An Improved Doppler Frequency Offset Estimation Algorithm of OFDM System under High-speed Movement Environment

2013 ◽  
Vol 8 (12) ◽  
Author(s):  
Yunlv Hong ◽  
Di He
Keyword(s):  
High Speed ◽  
Doppler Frequency ◽  
Estimation Algorithm ◽  
Frequency Offset ◽  
Frequency Offset Estimation ◽  
Ofdm System

scholarly journals A novel timing and frequency offset estimation algorithm for filtered OFDM system

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Xing-le Feng ◽  
Meng-jie Wang ◽  
Li Chen ◽  
Wen-xia Zhu ◽  
Kun Hua
Keyword(s):  
Estimation Algorithm ◽  
Frequency Offset ◽  
Frequency Offset Estimation ◽  
Ofdm System

An Iterative Frequency Offset Estimation Algorithm for OFDM System

2013 ◽  
Vol 765-767 ◽  
pp. 2858-2861
Author(s):  
Feng Zheng ◽  
Yun Tang ◽  
Hang Liu
Keyword(s):  
Data Structure ◽  
Wireless Communications ◽  
Iterative Algorithm ◽  
Orthogonal Frequency Division Multiplexing ◽  
Estimation Algorithm ◽  
Frequency Offset ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Frequency Offset Estimation ◽  
Ofdm System

Orthogonal Frequency Division Multiplexing (OFDM) is considered as an important technique for future wireless communications. In addition, OFDM has a better performance at inter symbol interference (ISI). One of the major disadvantages of the multi-carrier modulation is about the sensitivity of the performance to a frequency offset. In this paper, we propose an iterative algorithm of frequency offset estimation for the OFDM system. The fundamental algorithm of our iterative algorithm is the frequency pilot aided algorithm. When we get a result with the fundamental algorithm every time, we use the result to estimate for a second time. The algorithm we proposed does not require some additional pilots or changing the data structure of the fundamental algorithm.

scholarly journals A simple and efficient frequency offset estimation algorithm for high-speed coherent optical OFDM systems

2012 ◽  
Vol 20 (7) ◽  
pp. 7350 ◽  
Author(s):  
Xian Zhou ◽  
Keping Long ◽  
Rui Li ◽  
Xiaolong Yang ◽  
Zhongshan Zhang
Keyword(s):  
High Speed ◽  
Estimation Algorithm ◽  
Frequency Offset ◽  
Ofdm Systems ◽  
Frequency Offset Estimation ◽  
Optical Ofdm
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