Open AccessDevelopment of discrete Fourier transform‐based channel estimation algorithms for a coherent optical orthogonal frequency division multiplexing transmission system
Author(s) -
Bai ChengLin,
Zhang Shuai,
Bai ShunChang,
Luo Qinglong
Publication year - 2014
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2013.0884
Subject(s) - orthogonal frequency division multiplexing , computer science , algorithm , discrete fourier transform (general) , transmission (telecommunications) , multiplexing , frequency division multiplexing , computational complexity theory , channel (broadcasting) , fast fourier transform , spectral efficiency , fourier transform , electronic engineering , transmission system , telecommunications , fractional fourier transform , mathematics , fourier analysis , engineering , mathematical analysis
In this study, the authors presented discrete Fourier transform (DFT)‐based channel estimation algorithms for a coherent optical orthogonal frequency division multiplexing (CO‐OFDM) transmission system. Influence of the proposed algorithms to the performance and computational complexity of the CO‐OFDM system was analysed and compared with other published algorithms. Their simulation results demonstrated that the improved DFT‐based channel estimation algorithms are significantly efficient in our experimental conditions. Those algorithms can be considered as efficiently compromised systems in balance out the outcome of performance and the requirement on computational complexity. Such relatively economic and practical approaches have provided an optimistic prospect in studies of transmission systems for future optical communications.