Photonics-Assisted Beamforming for 5G Communications

Serafino, Giovanni; Porzi, Claudio; Falconi, Fabio; Pinna, Sergio; Puleri, Marzio; D’Errico, A.; Bogoni, Antonella; Ghelfi, Paolo

doi:10.1109/lpt.2018.2874468

Cited by 17 publications

(9 citation statements)

References 13 publications

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“…Being frequency dependent, optical PS approach is not immune to distortion in broadband communication, but it exhibits tolerance to beam squint effect as long as fractional bandwidth of the transmitted signal is small, the scanning angle is small, and the number of antenna array elements is not too high. Also, PS has the merit of more straightforward implementation [26]. On the other hand, integrated optical beamforming network based on OTTD completely mitigates the beam squint effect and offers scalability by allowing more array elements [4], [26].…”

Section: Integrated Optical Beamforming Overviewmentioning

confidence: 99%

“…Also, PS has the merit of more straightforward implementation [26]. On the other hand, integrated optical beamforming network based on OTTD completely mitigates the beam squint effect and offers scalability by allowing more array elements [4], [26]. OTTD eliminates the bandwidth constraint by providing frequency independent time delay between the antenna elements [4].…”

Section: Integrated Optical Beamforming Overviewmentioning

confidence: 99%

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An Analysis of RF On-Chip Antennas in Si-Based Integrated Microwave Photonics

2021

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We investigate the monolithic integration of RF antennas onto a silicon-based integrated microwave photonics (IMWP) chip for short-range millimeter-wave (mmW) communication. The unification of antenna with photonic integrated circuits (PICs) reduces system loss for high data rate communication by eliminating parasitic interconnects. This integration of electronics (antenna) with photonics will be a key milestone leading to increased bandwidth capability and ubiquitous wireless links for emerging applications such as 5G, Internet of Things (IoT), autonomous vehicles, high data rate point-to-point communication, and wireless sensors. Through simulation above 20 GHz, we compare the transmission of three on-chip antenna structures designed in a commercial silicon photonics (SiPh) process and consider them for both inter and intra-chip communication. Results provide insight on the transmission gain variations relative to the antenna orientation from their distinct radiation pattern. The folded monopole structure provides superior gain, smaller footprint with layout flexibility, and good transmission spectra. The analysis supports the idea of a monolithic mmW transmitter integrated with on-chip antennas on IMWP chip.

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Section: Integrated Optical Beamforming Overviewmentioning

confidence: 99%

Section: Integrated Optical Beamforming Overviewmentioning

confidence: 99%

An Analysis of RF On-Chip Antennas in Si-Based Integrated Microwave Photonics

2021

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“…Beamforming is another area that is currently explored not only in VLC, but also in 5G and the new WiFi 6 [47,57,58]. This technology can significantly improve resource allocation or the reusability of frequency bands.…”

Section: Advances In Visible Light Communicationsmentioning

confidence: 99%

Adaptive Software Defined Equalization Techniques for Indoor Visible Light Communication

Martínek

Danys

Jaroš

2020

Sensors

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This paper focuses on a channel feed-forward software defined equalization (FSDE) of visible light communication (VLC) multistate quadrature amplitude modulation (M-QAM) based system, implemented in the LabVIEW programming environment. A highly modular platform is introduced; the whole experiment is simulated in software and then thoroughly explored and analyzed during practical measurements in the laboratory, simulating real-world situations. The whole platform is based on modified National Instruments software defined radios (NI SDR) and a commercially available Philips light source, often used in Czech government institutions. Three FSDE algorithms were tested: least mean squares (LMS), normalized least mean squares (NLMS), and QR decomposition based RLS (QR-RLS). Based on measurements, QR-RLS provides the best results, improving measured values by up to 10%. The experiments also show that the simulated results are very similar to real measurements, thus proving the validity of the chosen approach. The whole platform manages to improve measured data simply by making changes to the software side of the testing prototype.

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“…The supporting pillars of 5G are the generation of a mmW carrier using microwave-photonic techniques [6,7], optical signal processing [8], a flexible optical transport layer [9], multiple-input, multiple output (MIMO) [10] and a beam forming antenna [11]. MIMO and beam forming have an important role in adaptive resource use to facilitate more efficient spectrum management and optimised power consumption [11,12]. Serafino et al proposed a photonics-assisted beam forming network in which the optical phase shifter in the beam forming network was accomplished using a microring resonator loaded Mach-Zehnder interferometer structure [11].…”

Section: Introductionmentioning

confidence: 99%

All‐fibre phase shifter based on tapered fibre coated with MoWS ₂ ‐rGO

Tan¹,

Ahmad

Tiu

2021

IET Optoelectronics

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In this work, an all-fibre phase shifter using tapered fibre coated with molybdenum tungsten disulfidereduced graphene oxide (MoWS 2 -rGO) is demonstrated. The large evanescent field of tapered fibre allows MoWS 2 -rGO to absorb injected light from a 1400-nm pump. It subsequently modifies the refractive index of both an MoWS 2 -rGO solution and tapered fibre because of the thermo-optic effect. A maximum wavelength shift of 2.489 nm is observed and the equivalent phase shift is 0.91π. The efficiency of the phase shifter is calculated at 0.0175 nm/mW. The proposed phase shifter is beneficial for a variety of applications, specifically for future optical beam-forming networks and all optical signal processing devices.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Photonics-Assisted Beamforming for 5G Communications

Cited by 17 publications

References 13 publications

An Analysis of RF On-Chip Antennas in Si-Based Integrated Microwave Photonics

An Analysis of RF On-Chip Antennas in Si-Based Integrated Microwave Photonics

Adaptive Software Defined Equalization Techniques for Indoor Visible Light Communication

All‐fibre phase shifter based on tapered fibre coated with MoWS ₂ ‐rGO

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Photonics-Assisted Beamforming for 5G Communications

Cited by 17 publications

References 13 publications

An Analysis of RF On-Chip Antennas in Si-Based Integrated Microwave Photonics

An Analysis of RF On-Chip Antennas in Si-Based Integrated Microwave Photonics

Adaptive Software Defined Equalization Techniques for Indoor Visible Light Communication

All‐fibre phase shifter based on tapered fibre coated with MoWS 2 ‐rGO

Contact Info

Product

Resources

About

All‐fibre phase shifter based on tapered fibre coated with MoWS ₂ ‐rGO