[1] Shaneman K, Gray S. Optical network security: technical analysis of fiber tapping mechanisms and methods for detection & prevention. [C]∥IEEE MILCOM 2004. Military Communications Conference, 2004, October 31-November 3, 2004, Monterey, CA, USA. New York: IEEE, 711-716(2004).
[5] Deng F G, Long G L. Secure direct communication with a quantum one-time pad[J]. Physical Review A, 69, 052319(2004).
[6] Nair R, Yuen H P, Corndorf E et al. Quantum-noise randomized ciphers[J]. Physical Review A, 74, 052309(2006).
[7] Yoshida M, Hirooka T, Kasai K et al. Single-channel 40 Gbit/s digital coherent QAM quantum noise stream cipher transmission over 480 km[J]. Optics Express, 24, 652-661(2016).
[8] Nakazawa M, Yoshida M, Hirooka T et al. QAM quantum noise stream cipher transmission over 100 km with continuous variable quantum key distribution[J]. IEEE Journal of Quantum Electronics, 53, 1-16(2017).
[9] Sohma M, Hirota O. Coherent pulse position modulation quantum cipher[J]. Aip Conference Proceedings, 1633, 125-127(2014).
[10] Zhang G R. The research on physical-layer security of OCDAM system based on information theory[D]. Shenzhen: Shenzhen University, 20-26(2018).
[11] Mihaljevi M J. Generic framework for the secure Yuen 2000 quantum-encryption protocol employing the wire-tap channel approach[J]. Physical Review A, 75, 052334(2007).
[12] Tan Y T, Pu T, Zhou H et al. Performance analysis of physical-layer security in ISK quantum-noise randomized cipher based on wiretap channel[J]. Optics Communications, 461, 125151(2020).
[13] Jiao H S, Pu T, Xiang P et al. Physical-layer security analysis of PSK quantum-noise randomized cipher in optically amplified links[J]. Quantum Information Processing, 16, 189(2017).
[14] Jiao H S, Pu T, Zheng J L et al. Physical-layer security analysis of a quantum-noise randomized cipher based on the wire-tap channel model[J]. Optics Express, 25, 10947-10960(2017).
[15] Chen S, Xie C J, Zhang J. Adaptive quadrature-polybinary detection in super-Nyquist WDM systems[J]. Optics Express, 23, 7933-7939(2015).
[16] Yang X K, Zhang J, Li Y J et al. DFTS-OFDM based quantum noise stream cipher system[J]. Optical Fiber Technology, 52, 101939(2019).
[17] Yang X K, Zhang J, Li Y J et al. Single-carrier QAM/QNSC and PSK/QNSC transmission systems with bit-resolution limited DACs[J]. Optics Communications, 445, 29-35(2019).
[18] Jiang D[M]. Information theory & coding, 159-162(2008).