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Variational Quantum Compressed Sensing for Joint User and Channel State Acquisition in Grant-Free Device Access Systems. (arXiv:2205.08603v1 [eess.SP])
May 19, 2022, 1:11 a.m. | Bryan Liu, Toshiaki Koike-Akino, Ye Wang, Kieran Parsons
cs.LG updates on arXiv.org arxiv.org
This paper introduces a new quantum computing framework integrated with a
two-step compressed sensing technique, applied to a joint channel estimation
and user identification problem. We propose a variational quantum circuit (VQC)
design as a new denoising solution. For a practical grant-free communications
system having correlated device activities, variational quantum parameters for
Pauli rotation gates in the proposed VQC system are optimized to facilitate to
the non-linear estimation. Numerical results show that the VQC method can
outperform modern compressed sensing …
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