Fiber-wireless architecture of a millimeter-wave telecommunication network with remote heterodyning

DOI №______

Abstract

Photon methods of generation, modulation and transmission of millimeter-wave radio signals are the key to the practical implementation of fiber-wireless integrated systems and telecommunications networks. The use of remote heterodyning signals in the millimeter range will be able to reduce the influence of polarization mode dispersion and other linear and nonlinear optical distortions in such systems. Such advantages can contribute to the implementation of multiplexing with separation by polarization, the implementation of adaptive systems of choice of radio frequencies (millimeter-band sub bands), can also improve the efficiency of using MIMO technology. For the complex structure of future telecommunication networks in which seamless integration of various technologies is required, fiber-wireless technologies with remote optical switching can effectively rearrange the operating frequency for various HetNet networks with high bandwidth comparable to the speed in optical fiber networks. Fiber-wireless systems will be able to solve the problems of weak spots in the configuration of wireless networks, for example, fiber-optic lines will be able to connect base stations and an information processing center with high capacity due to the possibility of spectral multiplexing and the use of high-order modulation formats. Methods of remote heterodyning in such systems can reduce the influence of polarization mode dispersion and other linear and nonlinear optical distortions. The proposed method of recovering an optical signal from a radio signal in the millimeter range transmitted over a wireless channel for transmission to the next fiber-optic network can be used to improve the noise characteristics and spectral efficiency of multi-channel information transmission systems. The key devices of fiber-wireless networks are a photo detector and an optoelectronic modulator, the main characteristics of which are the working band, frequency tuning step, output power, and noise characteristics. Therefore, for further development of the configuration of fiber-wireless networks with remote heterodyning, with the possibility of organizing multi-channel communication for mobile networks with high density in the millimeter-wave range, a detailed study and finding methods to improve the characteristics of these optoelectronic devices is necessary.

Keywords: fiber-wireless network, optical heterodyning, millimeter-wave range, microwave methods for generating a radio signal.

References
1. Urick V. J. Fundamentals of Microwave Photonics / V. J. Urick, J. D. McKinney and K. J. Williams // Hoboken NJ. ‒ USA, Wiley. – 2015. – 488 p.
2. Qi G. Generation and distribution of a wide-band continuously tunable millimeter-wave signal with an optical external modulation technique / Qi G., J. P. Yao, J. Seregelyi, S. Paquet, and C. Belisle // IEEE Microwave Theory and Techniques. – Oct. 2005. ‒ Vol. 53. ‒ №10. ‒ P. 3090-3097.
3. Yu J. Faster than fiber: Over 100-Gb/s signal delivery in fiber wireless integration system / J. Yu, X. Li, and N. Chi // Opt. Express. - 2013. - №19. – P. 22885–22904.
4. Yu J. Tutorial: Broadband fiber-wireless integration for 5G+ communication / Yu Jianjun, Li Xinying, Wen Zhou // J. APL Photonics. – 2018. – Vol. 3. ‒ https://doi.org/10.1063/1.5042364
5. Yu J. Cost-effective optical millimeter technologies and field demonstrations for very high throughput wireless-over-fiber access systems / J. Yu, G.-K. Chang, Z. Iia, A. Chowdhury, M.-F. Huang, H.-C. Chien,Y.-T. Hsueh,W. Jian, C. Liu, and Z. Dong // J. Light w. Technol. – 2010. - Vol. 28. - №16, P. 2376–2397.