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CFO Estimation in OFDM Systems

Sophia. S*, M. Suganthi**

*Lecturer, Department of ECE., Sri Ramakrishna Engg. College, Coimbatore.

**Asst. Professor, Department of ECE., Thiagarajar College of Engg., Madurai

Periodicity:November - January'2007
DOI : https://doi.org/10.26634/jfet.2.2.873

Abstract

The demand for efficient and reliable high rate communication is ever increasing. In recent years orthogonal frequency division multiplexing (OFDM) has gone from a promising data transmission technique. In this paper we present a technique for carrier frequency offsets (CFOs) estimation in OFDM systems that is based on locating the spectral minimas within so-called null or virtual subcarriers embedded in the spectrum. The spectral minimas are found iteratively over a number of symbols and is therefore mainly useful for frequency offset tracking or in systems where an estimate is not immediately required. A goal for many years has been to be able to implement as much as possible of a radio system in the digital domain, the ultimate goal being so called software defined radio (SDR).

Keywords

OFDM, CFO,CP.

How to Cite this Article?

Sophia. S and M. Suganthi (2007). CFO Estimation in OFDM Systems. i-manager’s Journal on Future Engineering and Technology, 2(2), 11-16. https://doi.org/10.26634/jfet.2.2.873

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