scholarly journals Practically Feasible Closed-Loop Digital Predistortion for VCSEL-MMF-Based Radio-over-Fiber links

2020 ◽  
Vol 29 (1) ◽  
pp. 37-43 ◽  
Author(s):  
M. U. Hadi ◽  
J. Nanni ◽  
O. Venard ◽  
G. Baudoin ◽  
J. L. Polleux ◽  
...  
Keyword(s):  
Closed Loop ◽  
Radio Over Fiber ◽  
Digital Predistortion ◽  
Fiber Links

scholarly journals Multi-dimensional crest factor reduction and digital predistortion for multi-band radio-over-fiber links

2014 ◽  
Vol 22 (17) ◽  
pp. 20982 ◽  
Author(s):  
Hao Chen ◽  
Jianqiang Li ◽  
Chunjing Yin ◽  
Kun Xu ◽  
Yitang Dai ◽  
...  
Keyword(s):  
Radio Over Fiber ◽  
Digital Predistortion ◽  
Crest Factor ◽  
Crest Factor Reduction ◽  
Fiber Links ◽  
Multi Band

scholarly journals Adaptive digital predistortion to linearize nonlinear distortion in radio-over-fiber links

2021 ◽  
Author(s):  
Hyunsuk Moon
Keyword(s):  
Wireless Communications ◽  
Field Programmable Gate Array ◽  
Nonlinear Distortion ◽  
Radio Over Fiber ◽  
Detailed Knowledge ◽  
Digital Predistortion ◽  
Nonlinear Characteristics ◽  
Field Programmable ◽  
Gate Array ◽  
Fiber Links

The application of Radio-Over-Fiber (ROF) links are widely used in wireless communications. However, due to the nonlinear characteristics of the link distortion will be introduced as the output of the link. As a result, unwanted frequencies and signals end up being delivered by an antenna. In the thesis, a technique of adaptive digital predistortion is presented. This complex gain predistortion technique requires that no detailed knowledge of the link characteristics and supports tracking of the modifications and drifts in the link characteristic. A prototype of this predistortion system is designed and implemented on a Field Programmable Gate Array (FPGA). Experiment results show that amplitude and phase nonlinearity of the ROF link are compensated with the system. The experiments demonstrated that this system show promising results and that good compensation of distortion is achieved.

Assessment of digital predistortion methods for DFB‐SSMF radio‐over‐fiber links linearization

2019 ◽  
Vol 62 (2) ◽  
pp. 540-546 ◽  
Author(s):  
Muhammad Usman Hadi ◽  
Chouaib Kantana ◽  
Pier A. Traverso ◽  
Giovanni Tartarini ◽  
Olivier Venard ◽  
...  
Keyword(s):  
Radio Over Fiber ◽  
Digital Predistortion ◽  
Fiber Links

Direct digital predistortion technique for the compensation of laser chirp and fiber dispersion in long haul radio over fiber links

2019 ◽  
Vol 51 (6) ◽  
Author(s):  
Muhammad Usman Hadi ◽  
Jacopo Nanni ◽  
Jean-Luc Polleux ◽  
Pier Andrea Traverso ◽  
Giovanni Tartarini
Keyword(s):  
Radio Over Fiber ◽  
Digital Predistortion ◽  
Fiber Dispersion ◽  
Fiber Links ◽  
Laser Chirp
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