Survivable Network Slicing Using Shared Link Protection
- Resource Type
- Periodical
- Authors
- Rezk, N.; Shehata, M.; Gasser, S.M.; El-Mahallawy, M.S.
- Source
- IEEE Access Access, IEEE. 11:81900-81913 2023
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Geoscience
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Reliability
Optical fiber networks
Network slicing
Resource management
Network coding
Heuristic algorithms
Telecommunication traffic
Wavelength division multiplexing
Dedicated link protection
network slicing
reliability
shared link protection
wavelength division multiplexing (WDM) metro-aggregation network
- Language
- ISSN
- 2169-3536
In optical metro-aggregation networks, logical partitioning or network slicing can enforce the high reliability required by advanced services. This can be achieved by enabling flexible resource management. Virtual network functions composing a slice can be deployed over physical nodes using different strategies. In reliable network slicing, a virtual network request involves allocating link-disjoint primary and backup resources to protect against single link failure. In this paper, we present a reliable virtual network embedding algorithm over elastic optical networks considering shared link protection (SLP). This is to reduce the required backup resources. We propose a heuristic SLP mapping algorithm that enables the multiplexing of S primary links to share the same backup resource on a given backup link, offering improved resource utilization. We extend our proposed SLP algorithm to be represented by mapping matrices. These matrices define the mapping of S sharing links on a physical link as well as the required sharing capacity. SLP is shown to perform remarkably better than dedicated link protection and allows efficient wavelength channel utilization by reducing the backup resources needed for protection by up to 37%.