Skip to main content
User Image

Saleh Almowuena, PhD

Assistant Professor

Department of Computer Engineering

علوم الحاسب والمعلومات
Building 31, Office No. 2185
publication
Journal Article
2020

NFV Provisioning in Large-Scale Distributed Networks With Minimum Delay

Alenazi, Mohammed . 2020

Network function virtualization (NFV) and software-defined networking (SDN) are two technologies that have emerged to reduce capital and operational costs, and to simplify network management. In this paper, we propose an SDN-based system that provisions virtual network functions (VNFs) to minimize round trip time (RTT) delay and synchronization delay requirements. Our system uses graphic-theoretic approaches to place newly requested VNFs including four centrality functions - betweenness, degree, closeness, and Katz. The system performance is evaluated using two random graph topologies representing the physical and logical structures. The impact of increasing the number of deployed VNFs is considered. The results indicate that the degree and Katz selection methods mostly provide the minimum RTT for physical networks, whereas the betweenness selection provides minimum RTT values for logical networks. Moreover, the closeness selection method provides the best synchronization delay for both logical and physical networks.

Volume Number
8
Magazine \ Newspaper
IEEE Access
Pages
151753-151763
more of publication
publications

Understanding node mobility is critical for the proper simulation of mobile devices in a wireless network. However, current mobility models often do not reflect the realistic movements of users…

by Mohammed Alenazi, Shatha Abbas, Saleh Almowuena, Maazen Alsabaan
2020
publications

Network function virtualization (NFV) and software-defined networking (SDN) are two technologies that have emerged to reduce capital and operational costs, and to simplify network management.

by Mohammed Alenazi, Abdulrahman Almutairi, Saleh Almowuena, Abdul Wadood, Egemen Çetinkaya
2020
publications

Free-viewpoint video (FVV) applications enable viewers to interactively change their viewing point and watch a scene from different angles. Each FVV is composed of multiple streams representing…

by Ahmed Hamza, Hamed Ahmadi, Saleh Almowuena, Mohamed Hefeeda
2017