5G New Radio Fronthaul Network Design for eCPRI-IEEE 802.1CM and Extreme Latency Percentiles

Pérez, Gabriel Otero; Larrabeiti, David; Hernández, José Alberto

doi:10.1109/access.2019.2923020

Cited by 47 publications

(21 citation statements)

References 28 publications

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“…Other studies, rely on guaranteeing extreme delay percentiles [2], [10]. To the best of our knowledge, there is a lack of solutions that analyze the multi-delay-constrained joint user association and resource allocation in H-CRAN networks while solving important network convergence and design aspects to achieve a true operational integration.…”

Section: Related Workmentioning

confidence: 99%

“…In this architecture, DUs and RRUs are deployed close to each other (on the order of 100s of meters) connected using fiber [3], [9] or Ethernet point-to-point links [10]. However, the unprocessed fronthaul traffic poses stringent delay requirements as noted in the eCPRI and IEEE 802.1CM time-sensitive networking for fronthaul protocols [11], [12].…”

Section: System Modelmentioning

confidence: 99%

“…Alternatively, if an aggregation network is used to merge the C-RAN traffic from several RRUs prior to sending the data to a DU, special attention must be put on the queueing delay. In that case, we refer the reader to [10] where we present an extensive study about the modeling of the queueing delay for eCPRI fronthaul flows merging in an Ethernet aggregator. Once the C-RAN traffic enters the EPON, it is treated as any other type of traffic.…”

Section: E End-to-end Delaymentioning

confidence: 99%

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Decentralized Coordination of Converged Tactile Internet and MEC Services in H-CRAN Fiber Wireless Networks

Pérez¹,

Ebrahimzadeh²,

Maier³

et al. 2020

J. Lightwave Technol.

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In order to meet the requirements of services and applications envisioned for post-5G and 6G networks, research efforts are heading towards the convergence of architectures aiming to support the wide variety of new compute-demanding and latency-sensitive applications in the context of Tactile Internet. In this paper, we study the resource allocation and association of users with different delay requirements in a shared-backhaul fiber-wireless (FiWi) enhanced Heterogeneous Cloud Radio Access Network (H-CRAN) with Multi-access Edge Computing (MEC) and offloading. As opposed to traditional resource and association management, we propose a decentralized algorithm based on a full dual decomposition of the optimization problem to operate the network. Results show that this approach outperforms the traditional one in terms of average delay and energy consumption, achieving up to 80% average delay improvement in high-load scenarios.

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Section: Related Workmentioning

confidence: 99%

Section: System Modelmentioning

confidence: 99%

Section: E End-to-end Delaymentioning

confidence: 99%

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Decentralized Coordination of Converged Tactile Internet and MEC Services in H-CRAN Fiber Wireless Networks

Pérez¹,

Ebrahimzadeh²,

Maier³

et al. 2020

J. Lightwave Technol.

Self Cite

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“…A lot of research and development have been devoted to various optimization solutions for transportation systems of streams from D-RoF interfaces. The author reviewed the available studies [6][7][8][9][10][11][12][13], which contained the results of studies showing the undoubted legitimacy of using the D-RoF technique. In these studies, particular emphasis was put on showing that a particular type of Split/Option or method of digitizing a radio signal to a bit form gives the opportunity to increase a link efficiency.…”

mentioning

confidence: 99%

“…Switching and processing devices of integrated optical gNB-DU/RRH: (a) block construction of the photonic part with microROADM/microOM-microOD inside, (b) block construction of a common radio part with the digitized and analog radio signals switch (presented in proceedings[6]). …”

mentioning

confidence: 99%

D-RoF and A-RoF Interfaces in an All-Optical Fronthaul of 5G Mobile Systems

Zakrzewski

2020

Applied Sciences

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This paper presents a solution for enabling the coexistence of digitized radio-over-fiber (D-RoF) and analog radio-over-fiber (A-RoF) interfaces operating in the optical fronthaul of 5G mobile systems. In the first section, we formulate the need to introduce new technologies to the cloud/centralized radio access network (C-RAN) (Next Generation RAN (NG-RAN) in 5G systems). A proposition of construction of the optical remote radio head (O-RRH)/gNodeB-distributed unit (gNB-DU), which will enable the operation of digital Splits/Options and new proposed analog Splits/Options, is presented. The methods performing calculations of bit rate and optical bandwidth demand in the fronthaul/midhaul, with reference to the parameters of the new-radio-release-15 (NR-Rel-15) wireless interface and subsequent releases, towards the next generations, are presented. The bandwidth demands were calculated for selected Splits/Options, and the results are shown in diagrams. A special section is devoted to description of the results achieved and presenting potential applications of the proposed construction of a radio-photonic device as well as new Splits/Options of the next generation fronthaul/midhaul. The basic concept in the NG-RAN domain, which is promoted by 5GPPP, is the multi-layered architecture of XHaul [1,2]. This solution is based on an optical network that is designed to support traffic from various Split/Option interfaces. This architecture also includes D-RAN solutions, which means joint support for management of traffic from the fronthaul and backhaul. Based on this solution, the authors of publications [3][4][5] proposed network architectures based on optical and microwave (radio-line) transport. The presented solutions introduce traffic optimization, which, however, does not take into account the possibility of transmitting signals occurring in the A-RoF format in the network. The architecture of an Optical Transport Network (OTN) system is prepared for an efficient transport of digital traffic, which is provided at client access points. The situation is similar in the case of Time Shared Optical Network (TSON), which is a very good solution supporting the transport of information from radio-over-Ethernet (RoE) (enhanced common public radio interface (eCPRI) as well as next generation fronthaul interface (NGFI)) interfaces. A lot of research and development have been devoted to various optimization solutions for transportation systems of streams from D-RoF interfaces. The author reviewed the available studies [6][7][8][9][10][11][12][13], which contained the results of studies showing the undoubted legitimacy of using the D-RoF technique. In these studies, particular emphasis was put on showing that a particular type of Split/Option or method of digitizing a radio signal to a bit form gives the opportunity to increase a link efficiency. There is no difference in the selection of the Split/Option method in the context of the load on the fronthaul network or the RRH unit. In special solutions, attempts were made to use com...

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6G CloudNet: Towards a Distributed, Autonomous, and Federated AI-Enabled Cloud and Edge Computing

Alimi

Patel

Zaouga

et al. 2021

Computer Communications and Networks

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5G New Radio Fronthaul Network Design for eCPRI-IEEE 802.1CM and Extreme Latency Percentiles

Cited by 47 publications

References 28 publications

Decentralized Coordination of Converged Tactile Internet and MEC Services in H-CRAN Fiber Wireless Networks

Decentralized Coordination of Converged Tactile Internet and MEC Services in H-CRAN Fiber Wireless Networks

D-RoF and A-RoF Interfaces in an All-Optical Fronthaul of 5G Mobile Systems

6G CloudNet: Towards a Distributed, Autonomous, and Federated AI-Enabled Cloud and Edge Computing

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