Low complexity pipeline FFT processor for MIMO-OFDM systems

Sangmin Lee, Yunho Jung, Jaeseok Kim

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


In this paper, we propose a low complexity pipeline F1FT processor for MIMO-OFDM systems with four transmitting and four receiving (4 x 4) antennas. The proposed FFT processor is based on multi-channel structure which enables to support multiple data streams efficiently. With mixed-radix algorithm, the number of non-trivial multiplications of the proposed FFT processor are decreased. Implementation results show that the proposed FFT processor reduces the required number of logic gates by 25% over the conventional 4-channel R4MDC FFT processor which has been considered to be the most area-efficient FFT processor for 4 × 4 MIMO-OFDM systems.

Original languageEnglish
Pages (from-to)750-754
Number of pages5
Journalieice electronics express
Issue number23
Publication statusPublished - 2007 Dec 10

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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