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Title |
A Proposed New Method of Direct Chaotic Communication Systems Using Adaptive Threshold and Experimental Implementations on FPAA |
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Author |
Kenan Altun and Enis G?nay |
| Citation |
Vol. 24 No. 10 pp. 53-62 |
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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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Keywords |
Direct chaotic communication system, Field Programmable Analog Arrays, Bit Error Rate. |
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