Integer frequency offset detection with reduced complexity in OFDM systems

2017 ◽  
Author(s):  
Hamed Abdzadeh-Ziabari ◽  
Wei-Ping Zhu ◽  
M.N.S. Swamy
Keyword(s):  
Frequency Offset ◽  
Ofdm Systems ◽  
Reduced Complexity ◽  
Integer Frequency Offset

A Low Complexity Integer Frequency Offset Estimation Scheme Based on Coherence Phase Bandwidth for OFDM Systems

2013 ◽  
Vol 479-480 ◽  
pp. 878-882
Author(s):  
Youngseok Lee ◽  
Seong Ro Lee ◽  
Seungsoo Yoo ◽  
Jeongyoon Shim ◽  
Jaewoo Lee ◽  
...  
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Low Complexity ◽  
Frequency Offset ◽  
Frequency Division ◽  
Ofdm Systems ◽  
Frequency Offset Estimation ◽  
Timing Offset ◽  
Estimation Scheme ◽  
Reduced Complexity ◽  
Integer Frequency Offset

In this paper, we propose a low complexity integer frequency offset estimation scheme based on coherence phase bandwidth for orthogonal frequency division multiplexing (OFDM) systems. The proposed scheme overcomes the effect of the timing offset via correlating the local and received OFDM training symbols in a coherence phase bandwidth block unit. Moreover, by utilizing a threshold to determine an interger frequency offset etimate, the proposed scheme need not calculate correlation values for all possible interger frequency offset candidates. From numerical results, it is demonstrated that the proposed scheme can estimate the integer freqeuncy offset with a reduced complexity while minataining the same level of the estimation performance.

ML Estimation of Integer Frequency Offset in OFDM Systems

2006 ◽  
Author(s):  
Jiang Wu ◽  
Xiaohu You ◽  
Chunming Zhao ◽  
Xiqi Gao ◽  
Yan Wang
Keyword(s):  
Frequency Offset ◽  
Ofdm Systems ◽  
Ml Estimation ◽  
Integer Frequency Offset
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