An Experimental Study on the Performance of a Minimum Bandwidth Line Code VMDB5

최소 대역폭 선로 부호 VMDB5의 성능 측정에 관한 연구

  • Kang, Chang Goo (Samsung Semiconductor & Telecommunications Co., LTD, R & D Dept. 1) ;
  • Kim, Dae Young (Dept. of Elec. Eng., Chungnam National Univ.)
  • 강창구 (삼성반도체통신(주) 구미연구분소 연구1실) ;
  • 김대영 (충남대학교 전자공학과)
  • Published : 1986.04.01

Abstract

While three most important aspects of line codes are the de-free, the minimum-bandwidth, and the self-clocking properties, the only TIBr, VMDBr, RMD3r, RMD4r codes possess all of these properties. This paper is to report the results of an experimental performance study of VMDB5. The encoder and decoder of VMDB5 and the pulse shaper have been inplemented. Power spectra, eye patterns, and error probabilities are experimentally measured, confirming the theoreticla performance predictions. It has been observed that the NRZ pulse shaping reliable transmission is possible with no extra equalization even in teh case when the -3dB channel bandwith is only half the Nyquist bandwidth.

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