Joint MMSE-FDE & spectrum combining for a broadband single-carrier transmission in the presence of timing offset

Tatsunori Obara, Kazuki Takeda, Fumiyuki Adachi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Frequency-domain equalization (FDE) based on minimum mean square error (MMSE) is considered as a promising equalization technique for a broadband single-carrier (SC) transmission. When a square-root Nyquist filter is used at a transmitter and receiver to limit the signal bandwidth, the presence of timing offset produces the inter-symbol interference (ISI) and degrades the bit error rate (BER) performance using MMSE-FDE. In this paper, we discuss the mechanism of the BER performance degradation in the presence of timing offset. Then, we propose joint MMSE-FDE & spectrum combining which can make use the excess bandwidth introduced by transmit filter to achieve larger frequency diversity gain while suppressing the negative effect of the timing offset.

Original languageEnglish
Pages (from-to)1366-1375
Number of pages10
JournalIEICE Transactions on Communications
VolumeE94-B
Issue number5
DOIs
Publication statusPublished - 2011 May

Keywords

  • Frequency-domain equalization
  • Nyquist filter
  • Oversampling
  • Single-carrier transmission
  • Timing offset

ASJC Scopus subject areas

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

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