Adaptive Multimedia Content Delivery in Ubiquitous Environments

Due to the dramatic technology development in Internet and wireless communication, it becomes possible to access multimedia contents and services using handheld devices. However, most multimedia contents and services on the Web are optimized for desktop computing environment. Even though multimedia contents can represent rich semantics, they are not suitable for handheld devices with limited resources and computing capabilities. Moreover, depending on user preference or usage scenarios, not all the data are relevant or critical to the application. In this paper, we present an adaptation scheme of multimedia contents on the wireless devices for QoS-aware delivery. Especially, we seek to adapt multimedia contents based on available system and network resources, client terminals, user preferences and some other environmental characteristics.