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|Title: ||Generalized correlation-delay-shift-keying scheme for noncoherent chaos-based communication systems|
|Authors: ||Tam, Wai M.|
Lau, Francis Chung-ming
Tse, C. K. Michael
|Subjects: ||Chaos communications|
|Issue Date: ||Mar-2006 |
|Citation: ||IEEE transactions on circuits and systems. I, Regular papers, Mar. 2006, v. 53, no. 3, p. 712-721.|
|Abstract: ||In this paper, we propose a generalized correlationdelay-shift-keying (GCDSK) scheme for noncoherent chaos-based communications. In the proposed scheme, several delayed versions of a chaotic signal are first produced. Some of them will be modulated by the binary data to be transmitted. The delayed signals will then be added to the original chaotic signal and transmitted. At the receiver, a simple correlator-type detector is employed to decode the binary symbols. The approximate bit error rate (BER) of the GCDSK scheme is derived analytically based on Gaussian approximation. Simulations are performed and compared with the noncoherent correlation-delay-shift-keying (CDSK) and differential chaos-shift-keying (DCSK) modulation schemes. The effects of the spreading factor, length of delay, and the number of delay units on the BER are fully studied. It is found that GCDSK can achieve better BER performance than DCSK under reasonable bit-energy-to-noise-power-spectral-density ratios.|
|Rights: ||© 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
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|Type: ||Journal/Magazine Article|
|Appears in Collections:||EIE Journal/Magazine Articles|
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