Designing WDM-RoF Concept-Based Ful1-Duplex MMW Fiber Fronthaul Microcell Network

Belkin, Mikhail E.; Alyoshin, Aleksei; Fofanov, Dmitriy

doi:10.23919/fruct48808.2020.9087454

Cited by 2 publications

(4 citation statements)

References 14 publications

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“…A well-known Radio-over-Fiber (RoF) approach combines optical fiber and wireless communication to effectively solve the limited coverage of millimeter wave (MMW) signals. It is considered the most promising concept for this massive cell-free MIMO network [4]. To achieve a scalable massive cell-free MIMO architecture and a cost-effective fronthaul solution, Guenach et al [1] consider a point-to-multipoint deployment topology where access points share a serial link.…”

Section: Relatedmentioning

confidence: 99%

“…However, this tree topology causes all access points to be interrupted when switches are disconnected from the CPU. To overcome these difficulties, ring topologies are proposed as the best and most economical choice [4]. The performance of a ring network topology is studied in [5] with 13 × 15 Gbit/s channels at 30 nodes with 90 users without using dispersion-compensated fiber in the presence of an erbium-doped fiber amplifier.…”

Section: Relatedmentioning

confidence: 99%

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Study of Radio over Fiber Transmission with a Single Line in Ring Topology for Deployment of MIMO Antenna Access Points in a Cell-less Network

Sarr¹,

Diop²,

Diouf³

et al. 2023

JST

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The massive growth of wireless traffic goes hand in hand with the deployment of advanced radio interfaces as well as network densification. This growth has a direct impact on the radio access architecture, which today is moving from centralized to distributed deployments through the use of a large number of access points (APs). This paper verifies the feasibility of deploying multiple APs in series on a single line in a ring topology in a cell-less network. On the one hand, this technique will further improve the communication capacity and flexibility of a Radio-over-Fiber (RoF) based mobile communication system and will reduce its construction cost. And on the other hand, this deployment topology is a solution to achieve a massive cell-free Multiple-Input Multiple-Output (MIMO) architecture and a cost-effective fronthaul solution. First, a passive optical add/drop multiplexer (OADM) is used to extract and add downlink and uplink signals from the remote access points of one kilometer. Then, a deployment model is developed with version 17 Optisystem software. The results obtained showed that the quadrature amplitude modulation (QAM) does not adapt to this multi-carrier transmission to deploy several AP in series on a single line. Thus, the performance degradation increases when the number of APs integrated on the line increases.

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Section: Relatedmentioning

confidence: 99%

Section: Relatedmentioning

confidence: 99%

Study of Radio over Fiber Transmission with a Single Line in Ring Topology for Deployment of MIMO Antenna Access Points in a Cell-less Network

Sarr¹,

Diop²,

Diouf³

et al. 2023

JST

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“…A detailed study of existing approaches to the optimal configurations of B5G networks and our experience in researching the optimal principles for designing analog fronthaul networks with the distribution of RF signals in the MMW band [16][17][18][19][20][21] suggest that for an NG-RAN, the optimal approach would be to use A-RoF as an architectural concept and MWP as a technological concept for designing an RU containing both optoelectronic and microwave-electronic (MWE) elements. However, the developer of new MWE devices including MWP units is facing a problem of choosing an appropriate computer platform for their modeling and design.…”

Section: Analysis Of Research Articlesmentioning

confidence: 99%

“…However, the fiber-optic transmission of the MMW-band signals has a serious limitation due to the dispersion effect of a standard single-mode optical fiber [15]. Namely, according to the conducted modeling experiments, in which the options for the transmission of optical signals with quadrature amplitude modulation (QAM) at RF of 40 GHz and IF of 15 GHz are compared [16,21,25] the maximum permissible distance between the DU and RU, even at such a relatively low MMW frequency, decreases by more than 4 times compared to transmission at the IF, reaching units of km, which is not always provided in real C-RAN fronthauls. It is understood that the situation will become much more critical for B5G NG-RANs using RF subcarriers above 100 GHz.…”

Section: A-rof-based Architecture For Wireless Fronthaulmentioning

confidence: 99%

Computer-aided design for analog wireless fronthaul of B5G cellular communication systems

Belkin¹,

Golovin²,

Tyschuk³

et al. 2021

ITU-J FET

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Specialties of an analog fronthaul based on Radio-over-Fiber architecture and key principles of exploiting microwave photonics technology when designing a millimeter-wave Radio Unit (RU) are reviewed and discussed. To clarify, in this paper we perform a comparative simulation for a specific example of developing an obligatory RU's node as a reference oscillator with an output radio frequency (RF) of more than 100 GHz, which is typically implemented by means of a circuit that includes a relatively low-frequency RF oscillator followed by a high-order frequency multiplier. Following the principles and approaches outlined, we propose and describe two alternative schemes for implementing a frequency multiplier from 4.25 to 102 GHz using microwave-electronics or microwave-photonics approach. Further, using Cadence AWRDE software with an additional introduction of the previously proposed models of optoelectronic devices, their main characteristics are considered. To ensure the practical orientation of the model experiments, the parameters of each of the models used are selected based on the specifications of commercially available discrete components.

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Designing WDM-RoF Concept-Based Ful1-Duplex MMW Fiber Fronthaul Microcell Network

Cited by 2 publications

References 14 publications

Study of Radio over Fiber Transmission with a Single Line in Ring Topology for Deployment of MIMO Antenna Access Points in a Cell-less Network

Study of Radio over Fiber Transmission with a Single Line in Ring Topology for Deployment of MIMO Antenna Access Points in a Cell-less Network

Computer-aided design for analog wireless fronthaul of B5G cellular communication systems

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