Spectral method of blind carrier tracking for OFDM

SL Talbot, B Farhang-Boroujeny - IEEE Transactions on Signal …, 2008 - ieeexplore.ieee.org
We propose an adaptive, low-complexity, blind carrier tracking algorithm that takes
advantage of the in-band ripple of the orthogonal frequency-division multiplexing (OFDM) …

Time-varying carrier offsets in mobile OFDM

SL Talbot, B Farhang-Boroujeny - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
A carrier offset in OFDM system simulation is generally considered to be slowly time-varying,
so that, over short simulation periods, it may be considered to be a constant quantity …

Maximum-likelihood estimation of frequency and time offsets in OFDM systems with multiple sets of identical data

MH Cheng, CC Chou - IEEE transactions on signal processing, 2006 - ieeexplore.ieee.org
This paper generalizes the existing algorithm for the maximum-likelihood (ML) estimation of
frequency and time offsets in orthogonal frequency-division multiplexing (OFDM) systems …

ML-based symbol timing and frequency offset estimation for OFDM systems with noncircular transmissions

T Fusco, M Tanda - IEEE transactions on signal processing, 2006 - ieeexplore.ieee.org
This paper deals with the problem of joint symbol timing and carrier-frequency offset (CFO)
estimation in orthogonal frequency-division multiplexing (OFDM) systems with noncircular …

OFDM frame synchronization for dispersive channels

D Landstrom, N Petersson, P Odling… - Proceedings of the …, 2001 - ieeexplore.ieee.org
We address time synchronization in an OFDM system and present an ML estimator that also
is unbiased for dispersive channels. The estimator uses the redundancy introduced by the …

Time delay estimation for KSP-OFDM systems in multipath fading channels

D Van Welden, H Steendam… - 2009 IEEE 20th …, 2009 - ieeexplore.ieee.org
In this paper we present a time delay estimation algorithm for known symbol padding (KSP)
orthogonal frequency division multiplexing (OFDM) systems. The estimator exploits both the …

OFDM receiver using polar coordinate system and method thereof

DK Kim - US Patent 7,158,476, 2007 - Google Patents
(57) ABSTRACT A received signal is converted into a digital signal through an A/D converter
and then converted into the polar coordi nate system. A synchronizer removes a frequency …

A new synchronization algorithm for OFDM systems in multipath environment

L Wang, X Shan, Y Ren - The 8th International Conference on …, 2002 - ieeexplore.ieee.org
Carrier frequency and symbol timing errors may greatly degrade the performance of the
orthogonal frequency division multiplexing (OFDM) system, especially in multipath …

FPGA realization of an OFDM frame synchronization design for dispersive channels

YT Hwang, KW Liao, CH Wu - 2003 IEEE International …, 2003 - ieeexplore.ieee.org
This paper presents an FPGA implementation of an OFDM time synchronization scheme for
dispersive channels. The synchronization algorithm, adapted from the scheme in (D …

[PDF][PDF] Synchronization Technics for OFDM Systems

T Fusco - 2004 - fedoa.unina.it
Although the principles of Orthogonal Frequency Division Multiplexing (OFDM) modulation
[1, 2] have been in existence since 1960, in the last years OFDM modulation is emerged as …