Journal of the Institute of Electronics Engineers of Korea SD (대한전자공학회논문지SD)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Extended Hadamard Codes for Spectral-Amplitude-Coding Optical CDMA

Spectral-Amplitude-Coding Optical CDMA를 위한 Extended Hadamard Code

  • Jhee, Yoon-Kyoo (Dept. of Electronics Engineering, Ewha Womans University)
  • 지윤규 (이화여자대학교 전자공학과)
  • Received : 2009.08.05
  • Published : 2010.05.25
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Abstract

Good performance of spectral-amplitude-coding optical CDMA can be obtained using codes based upon Hadamard matrices, but Hadamard codes have very restrictive code lengths of $2^n$. In this paper a new code family, namely extended Hadamard code, is proposed to relax the code length restriction and the number of simultaneous users. The improved performance of the proposed system is analysed with the consideration of phase-induced intensity noise(PIIN).

Hadamard code를 이용한 spectral-amplitude-coding optical code-division multiple-access(OCDMA)는 효율적인 시스템을 구성할 수 있으나 $2^n$개의 code length만을 갖는 특성을 지닌다. 이의 한계성을 극복할 수 있는 extended Hadamard codes를 제안하고 주된 잡음인 phase-induced intensity noise(PIIN)를 분석하여 향상된 시스템의 특성을 보인다.

Keywords

References

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