A Caltech Library Service

ML CFO and PO Estimation in DCT OFDM Systems under Non-Circular Transmissions

Cui, Tao and Gao, Feifei and Nallanathan, A. and Tellambura, Chintha (2007) ML CFO and PO Estimation in DCT OFDM Systems under Non-Circular Transmissions. In: 2007 IEEE International Conference on Communications. IEEE International Conference on Communications. IEEE , Piscataway, NJ, pp. 6275-6280. ISBN 978-1-4244-0352-3.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


Frequency synchronization is one of the most important components in orthogonal frequency-division multiplexing (OFDM) systems. Recently, the discrete cosine transform (DCT) based OFDM system has received wide attentions due to several advantages. Hence, the study of frequency synchronization issue for this newly raised system is well on its time. To provide a thorough study, we consider the non-circular transmissions, and the results can be easily generated to circular transmissions if the elliptic variance is set to zero. We present three joint maximum likelihood (ML) carrier frequency offset (CFO) and phase offset (PO) estimators. From both the theoretical analysis and the numerical comparisons, we found new advantages of the DCT-OFDM over the traditional discrete Fourier transform (DFT) based OFDM. These advantages, as well as those already studied in the early works on DCT-OFDM, support the belief that the DCT-OFDM is a new promising multi-carrier modulation (MCM) scheme.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Additional Information:© 2007 IEEE.
Other Numbering System:
Other Numbering System NameOther Numbering System ID
INSPEC Accession Number9875725
Series Name:IEEE International Conference on Communications
Record Number:CaltechAUTHORS:20100827-145242260
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19692
Deposited By: Tony Diaz
Deposited On:01 Sep 2010 17:09
Last Modified:08 Nov 2021 23:54

Repository Staff Only: item control page