TY  - EJOU
AU  - Yu, Wenbin 
AU  - Xu, Yinsong 
AU  - Liu, Wenjie 
AU  - Liu, Alex Xiangyang 
AU  - Zheng, Baoyu 

TI  - Quantum Multi-User Detection Based on Coherent State Signals
T2  - Journal of Quantum Computing

PY  - 2019
VL  - 1
IS  - 2
SN  - 2579-0145

AB  - Multi-user detection is one of the important technical problems for modern communications. In the field of quantum communication, the multi-access channel on which we apply the technology of quantum information processing is still an open question. In this work, we investigate the multi-user detection problem based on the binary coherent-state signals whose communication way is supposed to be seen as a quantum channel. A binary phase shift keying model of this multi-access channel is studied and a novel method of quantum detection proposed according to the conclusion of the quantum measurement theory. As a result, the average interference between deferent users is presented and the average error probability of the quantum detection is derived theoretically. Finally, we show the maximum channel capacity of this effective detection for a two-access quantum channel
KW  - Multi-user detection
KW  -  multi-access channels
KW  -  quantum communication
KW  -  quantum information processing

DO  - 10.32604/jqc.2019.07324