Joint Channel Shortening and Carrier Frequency Offset Estimation Based on Carrier Nulling Criterion in Downlink OFDMA Systems

Teruyuki MIYAJIMA  Ryo KUWANA  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E96-A   No.5   pp.1014-1016
Publication Date: 2013/05/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E96.A.1014
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Communication Theory and Signals
Keyword: 
block transmission,  inter-block interference,  blind equalizer,  carrier frequency offset,  

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Summary: 
In this letter, we present a joint blind adaptive scheme to suppress inter-block interference and estimate a carrier frequency offset (CFO) in downlink OFDMA systems. The proposed scheme is a combination of a channel shortening method and a CFO estimator, both based on the carrier nulling criterion. Simulation results demonstrate the effectiveness of the proposed scheme.