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dc.contributor.authorLai, Yuan-Chengen_US
dc.contributor.authorAli, Ahsanen_US
dc.contributor.authorHossain, Md Shohraben_US
dc.contributor.authorLin, Ying-Daren_US
dc.date.accessioned2019-04-02T05:58:42Z-
dc.date.available2019-04-02T05:58:42Z-
dc.date.issued2019-03-15en_US
dc.identifier.issn1084-8045en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.jnca.2019.01.010en_US
dc.identifier.urihttp://hdl.handle.net/11536/148982-
dc.description.abstractSoftware Defined Networking (SDN) decouples the control plane from the data plane, thereby facilitating network virtualization, dynamic programmability and flexibility in network management. Previous studies on SDN modeling focus only on packet-level arrivals. However, if flow-level arrivals are not also considered, the model cannot properly reflect the true probability of packets being sent to the controller. Accordingly, the present study proposes two analytical models for predicting the performance of TCP and UDP flows over SDN, respectively, given the assumption of both flow-level arrivals and packet-level arrivals. In constructing the models, the switch and controller are considered jointly and four-dimensional states are used to evaluate the steady-state probabilities of the states. Analytical formulae are derived for the average packet delay and packet loss probability of the TCP and UDP flows. Simulation results very well match with the analytical ones, thereby validating our analytical models. The results show that TCP significantly outperforms UDP over SDN architectures. In particular, TCP reduces the packet delay by 12 similar to 50% and the packet loss probability by 25 similar to 100%.en_US
dc.language.isoen_USen_US
dc.subjectSoftware defined networking (SDN)en_US
dc.subjectPerformance modelingen_US
dc.subjectQueueing modelen_US
dc.subjectTCPen_US
dc.subjectUDPen_US
dc.titlePerformance modeling and analysis of TCP and UDP flows over software defined networksen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.jnca.2019.01.010en_US
dc.identifier.journalJOURNAL OF NETWORK AND COMPUTER APPLICATIONSen_US
dc.citation.volume130en_US
dc.citation.spage76en_US
dc.citation.epage88en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000460715400006en_US
dc.citation.woscount0en_US
Appears in Collections:Articles