49 search results - page 6 / 10 » A Novel Timing and Frequency Offset Estimation Scheme for OF... |
VTC
2007
IEEE
14 years 2 months ago
2007
IEEE
—To approximate the exact peaks of continuous-time orthogonal frequency division multiplexing (OFDM) signals, four times oversampling is usually employed for discrete-time OFDM s...
VTC
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper, two channel estimation schemes for OFDM systems are investigated in a time-variant channel. The orthogonality of the subcarriers is destroyed in a time-variant chann...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
In this paper, we propose a novel channel estimation technique based on 2D spread pilots. The merits of this technique are its simplicity, its flexibility regarding the transmissi...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
— Carrier frequency offset (CFO) estimation is a key challenge in multicarrier systems such as OFDM. Often, this task is carried out using a preamble made of a number, say J, of ...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
Abstract--In this letter, an initial ranging scheme for orthogonal frequency-division multiple-access systems is proposed by which users that intend to establish a communication li...