Enhancing Optical-CDMA Confidentiality With Multicode-Keying Encryption

Optical codes with large cardinality and tree structures of multiple subsets of codewords for adjustable code performance and cardinality have recently been proposed. As studied in this paper, these characteristics support multicode-keying encryption for enhancing physical-layer confidentiality in o...

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Bibliographic Details
Published in:Journal of lightwave technology 2015-05, Vol.33 (9), p.1708-1718
Main Authors: Wen-Hao Chang, Guu-Chang Yang, Cheng-Yuan Chang, Kwong, Wing C.
Format: Article
Language:English
Subjects:
Confidentiality
Encryption
High-speed optical techniques
Logic gates
multicode keying
Optical pulses
Optical saturation
Optical switches
Semiconductor optical amplifiers
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Summary:Optical codes with large cardinality and tree structures of multiple subsets of codewords for adjustable code performance and cardinality have recently been proposed. As studied in this paper, these characteristics support multicode-keying encryption for enhancing physical-layer confidentiality in optical code-division multiple-access systems and networks. The concept of the multicode-keying encryption technique is introduced. The associated all-optical hardware is designed and validated with OptiSystem™ simulation. The theoretical analyses of confidentiality improvement by means of rapid codeword switching and multicode-keying encryption are formulated.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2015.2394792