Title :
Degree Pre-Reserved Hierarchical Tree for Multimedia Multicast
Author :
Zhang, Nan ; Shi, Yuan-Chun ; Chang, Bin
Author_Institution :
Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing
Abstract :
Overlay multicast tree is widely used to support large-scale real-time multimedia applications. The scalability and the robustness are two key issues in the overlay structure design. In this paper, we propose a degree pre-reserved hierarchical tree for multimedia multicast, called DTree. It organizes the overlay tree in two hierarchies, and combines application-level multicast with IP multicast to achieve a low delay data delivery. A degree pre-reserved mechanism is designed in DTree, which greatly shortens the time to resume the data flow, and achieve a fast recovery. Our simulation results show that DTree has a better delivery performance, compared with other overlay tree. It is quite responsive to the changes in the tree, and almost 3 times faster than other recovery strategies in some cases
Keywords :
IP networks; multicast communication; multimedia communication; trees (mathematics); DTree; IP multicast; application-level multicast; degree prereserved hierarchical tree; multimedia multicast; overlay tree; Application software; Computer science; Delay; Large-scale systems; Resumes; Scalability; Spine; Topology; Unicast; Videoconference;
Conference_Titel :
Multimedia and Expo, 2006 IEEE International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
1-4244-0366-7
Electronic_ISBN :
1-4244-0367-7
DOI :
10.1109/ICME.2006.262754
