International Journal of Computer Science & Network Security

International Journal of Computer Science & Network Security (국제컴퓨터통신보호논문지학회)
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A Proposed New Method of Direct Chaotic Communication Systems Using Adaptive Threshold and Experimental Implementations on FPAA

  • Kenan Altun (Sivas Vocational College, Cumhuriyet University) ;
  • Enis Gunay (Department of Electrical and Electronics Engineering, Erciyes University)
  • Received : 2024.10.05
  • Published : 2024.10.30
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Abstract

Communication systems where chaotic signals are used as carrier signals are called Direct Chaotic Communication (DCC). DCC systems have the disadvantage of low bit-error rate (BER) and signal to noise ratio (SNR) performance. The main reason for this disadvantage is that the DCC receiver circuits are constant in the decision block with the threshold voltage values. In this study, a new receiver circuit has been designed to increase BER / SNR performance in digital based DCC systems. According to this, the noise obtained in the receiver circuits of the communication systems is accepted as the dirac delta function. Then a decision block with two inputs is performed using the dirac delta function and the ramp function is obtained. The numerical and the experimental results of the study reveal that proposed model shows much better performance between %70 and %96.

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Acknowledgement

This work is supported by Research Fund of Erciyes University (Project Code: FDK-2016-6757).

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