Analysis of timing and frequency o-sets on OFDM systems for fractional sampling rate

Byungju Lim, Young Chai Ko

Research output: Contribution to journalArticlepeer-review


Timing and frequency offsets are caused by imperfect synchronization at the receiver. These errors degrade the performance of OFDM systems by introducing inter-carrier-interference (ICI) and intersymbol- interference (ISI). In this paper, we derive signal-To-interference ratio (SIR) analytically with timing and frequency offsets for the case that the sampling rate of analog-To-digital converter (ADC) in OFDM receiver is an integer fraction of the signal bandwidth. We find the exact form of interference power as a function of the fractional sampling rate. Our derived analysis is confirmed by simulations and can be applied to see the exact performance of OFDM systems with fractional sampling rate.

Original languageEnglish
Pages (from-to)1946-1951
Number of pages6
JournalIEICE Transactions on Communications
Issue number10
Publication statusPublished - 2017 Oct

Bibliographical note

Funding Information:
This work was supported by Institute for Information & communications Technology Promotion (IITP) grant funded by the Korea government (MSIT) (2015-0-00300, Multiple Access Technique with Ultra-Low Latency and High Efficiency for Tactile Internet Services in IoT Environments).

Publisher Copyright:
© 2017 The Institute of Electronics, Information and Communication Engineers.


  • Fractional sampling
  • Frequency offset
  • OFDM systems
  • Synchronization
  • Timing offset

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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