Performance of DCSK under the Coexistence of non-Chaotic Transmit Reference System 


Vol. 32,  No. 11, pp. 1138-1145, Nov.  2007


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  Abstract

In wireless communications, chaotic communications have been a field of interest due to its low complexity in hardware implementation and low power consumption in chaotic signal generation. Among the modulation schemes using the chaotic signal, Differential Chaos Shift Keying (DCSK) is a robust non coherent technique. As in the conventional communication systems, chaos-based systems are required to provide reasonable bit error performance in the presence of a narrow-band signal coming from any other systems. The frequency band of this foreign narrow band signal may lie within the bandwidth of the chaos-based systems. This situation may occur when chaotic signal transmission is done in the presence of other conventional communication system. This paper has evaluated the performance of the non coherent differential chaos shift keying (DCSK) system under the presence of conventional non-chaotic transmit reference system. Both systems are assumed to have same data rates. The mathematical expressions for the bit error rate (BER) are derived with computer simulations to verify the analytical results.

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  Cite this article

[IEEE Style]

K. Thapaliya and K. S. Kwak, "Performance of DCSK under the Coexistence of non-Chaotic Transmit Reference System," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 11, pp. 1138-1145, 2007. DOI: .

[ACM Style]

Karuna Thapaliya and Kyung Sup Kwak. 2007. Performance of DCSK under the Coexistence of non-Chaotic Transmit Reference System. The Journal of Korean Institute of Communications and Information Sciences, 32, 11, (2007), 1138-1145. DOI: .

[KICS Style]

Karuna Thapaliya and Kyung Sup Kwak, "Performance of DCSK under the Coexistence of non-Chaotic Transmit Reference System," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 11, pp. 1138-1145, 11. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880