Implementations of FFT and STBD for MIMO-OFDM on a reconfigurable baseband platform

Shuang Zhao, Wenqing Lu, Xiaofang Zhou, Dian Zhou, Gerald E. Sobelman

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

MIMO-OFDM systems aim to improve transmission quality and/or throughput but require significant signal processing capability and flexibility at reasonable cost. This paper proposes a reconfigurable architecture and associated algorithm optimizations for these types of systems based on the IEEE 802.11n and IEEE 802.16e standards. In particular, we describe the implementation of two key computations onto this architecture, namely Fast Fourier Transform (FFT) and Space-Time Block Decoding (STBD). The design is post-layout using a UMC 0.18micron technology at a clock rate of 100 MHz. Performance comparisons with other optimization methods and hardware implementations are given.

Original languageEnglish (US)
Pages (from-to)811-821
Number of pages11
JournalIEICE Transactions on Information and Systems
VolumeE93-D
Issue number4
DOIs
StatePublished - 2010

Keywords

  • Algorithm implementation
  • FFT
  • MIMO-OFDM
  • Reconfigurable architecture
  • STBD

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