Optical phase-locked loop phase noise in 5G mm-wave OFDM ARoF systems

被引:2
|
作者
Dodane, Delphin [1 ]
Santacruz, Javier Perez [2 ]
Bourderionnet, Jerome [1 ]
Rommel, Simon [2 ]
Feugnet, Gilles [1 ]
Jurado-Navas, Antonio [3 ]
Vivien, Laurent [4 ]
Monroy, Idelfonso Tafur [2 ]
机构
[1] Thales Res & Technol, 1 Ave Augustin Fresnel, F-91767 Palaiseau, France
[2] Eindhoven Univ Technol, Inst Photon Integrat, NL-5600 MB Eindhoven, Netherlands
[3] Univ Malaga, Univ Inst Telecommun Res TELMA, Wireless Opt Commun Lab, CEI Andalucia Tech, E-29071 Malaga, Spain
[4] Univ Paris Saclay, Ctr Nanosci & Nanotechnol, CNRS, 10 Blvd Thomas Gobert, F-91120 Palaiseau, France
关键词
5G; Phase noise; OPLL; ARoF; OFDM; Mm-wave; RADIO-OVER-FIBER; SEMICONDUCTOR-LASERS; GENERATION; LOCKING; ANALOG;
D O I
10.1016/j.optcom.2022.128872
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The use of millimeter-wave (mm-wave) frequencies is required in order to support the increasing number of connected devices expected from the fifth generation (5G) of mobile communications. Subsequently, the generation of radio-frequency (RF) carriers ranging from 10 GHz to 300 GHz and their transport through optical distribution network (ODN) is a key element of the future 5G fronthaul. Optically assisted RF carrier generation is one of the most promising solutions to tackle this issue, allowing a wide use of analog radio-over-fiber (ARoF) architectures. However the main limitation of these optical methods is related to the finite coherence of lasers sources, which can dramatically degrade data transmission in analog formats. To mitigate its impact, the use of orthogonal frequency-division multiplexing (OFDM) as the 5G standard allows employing efficient phase noise compensation algorithms. Therefore, in this study, we present an experimental demonstration of a mm-wave generation technique based on an optical phase-locked loop (OPLL) that fulfills the frequency specifications for 5G. Then, an algorithm is introduced that improves data recovery at reception and reduces the impact of a possible high phase noise carrier. Finally, a back-to-back data transmission experiment is performed, demonstrating the efficiency of the algorithm to reach the 5G requirements. These results emphasize the use of OPLLs as a viable solution to generate mm-wave carriers for 5G and beyond.
引用
收藏
页数:9
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