A 7-D Hyperchaotic System-Based Encryption Scheme for Secure Fast-OFDM-PON
Publication in refereed journal

香港中文大學研究人員
替代計量分析
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其它資訊
摘要In this paper, we propose and experimentally demonstrate a novel two-step I/Q-encryption scheme for improving physical layer security in fast orthogonal frequency division multiplexing passive optical network (fast-OFDM-PON). To meet the requirement of this encryption scheme and further enhance the security, a seven-dimensional hyperchaotic system with five positive Lyapunov exponents is designed. In this system, Walsh-Hadamard transform and discrete cosine transform are chosen to reduce the computation complexity and increase the key space simultaneously. An optional discrete Fourier transform spread is required to achieve the maximum scrambling degree. Encryption of 9.4-Gb/s 16-quadrature amplitude modulation fast-OFDM signals with a total key space of ~10 788 against the exhaustive trial has been successfully implemented over 50-km standard single mode fiber in a fast-OFDM-PON, which shows good resistance against illegal access to optical network units. All the results indicate that this proposed encryption scheme has improved security performance with relatively low computation complexity.
著者Zhouyi HU, Chun-Kit CHAN
期刊名稱Journal of Lightwave Technology
出版年份2018
月份8
日期15
卷號36
期次16
出版社IEEE
出版地USA
頁次3373 - 3381
國際標準期刊號0733-8724
電子國際標準期刊號1558-2213
語言美式英語
關鍵詞optical communications

上次更新時間 2020-25-05 於 00:26