Title :
Optimal bandwidth-buffer trade-off for VBR media transmission over multiple relay-servers
Author :
Chang, R.I. ; Chen, M.C. ; Ko, M.T. ; Ho, J.M.
Author_Institution :
Inst. of Inf. Sci., Acad. Sinica, Taipei, Taiwan
Abstract :
Given a client buffer the minimum bandwidth required to transmit a pre-recorded VBR media can be computed in O(n) (n is the frame number). As n is usually very large, this resource management procedure is not suitable for online computation. We have proposed an O(nlogn) algorithm to characterize the bandwidth-buffer tradeoff for the optimal resource management. However, it cannot be applied to a general multimedia network with multiple relay-servers. In this paper, we extend our problem model to consider relay-servers. In each relay-server, an O(nlogn) algorithm is proposed to decide the optimal bandwidth-buffer trade-off. With these pre-computed tradeoff functions, an O(m) QoS control procedure is designed to allocate the suitable bandwidth for the available buffer, where m is the number of relay-servers in the assigned transmission path
Keywords :
bandwidth allocation; buffer storage; multimedia communication; multimedia servers; resource allocation; variable rate codes; VBR media transmission; bandwidth allocation; client buffer; multimedia network; multiple relay-servers; online computation; optimal bandwidth-buffer trade-off; pre-computed tradeoff functions; resource management; Algorithm design and analysis; Bandwidth; Delay effects; Information science; Network servers; Optimal control; Processor scheduling; Relays; Resource management; Streaming media;
Conference_Titel :
Multimedia Computing and Systems, 1999. IEEE International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7695-0253-9
DOI :
10.1109/MMCS.1999.778134