Assessing Wireless Screen-Casting Services: A Comprehensive Quality of Experience Model

Wireless Screen-casting service becomes popular due to its simple and convenient features. However, the quality of experience (QoE) for this service is easily affected by encoding, transmission, and display. Currently, research on end-to-end systematic QoE evaluation for wireless screen-casting services remains insufficient. With this regard, this paper conducts a series of subjective experiments to explore the impact of end-side and network factors on user's QoE, where the end-side factors mainly include the video encoding bitrate and the scaling ratio of video, while the network factors include the screen-casting stalling and end-to-end delay. Then, a comprehensive QoE evaluation model is further proposed combining both end-side and network factors. Experimental results showed that the proposed model can accurately predict user's QoE of wireless screen-casting services. This work can be served as a guideline for service providers and network operators to improve their services.