, where the feedback link suffers from fading, as well as the limited power allocated to the feedback signals. Our scheme considers a finite-state model to capture the fading in the feedback link. We solve the rate maximization problem with different power control strategies at the transmitter. A channel optimized sealer quantizer (COSQ) is designed to incorporate feedback in our transmission scheme. Unlike the conventional COSQs where the objective is to reconstruct the source, our proposed quantizer is designed to optimize the expected rate of the forward link. For a high quality feedback channel, the proposed system performs close to the noiseless feedback case, while its performance converges to the no-feedback scenario as the feedback channel quality degrades
Year
DOI
Venue
2007
10.1109/DCC.2007.78
Snowbird, UT
Keywords
Field
DocType
fading channels,power control,radio transmitters,telecommunication control,channel optimized sealer quantizer,finite-state model,noiseless feedback case,noiseless feedback link,power control strategies,quantized channel state information at the transmitter,rate maximization problem,slowly fading channels,transmission scheme,unreliable quantized feedback
Transmitter,Fading,Control theory,Computer science,Power control,Communication channel,Quantization (physics),Quantization (signal processing),Maximization,Channel state information
Conference
ISSN
ISBN
Citations 
1068-0314
0-7695-2791-4
19
PageRank 
References 
Authors
0.91
13
3
Name
Order
Citations
PageRank
Siavash Ekbatani1936.16
F. Etemadi213110.32
Hamid Jafarkhani37037695.30