Introduction of Frequency-Domain Signal Processing to Broadband Single-Carrier Transmissions in a Wireless Channel

Fumiyuki ADACHI  Hiromichi TOMEBA  Kazuki TAKEDA  

IEICE TRANSACTIONS on Communications   Vol.E92-B   No.9   pp.2789-2808
Publication Date: 2009/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.2789
Print ISSN: 0916-8516
Type of Manuscript: INVITED SURVEY PAPER
single-carrier,  frequency-domain equalization,  frequency-selective channel,  wireless systems,  

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Recently, frequency-domain equalization (FDE) has been attracting much attention as a way to improve single-carrier (SC) signal transmission in a frequency-selective wireless channel. Since the SC signal spectrum is spread over the entire signal bandwidth, FDE can take advantage of channel frequency-selectivity and achieve the frequency diversity gain. SC with FDE is a promising wireless signal transmission technique. In this article, we review the pioneering research done on SC with FDE. The principles of simple one-tap FDE, channel estimation, and residual inter-symbol interference (ISI) cancellation are presented. Multi-input/multi-output (MIMO) is an important technique to improve the transmission performance. Some of the studies on MIMO/SC with FDE are introduced.