Using proxy cache relocation to accelerate Web browsing in wireless/mobile communications
Proceedings of the 10th international conference on World Wide Web
Network support for mobile multimedia using a self-adaptive distributed proxy
NOSSDAV '01 Proceedings of the 11th international workshop on Network and operating systems support for digital audio and video
Supporting the WWW in wireless communications through mobile agents
Mobile Networks and Applications
Characterization of MPEG-4 Traffic over IEEE 802.11b Wireless LANs
LCN '02 Proceedings of the 27th Annual IEEE Conference on Local Computer Networks
A Distributed Proxy Server System for Wireless Mobile Web Service
ICOIN '01 Proceedings of the The 15th International Conference on Information Networking
Extended Internet caching protocol: a foundation for building ubiquitous Web caching
Proceedings of the 2003 ACM symposium on Applied computing
Composable proxy services to support collaboration on the mobile Internet
IEEE Transactions on Computers
A survey on the techniques for the transport of MPEG-4 video over wireless networks
IEEE Transactions on Consumer Electronics
Multicasting streaming media to mobile users
IEEE Communications Magazine
Content-based FGS coding mode determination for video streaming over wireless networks
IEEE Journal on Selected Areas in Communications
Scalable, error-resilient, and high-performance video communications in mobile wireless environments
IEEE Transactions on Circuits and Systems for Video Technology
Adaptive motion-compensation fine-granular-scalability (AMC-FGS) for wireless video
IEEE Transactions on Circuits and Systems for Video Technology
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With the advancement of mobile technologies, more and more mobile devices are designed for multimedia streaming services. A server-proxy-client network architecture is usually adopted to improve the quality of multimedia streaming services. However, proxy servers not only cache data for reducing the waiting time, but also tackle the user mobility in the IPv6 mobile networks. We assume that a mobile client is moving from subnet to subnet. If the mobile client connects to the same proxy all the way, then the transmission quality will become worse gradually. Thus, the mobile client should switch to a new proxy when it moves to a new subnet. In this paper, the procedure of switching the served proxies dynamically is defined as ''proxy handoff''. In order to make proxy handoff smoothly, a Layered Video Forwarding Mechanism (LVFM) based on IPv6 multicast and scalable MPEG-4 streaming is proposed and implemented. LVFM can analyze the situation of cached data in the original proxy and the new proxy and then decide whether the original proxy needs to forward the cached data to the new proxy or not. Once the forwarding procedure is required, LVFM can forward the cached video frames according to the priority of each layer. LVFM forwards these layers as long as the forwarding time can be done before the corresponding layers' presentation time is due. In order to verify the proposed LVFM, three experiments are designed and the experiment results are also presented in this paper.