Title

A cross-layer framework for video-on-demand service in multi-hop WiMax mesh networks

Authors

Authors

F. Xie; K. A. Hu;N. Jiang

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Comput. Commun.

Keywords

wireless mesh network; WiMax; video-on-demand; cross-layer design; simulation; Computer Science, Information Systems; Engineering, Electrical &; Electronic; Telecommunications

Abstract

In this work, we introduce a cross-layer framework to favor the video-on-demand service in multi-hop WiMax mesh networks. We first propose a joint solution of admission control and channel scheduling for video streams. The proposed approach guarantees that the required data rate is achieved for video streams, which is crucial for multimedia streaming applications. An efficient and light-weight multicast routing technique is also proposed to minimize the bandwidth cost of joining a multicast tree. Furthermore, we adopt the Patching technique in the application layer to improve the capacity of the video server. Overall, the quality of the video-on-demand service is dramatically improved with the help of the efficient cooperation between the techniques proposed in different layers of the network. Simulation study shows that with the proposed approach, true video-on-demand in WiMax mesh networks can be achieved under high video request arrival rate. (C) 2008 Elsevier B.V. All rights reserved.

Journal Title

Computer Communications

Volume

31

Issue/Number

8

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

1615

Last Page

1626

WOS Identifier

WOS:000256856700013

ISSN

0140-3664

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