A Study on Interference Effects in OFDM System

OFDM 통신 시스템에서의 간섭 현상에 관한 연구

  • 이종길 (인천대학교 정보통신공학과)
  • Published : 2004.08.01


In this paper we analyze the effects of frequency offset, doppler spread, sampling and oscillator phase noise in mobile channels on orthogonal frequency division multiplexing(OFDM)system, Since this kind of distortions cause subcarrier interference which can be seen as additional noise, performance of OFDM system is degraded. We show the limitation of maximum carrier frequency offset and doppler frequency to maintain designated SNR, and analyze characteristics of the performance of OFDM systems considering the oscillator phase noise.


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