QoE Provisioning System for VoIP and Video Streaming using Software-Defined Networking and IOTA Micropayment <Abstract> This paper presents a novel QoE provisioning system with micropayment for voice-over IP (VoIP) and video streaming services (QmV^2). QmV^2 leverages Software Defined Networking (SDN) to provide guaranteed QoE and the distributed ledger IOTA technology micropayment. More specifically, QmV^2's SDN controller has an innovative QoE calculation mechanism utilizing mean opinion score (MOS) that considers service flow monitoring parameters, including packet loss rate and delay. Upon a QoE request and receiving the IOTA payment, QmV^2 can provide the requested QoE for the service flow. We have implemented and evaluated QmV^2 using the POX SDN controller, the network emulator Mininet-WiFi with VoIP and video streaming. The results confirm QmV^2 delivers satisfactory user experiences (i.e., aligned with the guaranteed MOS values) for VoIP and video streaming applications with the confirmed IOTA payment. |