A Chaos-Based Secure Direct-Sequence/Spread-Spectrum Communication System

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.

[1]  R. Schoolcraft.  Low probability of detection communications-LPD waveform design and detection techniques , 1991, MILCOM 91 - Conference record.

[2]  N. G. Newton.  Applications to telecommunications , 1992 .

[3]  Chi K. Tse,et al.  Chaos-Based Digital Communication Systems: Operating Principles, Analysis Methods, and Performance Evaluation , 2003 .

[4]  Robert L. Frank,et al.  Phase shift pulse codes with good periodic correlation properties (Corresp.) , 1962, IRE Trans. Inf. Theory.

[5]  D. Lathrop.  Nonlinear Dynamics and Chaos: With Applications to Physics, Biology, Chemistry, and Engineering , 2015 .

[6]  G. Heidari-Bateni,et al.  Chaotic sequences for spread spectrum: an alternative to PN-sequences , 1992, 1992 IEEE International Conference on Selected Topics in Wireless Communications.

[7]  Fedor Mitschke,et al.  Applications in Telecommunications , 2009 .

[8]  R. C. Heimiller,et al.  Phase shift pulse codes with good periodic correlation properties , 1961, IRE Trans. Inf. Theory.

[9]  Bijan Jabbari,et al.  Spreading codes for direct sequence CDMA and wideband CDMA cellular networks , 1998, IEEE Commun. Mag..

[10]  Sadasivan Puthusserypady,et al.  Performance enhancement of DS/CDMA system using chaotic complex spreading sequence , 2005, IEEE Transactions on Wireless Communications.

[11]  Roger L. Peterson,et al.  Introduction to Spread Spectrum Communications , 1995 .

[12]  M. Pursley,et al.  Performance Evaluation for Phase-Coded Spread-Spectrum Multiple-Access Communication - Part I: System Analysis , 1977, IEEE Transactions on Communications.

[13]  John G. Proakis,et al.  Digital Communications , 1983 .

[14]  Olivier Berder,et al.  Detection of direct sequence spread spectrum transmissions without prior knowledge , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[15]  Kevin M. Short,et al.  UNMASKING A MODULATED CHAOTIC COMMUNICATIONS SCHEME , 1996 .

[16]  James S. Lehnert,et al.  Bit-to-bit error dependence in slotted DS/SSMA packet systems with random signature sequences , 1989, IEEE Trans. Commun..

[17]  Laurence B. Milstein,et al.  Spread-Spectrum Communications , 1983 .

[18]  D. E. Reed.  Comparison of symbol-rate detector and radiometer intercept receiver performances in a nonstationary environment , 1989, IEEE Military Communications Conference, 'Bridging the Gap. Interoperability, Survivability, Security'.

[19]  Robert C. Hilborn,et al.  Chaos And Nonlinear Dynamics: An Introduction for Scientists and Engineers , 1994 .

[20]  Julien Clinton Sprott,et al.  Chaos and Nonlinear Dynamics: An Introduction for Scientists and Engineers , 1994 .

[21]  M.B. Pursley,et al.  Crosscorrelation properties of pseudorandom and related sequences , 1980, Proceedings of the IEEE.

[22]  G. Álvarez,et al.  Breaking parameter modulated chaotic secure communication system , 2003, nlin/0311041.

[23]  W. Schwarz,et al.  Chaos communications-principles, schemes, and system analysis , 2002, Proc. IEEE.

[24]  Mohamed I. Sobhy,et al.  Methods of attacking chaotic encryption and countermeasures , 2001, 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221).

[25]  Robin Dillard.  Detectability of Spread-Spectrum Signals , 1979, IEEE Transactions on Aerospace and Electronic Systems.

[26]  Jack M. Holtzman,et al.  A simple, accurate method to calculate spread-spectrum multiple-access error probabilities , 1992, IEEE Trans. Commun..

[27]  Clare D. McGillem,et al.  A chaotic direct-sequence spread-spectrum communication system , 1994, IEEE Trans. Commun..

[28]  H. Schuster.  Deterministic chaos: An introduction , 1984 .

[29]  Riccardo Rovatti,et al.  Chaotic Electronics in Telecommunications , 2000 .

[30]  Kevin M. Short,et al.  Steps Toward Unmasking Secure Communications , 1994 .