Design and Analysis of a New SDM Submarine Optical Network for Greece

Papapavlou, Charalampos; Paximadis, Konstantinos; Tzimas, Giannis

doi:10.1109/iisa52424.2021.9555537

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…As it is evident, the SDM can support a significantly larger number of fiber pairs along with very high-power repeaters to rectify the power of the optical signals, which are expected to be significantly larger in number compared with traditional Figure 25. RPF systems that are expected to be in use in all future subsea cable systems [136].…”

Section: Sdm In Terrestrial and Submarine Networkmentioning

confidence: 99%

“…It should also be emphasized that SDM is an excellent option to support the everincreasing demands of traffic in the wireless part of the network by offering enhanced fronthaul/backhaul capabilities, as the antenna cell sites (or remote units) are attached via an optical distribution network (ODN), which can exploit SDM [136] (Figure 28). As a consequence, the deployed infrastructure can concurrently support multiple heterogeneous streams of digital and/or analog radio over fiber (DRoF/AroF, respectively), which can distribute heterogeneous traffic in a coordinated fashion through a converged infrastructure.…”

Section: Sdm In Wireless Fronthaul/backhaulmentioning

confidence: 99%

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A Vision of 6th Generation of Fixed Networks (F6G): Challenges and Proposed Directions

Uzunidis,

Moschopoulos,

Papapavlou

et al. 2023

Telecom

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Humankind has entered a new era wherein a main characteristic is the convergence of various technologies providing services and exerting a major impact upon all aspects of human activity, be it social interactions with the natural environment. Fixed networks are about to play a major role in this convergence, since they form, along with mobile networks, the backbone that provides access to a broad gamut of services, accessible from any point of the globe. It is for this reason that we introduce a forward-looking approach for fixed networks, particularly focused on Fixed 6th Generation (F6G) networks. First, we adopt a novel classification scheme for the main F6G services, comprising six categories. This classification is based on the key service requirements, namely latency, capacity, and connectivity. F6G networks differ from those of previous generations (F1G–F5G) in that they concurrently support multiple key requirements. We then propose concrete steps towards transforming the main elements of fixed networks, such as optical transceivers, optical switches, etc., such that they satisfy the new F6G service requirements. Our study categorizes the main networking paradigm of optical switching into two categories, namely ultra-fast and ultra-high capacity switching, tailored to different service categories. With regard to the transceiver physical layer, we propose (a) the use of all-optical processing to mitigate performance barriers of analog-to-digital and digital-to-analog converters (ADC/DAC) and (b) the exploitation of optical multi-band transmission, space division-multiplexing, and the adoption of more efficient modulation formats.

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Section: Sdm In Terrestrial and Submarine Networkmentioning

confidence: 99%

Section: Sdm In Wireless Fronthaul/backhaulmentioning

confidence: 99%

A Vision of 6th Generation of Fixed Networks (F6G): Challenges and Proposed Directions

Uzunidis,

Moschopoulos,

Papapavlou

et al. 2023

Telecom

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“…It is expected that within the next 3-4 years, submarine cables containing 40 fibers or more and within the next 5-7 years containing MCFs will need to support trans-Atlantic distances with capacities of 1 Pb/s, while the capacity needs to scale-up to about 5 Pb/s at by 2030 with cables containing about 200 fibers or cores. The benefits of advanced undersea networks extend also to shorter scenarios, e.g., Mediterranean Sea network scale [84], [85]. In specialized, low-latency applications, hollow-core fibers may be introduced.…”

Section: U N D E R S E a S Y S T E M Smentioning

confidence: 99%

Optical Switching in Future Fiber-Optic Networks Utilizing Spectral and Spatial Degrees of Freedom

et al. 2022

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Forthcoming capacity scaling requirements of optical networks and advances in optical fiber communications beyond the omnipresent single-mode fiber operating over the conventional band introduces new opportunities and challenges for exploiting the expanded spectral and spatial resources available for fiber-optic network designs. The spectral and spatial degrees of freedom introduce utilization tradeoffs that can be leveraged under different applications. After briefly reviewing the supporting network building elements (emerging fiber types, multiplexers, optical switches, and amplifiers), we consider networking scenarios such as intra/inter datacenter, terrestrial, undersea, and wireless 5G/6G hauling networks and identify the best utilization plan and key attributes that can be harnessed by the offered spectral and spatial degrees of freedom for each scenario and how optical switching can be employed therein for traffic management. Networks supporting these scenarios are Manuscript

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