Research Area:  Software Defined Networks
Network virtualization technologies have played efficient roles in deploying cloud, Internet of Things (IoT), big data, and 5G network. We have conducted a survey on network virtualization technologies, such as software-defined networking (SDN), network functions virtualization (NFV), and network virtualization overlay (NVO). For each of technologies, we have explained the comprehensive architectures, applied technologies, and the advantages and disadvantages. Furthermore, this paper has provided a summarized view of the latest research works on challenges and solutions of security issues mainly focused on DDoS attack and encryption.
Keywords:  
Cloud
Network Virtualization
NFV
NVO
SDN
Security
Author(s) Name:  Seung Hun Jee, Ji Su Park, Jin Gon Shon
Journal name:   Journal of Information Processing Systems
Conferrence name:  
Publisher name:  Korea Institute of Science and Technology Information
DOI:  10.3745/JIPS.04.0220
Volume Information:  Volume 17, No 4 (2021), pp. 801 - 817
Paper Link:   https://koreascience.kr/article/JAKO202126651518255.page