Abstract

A physical layer enhanced secure future generation passive optical network (PON) based on chaotic signal scrambling and the secure hash algorithm (SHA) is proposed and demonstrated. In this paper, the architecture of a wavelength-division multiplexed orthogonal frequency division multiplexing (OFDM) PON system based on a centralized light source using direct detection is analyzed. A logistic chaos map is employed here for the scrambling of OFDM symbols in the frequency and time domains. Before transmitting the signal over optical fiber, a message-digest of scrambled and descrambled OFDM signals is computed and compared at the optical line terminal and optical network unit, respectively, to verify the actual data recovered. For the downstream channel, a 10 Gbps 32 quadrature amplitude modulation OFDM signal is successfully transmitted over a distance of 50 km single-mode fiber within the limits of the peak-to-average-power value. The results show that the proposed scheme can protect the system from bad actors and eavesdroppers, while chaos encryption with SHA-2 provides a robust and promising secure strategy for future-generation PON systems.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Time–Frequency Domain Encryption With SLM Scheme for Physical-Layer Security in an OFDM-PON System

Yaoqiang Xiao, Zhiyi Wang, Jun Cao, Rui Deng, Yi Liu, Jing He, and Lin Chen
J. Opt. Commun. Netw. 10(1) 46-51 (2018)

Physical secure enhancement in optical OFDMA-PON based on two-dimensional scrambling

Lijia Zhang, Xiangjun Xin, Bo Liu, and Xiaoli Yin
Opt. Express 20(26) B32-B37 (2012)

Physical-enhanced secure strategy in an OFDM-PON

Lijia Zhang, Xiangjun Xin, Bo Liu, and Jianjun Yu
Opt. Express 20(3) 2255-2265 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription