Abstract
Network softwarization paradigm, whose main enabler is Network Functions Virtualization (NFV), facilitates the automation of the management operations and orchestration of the future networks, thus reducing the operational expenditures of the network. The envisioned management practices include the introduction of automation in the scaling of network services. This may enable operators to handle workload fluctuations to keep the desired performance with great agility and reduced costs. This procedure introduces a non-negligible delay in allocating or releasing virtual resources. Therefore, waiting until the system is overloaded or underutilized so as to scale resources up or down could negatively impact user Quality of Experience, or lead to inefficient resource utilization. In this vein, this paper proposes a novel and agile Dynamic Auto Scaling Algorithm for the Long Term Evolution (LTE) virtualized Evolved Packet Core (vEPC) Control Plane (CP). The resources dimensioning stage of the algorithm is based on an original queuing model for the LTE CP. To model the LTE CP, we use an open network of G/G/m queues. We also provide expressions to derive the steady state transition probabilities of the queuing network. Finally, we validate the proper operation of our solution using accurate simulation tools.
Original language | English |
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Title of host publication | 2018 IEEE Global Communications Conference, GLOBECOM 2018 |
Publisher | IEEE |
ISBN (Electronic) | 978-1-5386-4727-1 |
DOIs | |
Publication status | Published - 2018 |
MoE publication type | A4 Conference publication |
Event | IEEE Global Communications Conference - UAE, Abu Dhabi, United Arab Emirates Duration: 9 Dec 2018 → 13 Dec 2018 https://globecom2018.ieee-globecom.org/ |
Publication series
Name | IEEE Global Communications Conferences |
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Publisher | IEEE |
ISSN (Electronic) | 2576-6813 |
Conference
Conference | IEEE Global Communications Conference |
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Abbreviated title | GLOBECOM |
Country/Territory | United Arab Emirates |
City | Abu Dhabi |
Period | 09/12/2018 → 13/12/2018 |
Internet address |
Keywords
- queuing model
- dimensioning
- LTE EPC
- control plain
- NFV
- network softwarization
- dynamic resource provisioning
- dynamic auto scaling algorithm