scholarly journals Power-efficient method for IM-DD optical transmission of multiple OFDM signals

2015 ◽  
Vol 23 (10) ◽  
pp. 13571 ◽  
Author(s):  
Frank Effenberger ◽  
Xiang Liu
Keyword(s):  
Efficient Method ◽  
Optical Transmission ◽  
Power Efficient ◽  
Ofdm Signals

Comparison and Analysis of DCO-OFDM, ACO-OFDM and ADO-OFDM in IM/DD Systems

2014 ◽  
Vol 701-702 ◽  
pp. 1059-1062 ◽  
Author(s):  
Xu Zhang ◽  
Yu Fang Zhou ◽  
Yin Peng Yu ◽  
Peng Chao Han ◽  
Xiao Rui Wang
Keyword(s):  
Optical Communication ◽  
Orthogonal Frequency Division Multiplexing ◽  
Direct Detection ◽  
Optical Power ◽  
Frequency Division ◽  
Optical Efficiency ◽  
Power Efficient ◽  
Optical Ofdm ◽  
And Performance ◽  
Ofdm Signals

As a promising modulation technology for optical communication, Orthogonal Frequency Division Multiplexing (OFDM) is now increasingly used and a lot of ways of improving the optical efficiency of Intensity Modulated/ Direct Detection (IM/DD) systems have been proposed. And real and non-negative OFDM signals are required in this kind of system. Asymmetrically clipped DC biased Optical OFDM (DCO-OFDM), Asymmetrically Clipped Optical OFDM (ACO-OFDM) and Asymmetrically clipped DC biased Optical OFDM (ADO-OFDM) can satisfy this requirement. In this paper, we analysis the properties and performance orderly of the above three systems and simultaneously compare their performance. The simulation results show that DCO-OFDM is efficient in terms of bandwidth while the ACO-OFDM is efficient in terms of optical power. More importantly, ADO-OFDM is both power-efficient and bandwidth-efficient. At the same time, a developmentally proposal for the future OFDM in IM/DD systems is put forward.

Wireless optical transmission of 450 nm, 3.2 Gbit/s 16-QAM-OFDM signals over 6.6 m underwater channel

2016 ◽  
Author(s):  
Hassan M. Oubei ◽  
José R. Durán ◽  
Bilal Janjua ◽  
Huai-Yung Wang ◽  
Cheng-Ting Tsai ◽  
...  
Keyword(s):  
Optical Transmission ◽  
Ofdm Signals
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