End-to-end URLLC slicing based on packet duplication in 5G optical transport networks
Artikel i vetenskaplig tidskrift, 2020

With the stringent requirements of high reliability and low latency, ultra-reliable low latency communications (URLLCs) are one of three typical services in the fifth generation of mobile network (5G) paradigm. The packet duplication (PD) technique has been proposed as a promising solution to satisfy the extreme requirements of URLLC services. However, the benefit of PD comes at the cost of doubling resource usage. This paper investigates how to efficiently perform end-to-end URLLC slicing based on PD in 5G optical transport networks. Two heuristic algorithms are proposed, including PD-based slicing with wavelength isolation (PDS-WI) and PD-based slicing with link isolation (PDS-LI). The target of this paper is to maximize the number of accommodated URLLC slices by optimizing the allocation of heterogenous resources. The time complexity of these two algorithms is analyzed in detail. With dynamic slice requests, simulations are performed to evaluate and compare their performance in terms of slice blocking probability and resource usage. Meanwhile, two different network scenarios are considered in simulation. Simulation results indicate that PDS-WI outperforms PDS-LI by accommodating more URLLC slices. © 2009-2012 OSA.

Fading channels

Statistical delay

Quality of service

5G mobile communication systems


Yajie Li

Beijing University of Posts and Telecommunications (BUPT)

Jun Li

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Yongli Zhao

Beijing University of Posts and Telecommunications (BUPT)

Jie Zhang

Beijing University of Posts and Telecommunications (BUPT)

Journal of Optical Communications and Networking

1943-0620 (ISSN)

Vol. 12 7 192-199 9087948







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