Quantum detection and mutual information for QAM and PSK signals
Quantum detection and mutual information for QAM and PSK signals
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DOI：
10.1109/26.752130
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发表时间：
1999-02-01
影响因子：
8.3
通讯作者：
Hirota, O
中科院分区：
文献类型：
--
作者：
Kato, K;Osaki, M;Hirota, O
本文基于量子检测理论，分析了正交幅度调制（QAM）和相移键控系统的误码率和互信息性能。结果表明，量子接收机称为平方根测量给出了约5.7 dB的功率改进相比，经典的，此外，我们表明，量子QAM系统可以实现相同的可靠性与传统的强度调制-直接检测（IM-DD）系统几乎相同的功率，压缩所需的带宽，而可靠性一般下降。
In this paper, we analyze the performance of the error probability and the mutual information for quadrature amplitude modulation (QAM) and phase-shift keying systems based on quantum detection theory. It is shown that the quantum receiver called square root measurement gives about 5.7 dB improvement in power in comparison with the classical one, Furthermore, we show that the quantum QAM system can achieve the same reliability as the conventional intensity modulation-direct detection (IM-DD) system with almost equal power, compressing the required bandwidth, while the reliability is degraded in general.