Approaches to multimedia traffic management and control
Abstract
This thesis discusses several different approaches to managing and controlling the transmission of multimedia data over the networks. It first identifies the adaptability features in different parts of the data transmission process. It then proposes a multipass transmission scheme to transport multimedia data effectively over the existing network infrastructure. Experiments and analysis show that the approach can achieve satisfactory reliability for multimedia data without sending data aggressively. This thesis then investigates techniques, using the Active Network paradigm, to solve the multimedia data transmission problem. A fragmentation scheme is proposed to address the unique needs of active networks and utilize the special properties the new infrastructure provides. A formal model of active techniques is proposed and analyzed. A new measure to quantify the Quality of Service (QoS) received by the application is introduced. Experiments show that it can provide a more accurate assessment of the user-perceived QoS than other commonly used measures. Issues related to virtual machine designs in active network architectures are also discussed. Finally, this thesis proposes an adaptable network architecture which allows different QoS provision schemes such as Active Network, Integrated Services and Differentiated Services to co-exist. This architecture enables both the application programs and the networks to adapt and perform the task of traffic management and control together.
Degree
Ph.D.
Advisors
Bhargava, Purdue University.
Subject Area
Computer science
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