Integer Frequency Offset Estimation for OFDM Systems With Residual Timing Offset Over Frequency Selective Fading Channels
نویسندگان
چکیده
منابع مشابه
Joint Weighted Least Squares Estimation of Frequency and Timing Offset for OFDM Systems over Fading Channels
~~~. ~~~~~~ ~ . . ~ ~ ~ ~ ~ ~ ~ . ~ ~ ~ ~ ~ ~ . . near the Cram&-Rao bound in the variance of estimation errors: Simulations of several estimation algorithms in a estimation. Also the complex data of the pilot subcarriers, instead of their phases, are averaged. However, these multipath fading channel show'that this algorithm provides the most accurate estimation in both the carrier frequency of...
متن کاملRobust Sampling Frequency Offset Estimation for OFDM over Frequency Selective Fading Channels
Digital radio mondiale (DRM) is a terrestrial radio broadcasting standard to replace existing analogue AM and FM broadcasting, which is based on an orthogonal frequency division multiplexing (OFDM) technique. This paper focuses on the issue of estimating a sampling frequency offset (SFO) in OFDM-based broadcasting systems under frequency selective fading channels. In order to design a robust SF...
متن کاملA technique for Carrier frequency offset estimation in OFDM- based systems for Frequency-Selective Fading Channels
This paper discusses the effects of frequency offset on the performance of orthogonal frequency division multiplexing (OFDM) digital communications. The main problem with frequency offset is that it introduces interference among the multiplicity of carriers in the OFDM signal. The aim of this survey is to investigate Carrier frequency offset estimation method in based OFDM systems. According to...
متن کاملBlind Coarse Timing Offset Estimation for CP-OFDM and ZP-OFDM Transmission over Frequency Selective Channels
We present a blind coarse timing offset estimation technique for CP-OFDM and ZP-OFDM transmission over frequency selective channels. The technique exploits the cyclic prefix or zero padding structure to estimate the starting position of the OFDM symbols without requiring any additional pilots. Simulation results are performed on various channel models with timing and frequency offsets. The pres...
متن کاملCarrier Frequency Offset Estimation in Ofdm Systems
Orthogonal Frequency Division Multiplexing (OFDM) is multicarrier modulation scheme for combating channel impairments such as severe multipath fading and impulsive noise. However, the principal disadvantage of OFDM is that it is highly susceptible to carrier frequency offset (CFO). Carrier frequency offset occurs due to frequency discrepancies between transmitter and receiver and Doppler shift ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Vehicular Technology
سال: 2012
ISSN: 0018-9545,1939-9359
DOI: 10.1109/tvt.2012.2195234