Multiple CFO Estimation Using the Properties of Zadoff-Chu Sequence

Rothna PEC
Chang-Hwan PARK
Yong-Soo CHO

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E97-A    No.1    pp.429-431
Publication Date: 2014/01/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E97.A.429
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Communication Theory and Signals
multiple CFO estimation,  CoMP,  Zadoff-Chu sequence,  

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In this letter, an estimation technique for multiple CFOs is proposed that uses the properties of the Zadoff-Chu (ZC) sequence. After initial estimation of multiple CFOs by using the properties of the ZC sequence, accurate estimates are obtained in the proposed technique by an iterative procedure. The proposed technique can be applied to LTE-based CoMP systems where ZC sequences are used to generate synchronization signals in downlink and random access preambles in uplink.