Reference flipped-differential chaos ‎shift keying scheme for chaos- based ‎communications

  • Authors

    • Nizar N. Albassam Department of electronics and CommunicationsMiddle East CollegeMuscat/Oman
    2015-04-12
    https://doi.org/10.14419/ijet.v4i2.4014
  • Chaotic Communication, Differential Chaos, Correlation Delay, Crosscorelation, Noncoherent.

  • In this paper, a new differential coherent chaos-based communication system is proposed and named Reference Flipped-DCSK (RF-DCSK). By utilizing the low correlation value between a chaotic segment and its flipped version, each transmitted signal will be the sum of the information bearing signal and the mirrored version of the reference signal. This enhances the bandwidth efficiency of DCSK by doubling bits rate. Additionally, noise performance is improved at typical values of the spreading factor. According to Gaussian approximation method, theoretical expression for Bit-Error-Rate (BER) is derived. The proposed scheme is simulated and compared with Differential Chaos Shift Keying (DCSK), Correlation Delay Shift Key (CDSK) and High Efficiency -Differential Chaos Shift Keying (HE-DCSK) schemes in Additive White Gaussian Noise (AWGN) environment. Effect of spreading factor is studied. Results show that the proposed scheme clearly outperforms other systems.

  • References

    1. [1] Kennedy MP, Chua LO., "The Role of Synchronization in Digital Communications Using Chaos — Part II : Chaotic Modulation and Chaotic Synchronization", IEEE Trans Circuits Syst I Fundam Theory Appl, Vol. 45, No.11, (1998), pp.1129-1140. http://dx.doi.org/10.1109/81.735435.

      [2] G. KolumbPn, B. Vizvki, W. Schwarz and A. Abel, "Differential chaos shift keying: A robust coding for chaotic communication", Proceedings of the NDES, (1996), pp.87-92.

      [3] M. Sushchik, L. S. Tsimring, and a. R. Volkovskii, “Performance analysis of correlation-based communication schemes utilizing chaos ", IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications,Vol. 47, No.12, (2000), pp.1684-1691. http://dx.doi.org/10.1109/81.899920.

      [4] G. Kolumban, Z. Jako, and M. P. Kennedy, “Enhanced versions of DCSK and FM-DCSK data transmission systems", Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI, Vol.4, (1999), pp.475-478.

      [5] W. M. Tam, F. C. M. Lau, S. Member, and C. K. Tse, " A Multiple Access Scheme for Chaos-Based Digital Communication Systems Utilizing Transmitted Reference ", Vol. 51, No.9, (2004), pp.1868-1878.

      [6] H. Yang and G.-P. Jiang, "High-Efficiency Differential-Chaos-Shift-Keying Scheme for Chaos-Based Noncoherent Communication ", IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 59, No.5, (2012), pp.312-316. http://dx.doi.org/10.1109/TCSII.2012.2190859.

      [7] H. Yang and G.-P. Jiang, " Reference-Modulated DCSK: A Novel Chaotic Communication Scheme ", IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 60, No.4, (2013), pp.232-236. http://dx.doi.org/10.1109/TCSII.2013.2251949.

      [8] W. K. Xu and L. Wang, “A novel differential chaos shift keying modulation scheme ", Int. J. Bifurcation Chaos, Vol. 21, No.3, (2011), pp.799-814. http://dx.doi.org/10.1142/S0218127411028829.

      [9] Kaddoum G, Gagnon F. Design of a High-Data-Rate Differential Chaos-Shift Keying System, " IEEE Trans Circuits Syst II Express Briefs ", Vol. 59, No.7, (2012), pp.448-452. http://dx.doi.org/10.1109/TCSII.2012.2198982.

      [10] M. Xu and H. Leung,"A Novel High Data Rate Modulation Scheme Based on Chaotic Signal Separation", IEEE Transactions on Communications, Vol. 58, No.10, (2010), pp.2855-2860. http://dx.doi.org/10.1109/TCOMM.2010.10.080336.

      [11] G. Kaddoum, F.-D. Richardson, and F. Gagnon," Design and Analysis of a Multi-Carrier Differential Chaos Shift Keying Communication System," IEEE Transactions on Communications", IEEE Transactions on Communications, Vol. 61, No.8, (2013), pp.3281-3291. http://dx.doi.org/10.1109/TCOMM.2013.071013.130225.

      [12] P. Chen, L. Wang, S., and F. C. M. Lau, “One Analog STBC-DCSK Transmission Scheme not requiring Channel State Information", IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 60, No.4, (1998), pp.1027-1037. http://dx.doi.org/10.1109/TCSI.2012.2209304.

      [13] Cheong KY, Lau FCM, Tse CK," Permutation-Based M-ary Chaotic-Sequence Spread-Spectrum Communication Systems ", Syst Signal Process, Vol. 22, No.6, (2003), pp.567-577. http://dx.doi.org/10.1007/s00034-003-1018-3.

      [14] Lau FCM, Member S, Cheong KY," Permutation-Based DCSK and Multiple-Access DCSK Systems ", IEEE Trans Circuits Syst I Fundam Theory Appl, Vol. 50, No.6, (2003), pp.733-742. http://dx.doi.org/10.1109/TCSI.2003.812616.

      [15] Kaddoum G, Olivain J, Beaufort Samson G, Giard P, Gagnon F," Implementation of Differential Chaos Shift Keying communication system in GNU radio ", Proceedings of the Int Symp Wirel Commun Syst. IEEE, (2012), pp.934-938.

      [16] Azzaz MS, Tanougast C, Sadoudi S, Fellah R, Dandache A," A new auto-switched chaotic system and its FPGA implementation", Communications in Nonlinear Science and Numerical Simulation. Vol. 18, No.7, (2013), pp.1792–1804. http://dx.doi.org/10.1016/j.cnsns.2012.11.025.

      [17] N. I. Chernov "Limit theorems and Markov approximations for chaotic dynamical systems", Prob. Theory Relat. Fields, Vol. 101, No.3, (1995), pp.321-362. http://dx.doi.org/10.1007/BF01200500.

  • Downloads

  • How to Cite

    N. Albassam, N. (2015). Reference flipped-differential chaos ‎shift keying scheme for chaos- based ‎communications. International Journal of Engineering & Technology, 4(2), 320-326. https://doi.org/10.14419/ijet.v4i2.4014