5G Trial Services Demonstration: IFoF-Based Distributed Antenna System in 28 GHz Millimeter-Wave Supporting Gigabit Mobile Services

Sung, Minkyu; Kim, Joon‐Young; Kim, Eon‐Sang; Cho, Seung-Hyun; Won, Young Jun; Lim, Byoung-Chul; Pyun, Sung-Yeop; Lee, Joon Ki; Lee, Jong Hyun

doi:10.1109/jlt.2019.2918322

Cited by 27 publications

(9 citation statements)

References 39 publications

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“…Therefore, to support different broadband services, 5G FWA is expected to leverage mm-wave technology. Based on this, several research efforts have been presented in [75][76][77][78][79][80][81][82] to exploit the scheme and enhance its performance considerably. In [83], the propagation characteristics and the potential of leveraging the E-band spectrum for mobile broadband communications were discussed.…”

Section: Design Considerationsmentioning

confidence: 99%

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

et al. 2021

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There has been a growing interconnection across the world owing to various multimedia applications and services. Fixed wireless access (FWA) is an attractive wireless solution for delivering multimedia services to different homes. With the fifth-generation (5G) and beyond mobile networks, the FWA performance can be enhanced significantly. However, their implementation will present different challenges on the transport network due to the incessant increase in the number of required cell-sites and the subsequent increase in the per-site requirements. This paper presents a comprehensive tutorial on the enabling technologies, design considerations, requirements, and prospects of broadband schemes. Furthermore, the related technical challenges of FWA are reviewed, and we proffer potential solutions to address them. Besides, we review various transport network options that can be employed for FWA deployment. In this regard, we offer an in-depth discussion on their related requirements for different use cases. Moreover, we give an insight into the 3GPP RAN functional split implementations and implications on the 5G FWA transport network solutions. The concepts of virtualized RANs for attending flexibly to the dynamic nature of different use cases are also presented.

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Section: Design Considerationsmentioning

confidence: 99%

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

et al. 2021

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“…For frequency bands above 24 GHz, analog IFoF architectures can be more advantageous than RFoF ones because the signals suffer more power fading induced by fiber dispersion [27] and the high RF carrier results in the decrease of optical spectral efficiency. While compromising the low RRU complexity, analog IFoF architectures relax the hardware requirements at the DU and keep a high optical spectral efficiency [9].…”

Section: B Intermediate-frequency Signal Over Fiber (Ifof)mentioning

confidence: 99%

“…For 5G frequency range 2 (FR2) (frequency bands above 24 GHz), there is no commercial fronthaul solution yet [6]. Plentiful publications favor ARoF [9]- [12]. ARoF can contain signals with a wide bandwidth for its good optical spectral efficiency and it is appealing when combining systems with higher-order MIMO technologies for its simple RRU architecture.…”

Section: Introductionmentioning

confidence: 99%

Distributed Antenna System Using Sigma-Delta Intermediate-Frequency-Over-Fiber for Frequency Bands Above 24 GHz

Kerrebrouck

et al. 2020

J. Lightwave Technol.

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The fifth generation (5G) cellular network is expected to include the millimeter wave spectrum, to increase base station density, and to employ higher-order multiple-antenna technologies. The centralized radio access network architectures combined with radio-over-fiber (RoF) links can be the key enabler to improve fronthaul networks. The sigma-delta modulated signal over fiber (SDoF) architecture has been proposed as a solution leveraging the benefits of both digitized and analog RoF. This work proposes a novel distributed antenna system using sigma-delta modulated intermediate-frequency signal over fiber (SDIFoF) links. The system has an adequately good optical bitrate efficiency and high flexibility to switch between different carrier frequencies. The SDIFoF link transmits a signal centered at a 2.5 GHz intermediate frequency over a 100 m multi-mode fiber and the signal is up-converted to the radio frequency (24-29 GHz) at the remote radio unit. An average error vector magnitude (EVM) of 6.40 % (-23.88 dB) is achieved over different carrier frequencies when transmitting a 300 MHz-bandwidth 64-QAM OFDM signal. The system performance is demonstrated by a 2×1 multiple-input single-output system transmitting 160 MHzbandwidth 64-QAM OFDM signals centered at 25 GHz. Owing to transmit diversity, an average gain of 1.12 dB in EVM is observed. This work also evaluates the performance degradation caused by asynchronous phase noise between remote radio units. The performance shows that the proposed approach is a competitive solution for the 5G downlink fronthaul network for frequency bands above 24 GHz.

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“…There is another important challenge coming with 5G networks, which is the use of multi-element antenna arrays enabling beam steering to effectively reach the users in spite of the individual element characteristics [3]. Besides the microwave progress in developing standards to fully reach 5G capacities, the optical infrastructure has attracted attention for replacing electrical fronthaul network in centralized architectures [4], [5]. The principle of the radio frequency (RF) transmission over optical fiber is known as radio over fiber (RoF) technology [6].…”

Section: Introductionmentioning

confidence: 99%

Antenna Phased Array Beamforming at 26 GHz Using Optical True Time-Delay

Bohata

Lonsky

Spáčil

et al. 2020

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

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Multi-element antenna beam steering in freelicence higher frequency bands is one of the crucial features of 5G networks enabling better tracking of the users. In this paper, we present an experimental microwave photonics transmission system operating at 26 GHz where beamforming is fully realized in the optical domain. The system is designed to be deployed as a part of the mobile fronthaul network with an optical fiber span of 15 km. As a proof of concept, a planar 3-element antenna array has been developed and radiation patterns were measured in an anechoic chamber with high agreement between experimental and simulation results.

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5G Trial Services Demonstration: IFoF-Based Distributed Antenna System in 28 GHz Millimeter-Wave Supporting Gigabit Mobile Services

Cited by 27 publications

References 39 publications

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

Distributed Antenna System Using Sigma-Delta Intermediate-Frequency-Over-Fiber for Frequency Bands Above 24 GHz

Antenna Phased Array Beamforming at 26 GHz Using Optical True Time-Delay

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