A chaos-based secure direct-sequence/spread-spectrum communication system
type: Item
instance of: scholarly article
title: A chaos-based secure direct-sequence/spread-spectrum communication system
zbMATH Open document ID: 1322.94004
DOI: 10.1155/2013/764341
author: Nguyen Xuan Quyen
author: Vu Van Yem
author: Thang Manh Hoang
published in: Abstract and Applied Analysis
publication date: 2013-05-08T00:00:00Z
review text: Summary: This paper proposes a chaos-based secure direct-sequence/spread-spectrum (DS/SS) communication system which is based on a novel combination of the conventional DS/SS and chaos techniques. In the proposed system, bit duration is varied according to a chaotic behavior but is always equal to a multiple of the fixed chip duration in the communication process. Data bits with variable duration are spectrum-spread by multiplying directly with a pseudonoise (PN) sequence and then modulated onto a sinusoidal carrier by means of binary phase-shift keying (BPSK). To recover exactly the data bits, the receiver needs an identical regeneration of not only the PN sequence but also the chaotic behavior, and hence data security is improved significantly. Structure and operation of the proposed system are analyzed in detail. Theoretical evaluation of bit-error rate (BER) performance in presence of additive white Gaussian noise (AWGN) is provided. Parameter choice for different cases of simulation is also considered. Simulation and theoretical results are shown to verify the reliability and feasibility of the proposed system. Security of the proposed system is also discussed.
Mathematics Subject Classification ID: 94A05
zbMATH DE Number: 6161372
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2013/764341
OpenAlex ID: W2027337831
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Wikidata QID: Q58917409
description: scientific article; zbMATH DE number 6161372