Modeling and Evaluation of Software Defined Networking Based 5G Core Network Architecture

Abstract

Nowadays, the increase in the number of mobile users and cellular traffic leads to new challenges in the fifth-generation (5G) of cellular networks. The increase in the demand for high data rates brings challenges like scalability and flexibility in the 5G network. Software-defined networking (SDN) is a network paradigm that separates the control plane and data plane in the network and ease the management of the network. In this work, an SDN based 5G core architecture is proposed, in order to introduce flexibility and ease of management in the network. Another benefit of using SDN is to make the network vendorindependent. Furthermore, the explanation of initial attachment and handover procedures in the proposed architecture is provided. A network simulator is built to evaluate the performance of proposed architecture, in terms of end-to-end delay, throughput and resource utilization of controller, under different network factors. A performance comparison, in terms of end-to-end delay, between proposed SDN based 5G architecture and traditional 5G architecture is provided. Results show that the proposed architecture provides 18% to 62% less end-to-end delay, under different factors for different procedures, compared to the traditional 5G architecture. A comparison with previous works is also provided, which indicates similar trends in delay between our work and previous studies.

Opportunistic coding across on‐route dominating nodes in a flow‐oriented SDN enabled WSN

“…Repeated packet encoding during transmissions through sensory nodes reduces packet delay which is demonstrated by Szab et al 24 In the literature, various applications of SDN‐enabled WSN are deployed in a range of environments and confirmed the improvement in different evaluation metrics 25–29 . Network coding is susceptible to security issues, even though opportunistic coding with SDN architecture is better suitable for futuristic networks, such as 5G 30,31 . The usage of SDN somehow addresses the security issues in the candidate wireless ad hoc networks 32–34 …”

“…[25][26][27][28][29] Network coding is susceptible to security issues, even though opportunistic coding with SDN architecture is better suitable for futuristic networks, such as 5G. 30,31 The usage of SDN somehow addresses the security issues in the candidate wireless ad hoc networks. [32][33][34] Primarily, the work aims to assess the coding opportunity if any exists to speed up data transfer.…”

The Handover and Performance Analysis of LTE Network with Traditional and SDN Approaches

“…(i) The SDN-Based Handovers in the Driverless Vehicles. The use of SDN configuration supports provides many improvements in automation of handover facilities [30][31][32][33][34] (ii) Mobility of Drones and the Interactions. Cell selection and handover measurements for drones' interactions depend on the efficient LTE network emerged with SDN technology.…”

Redes 5G: una revisión desde las perspectivas de arquitectura, modelos de negocio, ciberseguridad y desarrollos de investigación

“…Specifically, elasticity allows the dynamic management of resources allocated to network segments according to different users' demands to use them efficiently. Fixed availability of resources on a network segment can lead to under-, and over-utilization of resources due to user demands variations (Li et al, 2017;Kazmi et al, 2019;Abdulghaffar, Mahmoud, Abu-Amara, & Sheltami, 2021). Therefore, NS is designed with an elastic nature to simultaneously satisfy the users QoS and optimize the overall network overhead.…”