PhD Seminar • Systems and Networking — Network Slicing to Guarantee Quality of Service Requirements

Please note: This PhD seminar will be given online.

Nashid Shahriar, PhD candidate
David R. Cheriton School of Computer Science

Network slicing is a new networking paradigm proposed to keep up with the diverse and stringent Quality of Service (QoS) requirements of emerging applications, such as augmented and virtual reality, e-health, connected vehicles, and industry automation. It is nearly impossible to accommodate very different application requirements in terms of bandwidth, latency, and reliability in a one-size-fits-all network. Instead, network slicing enables a network operator to partition its physical infrastructure into multiple end-to-end slices or virtual networks with the right-sized network, compute, and storage resources for meeting application requirements. Network slicing is considered as a key enabler for the 5th Generation (5G) mobile networks for supporting a variety of new services, including enhanced mobile broadband, ultra-reliable and low-latency communication, and massive connectivity, on the same physical infrastructure.

In this talk, I will show how network slicing can empower virtual networks to provide a wide-range of QoS guarantees while considering different physical network technologies, such as Elastic Optical Networks (EONs) and Transport Software Defined Networks (T-SDNs). My talk will start with introducing a novel optimization and algorithmic framework for deploying virtual networks with bandwidth guarantees on top of an EON. This framework also allows tuning the amount of available bandwidth during physical link failures. Next, I will present two resource-efficient schemes for reliable virtual network provisioning on a T-SDN. The first scheme ensures connectivity without bandwidth guarantee in the face of multiple link failures. The second scheme provides bandwidth guarantee against link failures by augmenting virtual networks with necessary spare capacity. Finally, I will discuss how latency-bound applications can benefit from network slicing and my future plans for developing an automated virtual network management system applicable to 5G mobile networks.

Instructions to join this online PhD seminar

Click this link: Join Microsoft Teams Meeting

Local: +1 226-243-6399 (Kitchener-Waterloo, ON)
Toll-free: (833) 827-4832 (if in Canada, but outside Kitchener-Waterloo toll-free calling area)
Conference ID: 258 181 6#