Abstract
This paper presents an evaluation of the perception of streaming multimedia quality when delivered over a limited bandwidth, third generation (3G) wireless data network. The study has three primary objectives: 1) measure the perceived quality of the multimedia experience as a function of frame rate, audio fidelity and data connection speed, 2) identify where the perceived quality of the multimedia experience shifts from being acceptable to unacceptable, and 3) identify the optimal combination of frame rate, audio fidelity and connection speed that provides the best customer experience. Analysis was conducted using Response Surface Methodology (RSM). RSM was used to identify how the three parameters of frame rate, audio stream bit rate and data connection speed interact and affect significant shifts in the perceived quality of the multimedia experience. Results identify the parameters and their characteristics that are related to shifts in the perceived quality across five types of multimedia content. The findings of this study are used to guide multimedia content developers on how to create (i.e., coding and encoding) multimedia content to ensure the best possible experience over limited bandwidth 3G wireless data networks. In addition, this research has implications for the design of future mobile data networks that will use quality of service technologies to ensure the best possible customer experience.
Get full access to this article
View all access options for this article.