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5G-Oriented Optical Underlay Network Slicing Technology and Challenges

As a type of virtual network architecture, network slicing is considered as one of the most innovative aspects of 5G networks, where dedicated slices are created for services to meet their diverse requirements in terms of bandwidth and E2E latency. In this article, the transport network slice provisioning requirements imposed by network operation and emerging services are investigated. Then we review the 5G E2E network slice control and orchestration architecture. As a component of this architecture, comparing with overlay virtualization, an optical underlay virtualization provisioning framework (including topology, bandwidth, and control function virtualization) is presented for the first time. Related optical underlay data plane slicing techniques are discussed, especially for two candidates recently proposed in ITU-T: M-OTN and SPN, with FlexO and FlexE as their key enablers. Finally, several significant challenges that need to be addressed to fully realize the vision of optical underlay network slicing and then E2E slicing are investigated.

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Informasi Detail

Judul Seri

IEEE COMMUNICATIONS MAGAZINE; Vol.58 No.2 February 2020

No. Panggil

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Penerbit

: .,

Deskripsi Fisik

p. 13 - 19

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

OPTICAL FIBER COMMUNICATION
NETWORK SLICING
NETWORK FUNCTION VIRTUALIZATION
NETWORK ARCHITECTURE
5G MOBILE COMMUNICATION

Info Detail Spesifik

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Pernyataan Tanggungjawab

Shanguo Huang, Bingli Guo, Yuanan Liu

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