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 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.

Improved DAG in blockchain tangle for IOTA

“…In this context, distributed ledger technology and blockchain have gained recognition as innovative technologies providing reliable transaction records and decentralized platforms. Among them, internet of things application (IOTA) stands out as a project seeking to go beyond the limitations of blockchain, presenting a new direction [16]- [18]. IOTA tackles the constraints and fee issues of blockchain by introducing a unique distributed ledger technology called Tangle, flipping the existing paradigm [19]- [21].…”