Interference suppression in OFDM-antenna array with time shifted sampling

Hiroki Suzuki, Refik Çaǧlar Kizilirmak, Yukitoshi Sanada

Research output: Contribution to journalArticle


In this letter, an interference suppression scheme by MMSE combining in OFDM-antenna array with time shifted sampling (TSS) is proposed. An array antenna at a base station has been thoroughly investigated to increase the uplink capacity. The performance of the uplink is not only limited by the correlation between the antenna elements, which strongly depends on the spatial aspects of the channel, as well as the interference from the terminals. Numerical results through computer simulation show that the proposed scheme improves bit error rate performance because of interference suppression by MMSE combining and diversity reception by TSS at the same time.

Original languageEnglish
Pages (from-to)2945-2948
Number of pages4
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number11
Publication statusPublished - 2009 Nov



  • Antenna array
  • MMSE
  • OFDM
  • Time shifted sampling

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics
  • Signal Processing

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