Sorry, I don't understand your search. ×
Back to Search Start Over

Quantum version of MMSE-based massive MIMO uplink detection.

Quantum version of MMSE-based massive MIMO uplink detection.

Authors :
Ji, Yahui
Meng, Fanxu
Jin, Jiejun
Yu, Xutao
Zhang, Zaichen
You, Xiaohu
Zhang, Chuan
Source :
Quantum Information Processing. Feb2020, Vol. 19 Issue 2, p1-28. 28p.
Publication Year :
2020

Abstract

Regarding the massive multiple-input multiple-output (MIMO) uplink, the quantum version detection based on the minimum mean square error criterion is developed for complexity consideration. Specifically, a comprehensive quantum algorithm for encoding the estimated signal into a quantum state is presented, synthesizing the subroutines of state preparation, Hamiltonian simulation, phase estimation and so on. Indispensable assumptions along with the quantum algorithm are summarized and assumption testing in a MIMO scenario is conducted. Both theoretical analyses from the mathematical point of view and simulated realizations in massive MIMO systems basically confirm the applicability of the quantum algorithm. With desired precision, the quantum algorithm achieves almost quadratic speedup over all classical counterparts. Whereas, with weaker precision accompanied by undetermined performance loss, the quantum algorithm eventually breaks through polynomial-time detection complexity and achieves exponential speedup. Future work will be directed toward the error dependence improvement, classical form outputs and experimental applications in quantum communication systems. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15700755
Volume :
19
Issue :
2
Database :
Academic Search Index
Journal :
Quantum Information Processing
Publication Type :
Academic Journal
Accession number :
141339038
Full Text :
https://doi.org/10.1007/s11128-019-2547-4