On generating binary spatiotemporal chaotic sequences and its application on spread-spectrum communications
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Abstract
A code generator is designed based on a one-way coupled map lattice (OCML) system, and application of the generated binary spatiotemporal chaotic sequences on baseband spread spectrum communication is investigated. Random characters and the correlation properties of quantized signals are discussed, and error performance in communication is analyzed. It is shown that these sequences not only possess extremely high security in comparison with both conventional sequences and earlier chaotic communication schemes, but also show good performance on the Bit Error Rate (BER). The system also has the advantages of fast code generating speed and ease of synchronization, and is capable of supplying large amount of sequences. © World Scientific Publishing Company.
Keywords
Chaos synchronization, Spatiotemporal chaos, Spreading spectrum communication
Source Title
International Journal of Bifurcation and Chaos
Publisher
Series/Report No.
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Date
2006-01
DOI
10.1142/S0218127406014745
Type
Article