Message encoding and decoding through chaos modulation in chaotic optical communications

TitleMessage encoding and decoding through chaos modulation in chaotic optical communications
Publication TypeJournal Article
Year of Publication2002
AuthorsTang, S., H. F. Chen, S. K. Hwang, and J. M. Liu
JournalCircuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
Pagination163 -169
Date Publishedfeb.
Keywordsbifurcation, bit error rate, channel noise effect, chaos generators, chaos modulation, chaotic dynamics, chaotic optical communications, complexity, correlation dimension, cryptography, decoding, delayed optoelectronic feedback system, message decoding, message encoding, modulation coding, optical communication, optical feedback, optical injection system, period-doubling route, quasi-periodicity, secure communications, Semiconductor lasers, signal-to-noise ratio, synchronisation, synchronization quality, telecommunication security

Chaos modulation for message encoding and decoding is investigated using two chaotic optical communication systems. With a message injected into the chaotic dynamics of the transmitter in chaos modulation, the complexity of the chaos is found to increase. Meanwhile, the synchronization quality is not influenced by the message encoding. The effect of channel noise is investigated and the bit error rate is calculated as a function of the signal-to-noise ratio for both systems


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