scholarly journals Digital Transmission. Orthogonal Polarization and Frequency Division Multiplexing using a Half Symbol Delay Frequency Offset Compensation Scheme(HSD-OPFDM).

1998 ◽  
Vol 52 (11) ◽  
pp. 1676-1681
Author(s):  
Atsushi Sumasu ◽  
Minoru Okada ◽  
Shozo Komaki ◽  
Heiichi Yamamoto
Keyword(s):  
Digital Transmission ◽  
Frequency Offset ◽  
Orthogonal Polarization ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Compensation Scheme ◽  
Offset Compensation

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.

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