A Study on the Design of a CDMA Transmission Training Kit 


Vol. 36,  No. 2, pp. 7-13, Feb.  2011


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  Abstract

In this study, we designed a CDMA(Code Division Multiple Access) transmission training kit so that electrical/electronics/communication engineers could realize easily CDMA technique. This transmission training kit was constructed with the data generator that generated the random original data signal (original signal), and the PN(Pseudo-random Noise) code generator that made PN code corresponding to a carrier signal at FDMA(Frequency Division Multiple Access) and the direct spread spectrum modulator that had spreaded directly the output signal from those two generators. That is, we designed the data generator circuit by using the regular 5’s shift register and the PN code generator by using the 10’s shift register for tile purpose of making the PN code with 1,023 bits. In the experiment, the 10’s shift register was substituted for a pair of 5’s shift register. We also designed the direct spread spectrum modulator connecting the original data signal and the PN code by the exclusive logic sum. Finally, the output waveform of the modulator showed the validity of this training system.

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  Cite this article

[IEEE Style]

S. Choi and S. Shin, "A Study on the Design of a CDMA Transmission Training Kit," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 2, pp. 7-13, 2011. DOI: .

[ACM Style]

Su-Yeol Choi and Seung-Sik Shin. 2011. A Study on the Design of a CDMA Transmission Training Kit. The Journal of Korean Institute of Communications and Information Sciences, 36, 2, (2011), 7-13. DOI: .

[KICS Style]

Su-Yeol Choi and Seung-Sik Shin, "A Study on the Design of a CDMA Transmission Training Kit," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 2, pp. 7-13, 2. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880