A Novel Design of CDSK Receiver for Improving the BER Performance 


Vol. 38,  No. 8, pp. 638-643, Aug.  2013


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  Abstract

Chaos communication system has a sensitive characteristic to initial conditions, because completely another signal is generated when initial condition of chaos equation is changed subtly. Also, chaos communication systems have the characteristics of non-periodic, non-predictability, the broadband signal, such as ease of implementation. Due to these characteristics, security of chaos communication system generally is evaluated better than other systems. However, BER(Bit Error Rate) performance is evaluated worse than other digital system, because existing chaos communication system"s transmitter and receiver are strong influence by interference signal and noise. So, research to improve the BER performance of the chaotic communication system is performed continuously. In this paper, We will propose a new CDSK(Correlation Delay Shift Keying) receiver for BER performance improvement. After we compare to the performance of existing CDSK receiver and proposed CDSK receiver, BER performance of proposed CDSK receiver evaluate. Also, when using the new CDSK receiver, we evaluate the BER performance according to the spreading factors and find an optimum spreading factor. If chaos communication system use a new CDSK receiver, BER performance is improved than existing CDSK receiver. Also, if spreading factor"s value is increased, BER performance is improved, because it is not nearly affected by interference signal and noise.

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  Cite this article

[IEEE Style]

J. Lee and H. Ryu, "A Novel Design of CDSK Receiver for Improving the BER Performance," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 8, pp. 638-643, 2013. DOI: .

[ACM Style]

Jun-Hyun Lee and Heung-Gyoon Ryu. 2013. A Novel Design of CDSK Receiver for Improving the BER Performance. The Journal of Korean Institute of Communications and Information Sciences, 38, 8, (2013), 638-643. DOI: .

[KICS Style]

Jun-Hyun Lee and Heung-Gyoon Ryu, "A Novel Design of CDSK Receiver for Improving the BER Performance," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 8, pp. 638-643, 8. 2013.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880