VoicePerf: A Quality Estimation Approach for No-reference IP Voice Traffic

The growing scale of Voice over LTE deployments as well as the wide spread of Internet voice services increase the demand for their user centric service quality monitoring. The primary question in this domain is how a provider can monitor the quality of user experience without executing subjective assessments or applying the common full reference objective quality models. While the former is time and resource consuming and typically performed ad-hoc, the latter requires a reference source, and by processing the voice data it may offend user privacy.In this paper, we introduce a novel packet-level measurement method (including a novel metric set) to measure network and service quality online. It is done without inspecting the voice payload and needing for the reference voice source. The performance of the proposed model is validated against a full reference voice quality estimation model called AQuA, using real VoIP traffic (generated from various voice samples) in controlled network scenarios.