Imperial College London
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ProfessorBrunoClerckx

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Wireless Communications and Signal Processing
 
 
 
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Contact

 

+44 (0)20 7594 6234b.clerckx Website

 
 
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Location

 

816Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rizzello:2023:10.1109/LWC.2023.3301992,
author = {Rizzello, V and Nerini, M and Joham, M and Clerckx, B and Utschick, W},
doi = {10.1109/LWC.2023.3301992},
journal = {IEEE Wireless Communications Letters},
pages = {1956--1960},
title = {User-Driven Adaptive CSI Feedback With Ordered Vector Quantization},
url = {http://dx.doi.org/10.1109/LWC.2023.3301992},
volume = {12},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We propose a user-driven method for adaptive quantization and feedback of channel state information (CSI) in frequency division duplexing systems. The approach can be combined with existing autoencoder neural networks and requires only a single codebook shared between the users and the base station. Users can provide feedback with different numbers of bits depending on their data rates, without system changes or additional storage requirements. We optimize CSI feedback by combining the nested dropout layer with vector quantization, resulting in a variable-length feedback approach. Simulation results show the proposed method outperforms state-of-the-art schemes in dynamically adapting to different feedback rates.
AU  - Rizzello,V
AU  - Nerini,M
AU  - Joham,M
AU  - Clerckx,B
AU  - Utschick,W
DO  - 10.1109/LWC.2023.3301992
EP  - 1960
PY  - 2023///
SN  - 2162-2337
SP  - 1956
TI  - User-Driven Adaptive CSI Feedback With Ordered Vector Quantization
T2  - IEEE Wireless Communications Letters
UR  - http://dx.doi.org/10.1109/LWC.2023.3301992
VL  - 12
ER  -
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