160. A DELAY MODELLING IN SDN-BASED MOBILE NETWORKS WITH SINGLE CONTROLLER

Strahil Panev; Pero Latkoski

doi:10.51466/JEEIT1941-2041p

Strahil Panev Faculty of Electrical Engineering and Information Technologies, "Ss. Cyril and Methodius" University in Skopje, Rugjer Bošković bb, P.O. box 574, 1001 Skopje, Republic of Macedonia
Pero Latkoski Faculty of Electrical Engineering and Information Technologies, "Ss. Cyril and Methodius" University in Skopje, Rugjer Bošković bb, P.O. box 574, 1001 Skopje, Republic of Macedonia

DOI: https://doi.org/10.51466/JEEIT1941-2041p

Keywords: queueing model, SDN, performance evaluation, mobile networks, mobility management

Abstract

The Software-Defined Networking (SDN) is a concept that is already widely used in data centers and mobile core networks to provide network-wide abstraction, open interfaces, programmability, and hiding of network complexities. In mobile networks, a traditional challenge is the mobility management and providing the users a seam- less experience with minimal interruption when performing a handover. In this work we are interested in performance analysis of OpenFlow-based SDN mobile networks by using analytical modelling based on queueing theory. We ana- lyze the packet sojourn time of both the switch and the controller and the impact of key factors, such as the number of switches, probability of packet-in messages, arrival rate, and total system throughput. Our findings can be used to quantify the handover delay due to OF-signaling messages that the Mobile Node (MN) experiences when performing a “hard” handover.