Performance Analysis of Multi-User Optical Steganography Transmission System Based on Filtered Amplified Spontaneous Emission Noise

Guorui Su,Yeteng Tan,Tao Pu,Jilin Zheng

doi:10.1109/access.2019.2955226

Abstract

We propose a multi-user optical steganography transmission system based on the filtered amplified spontaneous emission (ASE) noise for the first time. The stealth signal can be hidden in the public channel in the time and frequency domain. The proposed multi-user transmission system can improve the capacity of stealth channel through increasing the number of stealth users, in order to overcome the major limitation of the single stealth channel transmission based on the ASE noise. Meanwhile, system performance of optical steganography system is theoretically analyzed and simulation demonstrated. The signal-to-noise ratio (SNR) of the stealth channel and the public channel are derived and analyzed. The interaction between the public channel and the stealth channel is investigated based on bit rate, transmission distance, optical bandwidth of the stealth user, and power spectral density of the ASE noise, which can affect the capacity of the stealth channel. In addition, the additional layer security of the stealth channel is analyzed in the proposed multi-user optical steganography system, and simulation results show that this approach is efficient and the security of the stealth user can be guaranteed.

Highlights

With the increased accessibility of optical networks, it is more and more important to promise the security of the optical communication network
The carrier of the stealth channel is the amplified spontaneous emission (ASE) noise generated by Erbium doped fiber amplifier (EDFA), whose spectrum is widely existed in the optical networks
A piece of modulated ASE noise is filtered by the wavelength selective switch1 (WSS1), which can be regarded as the stealth spectrum for the stealth user

Summary

Introduction

With the increased accessibility of optical networks, it is more and more important to promise the security of the optical communication network. Simulation results show that different system parameters have influence on the capacity of the stealth channel, such as bit rate, transmission distance, optical bandwidth of the stealth user, and power spectral density of the ASE noise.

Results

Conclusion