Journal of information and communication convergence engineering

  • 제1권1호
  • /
  • Pages.1-5
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  • 2003
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  • 2234-8255(pISSN)
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  • 2234-8883(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
권호 표지

Error Performance Analysis of DS-CDMA System in Wireless Channel

  • Kang, Heau-Jo (Department of Computer Multimedia Engineering Mokwon University)
  • 발행 : 2003.03.01
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초록

This paper discusses the spectral efficiency and performance of asynchronous direct sequency spread spectrum multiple access systems strict bandwidth limitation by Nyquist filtering. The signal to noise plus interference ratio(SNIR) at the output from the correlation receiver is derived analytically taking the cross correlation characteristics of spreading sequences into account, and also an approximated SNIR of a simple form is presented for the systems employing Gold sequences. Based on the analyzed result of SNIR, bit error rate performance and spectral efficiency are also estimated. and at last, we analyzed improvement rate using RS, convolution as a method for improving functions.

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참고문헌

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  3. Gold, R., 'Maximum recursive sequences with 3valued recursive cross-correlation function,' IEEE Trans. Inf. Theory, vol. IT-14, no. 1, pp. 154-156, Jan. 1968 https://doi.org/10.1109/TIT.1968.1054106
  4. Sawada, M., Katayama, M. and Ogawa, A., 'Effect of nonlinear amplifiers of transmitters in the CDMA system using offset-QPSK,' IEICE Technical Report. SST 92-85, Mar. 1993
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