Experimental verification of long-term evolution radio transmissions over dual-polarization combined fiber and free-space optics optical infrastructures

Bohata, Jan; Zvánovec, Stanislav; Pešek, Petr; Korinek, Tomas; Abadi, Mojtaba Mansour; Ghassemlooy, Zabih

doi:10.1364/ao.55.002109

Cited by 21 publications

(9 citation statements)

References 26 publications

(35 reference statements)

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“…Moreover, it is very challenging and costly to overcome the last mile by fiber especially in dense urban areas. However, it can be effectively solved by the concept of Radio over Free space optics (RoFSO), which was experimentally investigated together with dual polarization RoF technology in [12].…”

Section: Analyses Of Dual Polarization Wdm and Scm Radio Over Fiber And Radio Over Fso For C-ran Architecturementioning

confidence: 99%

Analyses of dual polarization WDM and SCM Radio over Fiber and Radio over FSO for C-RAN architecture

Pešek

Bohata

Zvánovec

et al. 2016

2016 25th Wireless and Optical Communication Conference (WOCC)

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In this paper, the transmission schemes for Centralized Radio Access Network Architecture (C-RAN) based on combination of two technologies -Radio over Fiber (RoF) and Radio over FSO (RoFSO) are simulated and experimentally verified. The proposed setups are optimized for Long Term Evolution (LTE) with 20 MHz bandwidth using 64 Quadrature amplitude modulation in terms of Error Vector Magnitude (EVM). At the first, the measurements of Polarization Division Multiplexing using combination of RoF a RoFSO (PDM-RoF/FSO) is compared with simulation models. This is further extended by combination of PDM-Wavelength Division Multiplexing (WDM)-RoF/FSO and PDM-Subcarrier Multiplexing (SCM)-RoF/FSO, respectively. Results indicate better performance of PDM-SCM-RoF/FSO than WDM RoF/RoFSO in terms of launch power to reach EVM limit.

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Section: Analyses Of Dual Polarization Wdm and Scm Radio Over Fiber And Radio Over Fso For C-ran Architecturementioning

confidence: 99%

Analyses of dual polarization WDM and SCM Radio over Fiber and Radio over FSO for C-RAN architecture

Pešek

Bohata

Zvánovec

et al. 2016

2016 25th Wireless and Optical Communication Conference (WOCC)

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“…The transmission of radio signals over free-space optics (FSO), so-called RoFSO [16], offers typical flexibility of wireless communications and speed of light transmission [17]. It also provides a higher level of coverage and mobility while exploiting unlicensed frequencies in the optical wireless domain [18].…”

Section: Introductionmentioning

confidence: 99%

Impact of Thermal-Induced Turbulent Distribution Along FSO Link on Transmission of Photonically Generated mmW Signals in the Frequency Range 26–40 GHz

et al. 2020

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Microwave photonics is a promising solution to transmit millimeter wave (mmW) signals for the 5th generation (5G) mobile communications as part of a centralized radio access network (C-RAN). In this paper, we experimentally evaluate the impact of turbulent free space optics links on photonically generated mmW signals in the frequency range of 26−40 GHz. We analyze the remote generation of mmW signals over hybrid links based on free-space optics (FSO) and standard single mode optical fiber (SSMF) with −39.97 dBm received electrical power and phase noise level at 100 kHz as low as −95.92 dBc Hz at 26 GHz. Different thermal distributions along the FSO link have been implemented and Gamma-Gamma model has been employed to estimate the thermally induced turbulence. The results show high electrical power decrease and fluctuation of the generated mmW signal according to the particular level of the turbulence in terms of refractive index structure parameter and thermal distribution along the FSO link. 8 Gb/s 16-quadrature amplitude modulation (QAM) data transmission at 42 GHz has been demonstrated over the hybrid link with minimal error vector magnitude (EVM) value of 5% whereas turbulent FSO link introduced up to 5 dB power penalty.

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“…Therefore, in such scenarios free-space optics (FSO) technologies present a viable solution while maintaining almost the same data throughput as the optical fiber and bridging the gap between the central office and BS. In recent years, numerous studies [9], [10], [11] have shown the possibilities of RoF transmission using FSO (denoted as RoFSO).…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of a 64-QAM LTE radio-over-fiber and free-space optics link at the 2000 nm band

Komanec

Bohata

Dousek

et al. 2020

2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)

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Radio over fiber (RoF) transmission systems have been developing rapidly, especially for applications in 5G networks. In scenarios unsuitable for fiber-optics, radio over free-space optics (RoFSO) presents a suitable solution. Nevertheless, free-space optics (FSO) suffers from atmospheric conditions. The use of the 2000 nm band offers several advantages over the commonly used 1550 nm region. We focus on proof-of-concept evaluation of such a 2000 nm RoFSO transmission system. Measured characteristics are compared with a similar 1550 nm RoFSO system. We demonstrate both systems for QPSK and 64-QAM LTE formats, at 5 GHz and 10 GHz with a 20 MHz bandwidth.

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Experimental verification of long-term evolution radio transmissions over dual-polarization combined fiber and free-space optics optical infrastructures

Cited by 21 publications

References 26 publications

Analyses of dual polarization WDM and SCM Radio over Fiber and Radio over FSO for C-RAN architecture

Analyses of dual polarization WDM and SCM Radio over Fiber and Radio over FSO for C-RAN architecture

Impact of Thermal-Induced Turbulent Distribution Along FSO Link on Transmission of Photonically Generated mmW Signals in the Frequency Range 26–40 GHz

Experimental validation of a 64-QAM LTE radio-over-fiber and free-space optics link at the 2000 nm band

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