Hybrid Chaotic Confusion and Diffusion for Physical Layer Security in OFDM-PON

Physical layer security is of key interest for secure passive optical networks (PONs). We propose a hybrid chaotic confusion and diffusion (HCCD)-based encryption method for physical layer security enhancement in optical orthogonal frequency division multiplexed PONs (OFDM-PONs). Here, the real (I) and imaginary (Q) parts of OFDM symbols are separately scrambled by using different permutations before performing inverse fast Fourier transform. This scheme can realize that the transmitted quadrature amplitude modulation (QAM) symbols and the symbol-to-subcarrier mapping are simultaneously changed and disrupted. The scrambling permutations are generated by an improved logistic map, whose iteration parameters are set as the security keys. 11.3-Gb/s 16 QAM and 14.1-Gb/s 32 QAM IQ scrambled OFDM signals have been successfully transmitted over 25-km standard single mode fiber in an experimental demonstration. The scrambling performance and the security of the proposed encryption scheme are further analyzed. The obtained experimental and numerical results show that the proposed HCCD-based encryption scheme has excellent resistance to illegal optical network units.

[1]  Chen Zengqiang,et al.  A Chaotic Images Encryption Algorithm with the Key Mixing Proportion Factor , 2008, 2008 International Conference on Information Management, Innovation Management and Industrial Engineering.

[2]  Leonid G. Kazovsky,et al.  OPN01-6: Enabling Security Countermeasure and Service Restoration in Passive Optical Networks , 2006, IEEE Globecom 2006.

[3]  Wei Jin,et al.  Scalable and Reconfigurable All-Optical VPN for OFDM-Based Metro-Access Integrated Network , 2014, Journal of Lightwave Technology.

[4]  A. Dascalescu,et al.  A novel fast chaos-based algorithm for generating random permutations with high shift factor suitable for image scrambling , 2013, Nonlinear Dynamics.

[5]  Ming Tang,et al.  Secure OFDM-PON System Based on Chaos and Fractional Fourier Transform Techniques , 2014, Journal of Lightwave Technology.

[6]  Neda Cvijetic.  OFDM for next generation optical access networks , 2011 .

[7]  Kun Qiu,et al.  Secure passive optical network based on chaos synchronization. , 2012, Optics letters.

[8]  D. Liu,et al.  Enhanced Secure Strategy for OFDM-PON System by Using Hyperchaotic System and Fractional Fourier Transformation , 2014, IEEE Photonics Journal.

[9]  Deming Liu,et al.  Tunable optical frequency comb enabled scalable and cost-effective multiuser orthogonal frequency-division multiple access passive optical network with source-free optical network units. , 2012, Optics letters.

[10]  Xiangjun Xin,et al.  Piecewise Chaotic Permutation Method for Physical Layer Security in OFDM-PON , 2016, IEEE Photonics Technology Letters.

[11]  Deming Liu,et al.  Metro-access integrated network based on optical OFDMA with dynamic sub-carrier allocation and power distribution. , 2013, Optics express.

[12]  Qi Zhang,et al.  Theory and Performance Analyses in Secure CO-OFDM Transmission System Based on Two-Dimensional Permutation , 2013, Journal of Lightwave Technology.

[13]  Bo Liu,et al.  Secure coherent optical multi-carrier system with four-dimensional modulation space and Stokes vector scrambling. , 2015, Optics letters.

[14]  Maria C. Yuang,et al.  A High-Performance OFDMA PON System Architecture and Medium Access Control , 2012, Journal of Lightwave Technology.

[15]  Wei Zhang,et al.  Joint PAPR Reduction and Physical Layer Security Enhancement in OFDMA-PON , 2016, IEEE Photonics Technology Letters.

[16]  Adonis Bogris,et al.  Chaos-based communications at high bit rates using commercial fibre-optic links , 2006, SPIE/OSA/IEEE Asia Communications and Photonics.

[17]  Jiayang Wu,et al.  Physical Layer Encryption in OFDM-PON Employing Time-Variable Keys From ONUs , 2014, IEEE Photonics Journal.

[18]  Wei Zhang,et al.  Chaos Coding-Based QAM IQ-Encryption for Improved Security in OFDMA-PON , 2014, IEEE Photonics Technology Letters.

[19]  Klaus Grobe,et al.  Physical layer aspects of NG-PON2 standards–Part 2: System design and technology feasibility [Invited] , 2016, IEEE/OSA Journal of Optical Communications and Networking.