MIMO-Supporting Radio-Over-Fiber System and its Application in mmWave-Based Indoor 5G Mobile Network

Kim, J.; Sung, Minkyu; Cho, Seung-Hyun; Won, Young Jun; Lim, Byoung-Chul; Pyun, Sung-Yeop; Lee, Joonki; Lee, Jong Hyun

doi:10.1109/jlt.2019.2931318

Cited by 55 publications

(21 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table II shows that our mmWave RAU realizes state-of-the-art performance regarding achieved bit rate, level of integration and beam steering performance. While a plethora of optical beamforming implementations have already been proposed [31], [32], only a limited amount of reported mmWave fiber-wireless experiments [8], [11], [12], [33]- [55] effectively demonstrate optical beamforming [40]- [55]. In [44], [45], [47], [54], beam steering is realized by employing bulky external optical delay lines, which are either located at the RAU [44], [45] or at the CO [47].…”

Section: State Of the Art And Future Workmentioning

confidence: 99%

Air-Filled SIW Remote Antenna Unit With True Time Delay Optical Beamforming for mmWave-Over-Fiber Systems

Paula

Bogaert

Caytan

et al. 2022

J. Lightwave Technol.

View full text Add to dashboard Cite

A low-complexity and efficient mmWave-over-fiber remote antenna unit (RAU) is proposed that enables broadband transmission and wide-angle squint-free beam steering in the full [26.5-29.5] GHz n257 5G band. It leverages an in-house developed optical beamforming network (OBFN), implemented on a silicon photonics integrated circuit, and a broadband optically enabled 1x4 uniform linear array (ULA), enabling grating-lobe-free beam steering between [-50 • , 50 • ]. The antenna elements (AEs) of the ULA are implemented in air-filled substrate-integratedwaveguide technology. They adopt a novel improved aperturecoupled feeding scheme to achieve high efficiency, high isolation and minimal back radiation over a broad frequency band. Each AE is compactly integrated and co-optimized with a dedicated opto-electrical transmit chain, maximizing the RAU's performance, including beamforming flexibility and energy efficiency, while minimizing its size. The separately packaged OBFN implements true-time-delay beamforming by means of four switchable optical delay lines that are capable of discretely tuning the delay difference between AEs with a resolution of 1.6 ps, up to a maximum delay of 49.6 ps to fully exploit the ULA's full grating-lobe-free scan range. Measurements show that the AEs are excellently matched in the [25.1-30.75] GHz band, exhibit high isolation (>15 dB) in the operating band, and feature a stable peak gain of 6.8±0.72 dBi with a beamwidth of at least 95 • . Additionally, optical beamforming was successfully demonstrated by steering the RAU's beam towards angles up to 51.8 • , with a maximum gain degradation below 0.6 dB. Finally, the optically enabled 1×4 ULA successfully establishes a 64-QAM wireless communication link at 2.2 Gbaud (13.2 Gbps) while beam steering up to 50 • with an error vector magnitude below 7.6%.

show abstract

Section: State Of the Art And Future Workmentioning

confidence: 99%

Air-Filled SIW Remote Antenna Unit With True Time Delay Optical Beamforming for mmWave-Over-Fiber Systems

Paula

Bogaert

Caytan

et al. 2022

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…The Manhattan distance function follows a grid-like path to calculate the distance from one data point to another. The Manhattan distance between two data points is the sum of the grid paths [4]. The formula for the distance between point X = ðX 1 , X 2 , ⋯, X n Þ and point…”

Section: Mobile Network System and Enterprisementioning

confidence: 99%

Decision‐Making Optimization Design of Enterprise Standardization Management Planning Based on Mobile Network System

Wang

Wang²,

Ye³

2021

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

With the continuous deepening of enterprise management and market competition, the pressure of production and operation of enterprises is increasing, and it is urgent to improve the management level of enterprises. This paper mainly studies the decision optimization design of enterprise standardization management planning based on mobile network system. In this paper, the idea of clustering is used to integrate the customers into a customer clustering mode, which will greatly reduce the number of customers studied in the model and simplify the optimization process of the model. Through online and offline processes, these can achieve dynamic and rapid processing of data flow and can well meet the needs of users for data flow analysis. In the construction of enterprise standardization strategic performance evaluation index system, it is necessary to decompose, combine, and converge the index system. According to the construction principles and methods discussed above, the influencing factors of standardized strategic performance evaluation indicators of construction enterprises are preliminarily stratified by using the expert survey method and cluster analysis method, so as to construct the initial evaluation system. For the mobile network system testing, we use the black box test and white box test. The test content mainly includes two modules: area calculation and label calculation. Experimental data show that when the time threshold Ts is set to 1 hour, the prediction accuracy of TBM increases from 46.9% to 47.7%. The results show that the mobile network system realizes the whole life cycle management of enterprise standards and improves the management level of enterprise standardization work.

show abstract

“…CWDM is utilised in order to multiplex the different 5G MIMO signals, which means each MIMO stream needs a separate wavelength widely separated from the adjacent wavelength. This will limit the number of users especially if the system is used in a PON environment as in [42,97].…”

Section: G Mimo Signals Over Fibrementioning

confidence: 99%

A Review on MIMO Wireless Signals over Fibre for Next Generation Fibre Wireless (FiWi) Broadband Networks

et al. 2020

View full text Add to dashboard Cite

Next-generation access/mobile networks have set high standards in terms of providing wireless services at high data rates in order to keep up with the vast demands for other mobility and multiple services. Wireless-optical broadband access network (WOBAN) technology, also known as fibre-wireless (FiWi), has uncovered incredible opportunities for the future of next-generation networks because it gets the best of both domains: huge bandwidth provided by the optical fibre and high ubiquity of the wireless domain. The objective of FiWi networks is to integrate the high data rate and long reach provided by optical networks and the ubiquity and mobility of wireless networks, with the target to decrease their expense and complexity. Multiple-input–multiple-output (MIMO) is an inevitable technique for most of the new mobile/wireless networks that are driven by the huge data rates required by today’s users. Consequently, to construct any FiWi system for next-generation (NG) access/broadband networks, an MIMO technique has to be considered. This article presents a comprehensive, contemporary review of the latest subsystems, architectures and integrated technologies of MIMO wireless signals backhauling using optical fibre or fibre access networks, such as passive optical networks (PONs). An overview for FiWi, PONs and MIMO wireless systems is provided. In addition, advanced techniques of accommodating the MIMO wireless signals over optical fibre are explained and compared. Different types of wireless MIMO signals over fibre, such as 5G, WiFi and related transport technologies, are reviewed. Moreover, future research trends are also discussed.

show abstract

MIMO-Supporting Radio-Over-Fiber System and its Application in mmWave-Based Indoor 5G Mobile Network

Cited by 55 publications

References 23 publications

Air-Filled SIW Remote Antenna Unit With True Time Delay Optical Beamforming for mmWave-Over-Fiber Systems

Air-Filled SIW Remote Antenna Unit With True Time Delay Optical Beamforming for mmWave-Over-Fiber Systems

Decision‐Making Optimization Design of Enterprise Standardization Management Planning Based on Mobile Network System

A Review on MIMO Wireless Signals over Fibre for Next Generation Fibre Wireless (FiWi) Broadband Networks

Contact Info

Product

Resources

About