End-to-End Quality in Multimedia Applications
Mark Claypool, John Riedl · 1998
Introduction The tremendous power and low price of today's computer systems have created the opportunity for exciting applications rich with graphics, audio and video. These new multimedia applications promise to support and even enhance the work we do in teams by allowing users to collaborate across both time and space. In order to live up to their potential, these multimedia applications must meet the performance needs of the users they support. Thus far, research in multimedia performance has been targeted mostly at the systems-level characteristics of performance. These characteristics, called Quality of Service (QoS), represent the set of quantitative and qualitative characteristics of a distributed multimedia system necessary to achieve the required functionality of an application. Typical QoS parameters deal with systemlevel requirements, such as a bound on network delay. Resource reservation schemes are also tied to system-level capacities, such as guaranteed network t