2026-10-30T01:51:31Zhttps://bayburt-rdlopen.rawdatalibrary.net/oai/requestoai:bayburt-rdlopen.rawdatalibrary.net:bayburt/121422026-10-29T19:42:11Zopenairecom_bayburt_10000col_bayburt_10001com_bayburt_10010col_bayburt_10224QoSChain: Provisioning Inter-AS QoS in Software-Defined Networks with BlockchainKarakus, MuratGuler, EvrimUludag, Suleymanblockchaininter autonomous systemsinter-domain routingQoSroutingSDNSoftware-defined networkingData flows of various applications, such as video conferencing, telesurgery, online-gaming, etc., require particular treatment regarding Quality of Service (QoS) because of their sensitivity to such parameters as high bandwidth, low delay, and so on. However, provisioning of QoS-based routing services across Autonomous Systems (ASes) poses gruelling challenges due to the distributed nature and business confidentially hesitations. This study presents a novel blockchain-aided QoS-enabled inter-AS routing framework, QoSChain (QC), by blending merits of Software-Defined Networking (SDN) and Blockchain technologies. QC framework introduces a coordination framework with mutually distrusting participants that eliminates centralized mediators in provisioning QoS among SDN-enabled ASes. Also, QC reduces the time to set up an end-to-end (E2E) path and the number of messages exchanged and processed by SDN controllers for a QoS flow. Furthermore, it alleviates the concerns of network operators regarding potentially sensitive information disclosure resulting from the required information sharing for QoS-based cross-AS paths by masking details of any confidential information. Experimental results verify the feasibility of the proposed framework on E2E QoS-based routing among SDN networks. This work aims at being a useful primer for researchers in providing insights on how blockchain can be deployed in QoS-enabled routing.Institute of Electrical and Electronics Engineers Inc.2021Articlehttps://rdlopen.rawdatalibrary.net/r/bayburt/12142https://doi.org/10.1109/tnsm.2021.30604761932-4537enIEEE Transactions on Network and Service Managementinfo:eu-repo/semantics/closedAccessinfo:eu-repo/semantics/articlehttps://bayburt-rdlopen.rawdatalibrary.net/tr/items/bayburt/12142