ITR: System Support for Mobile Multimedia and Web Applications

随着具有无线功能的移动的设备的日益普及，在将有线Internet应用的功能扩展到无线领域方面提出了新的基本挑战。本项目将研究基于代理的技术，以实现下一代移动多媒体和Web应用程序。拟议的研究将集中在三个特点的移动的环境，即客户端的移动性，间歇性连接，和资源贫乏的性质的移动的设备。在这个项目中，将解决的研究问题包括（i）功率友好的流技术和移动的多媒体应用程序的实时缓存，以及（ii）缓存和传播的时变和位置依赖的数据访问的移动的网络应用程序。 所提出的技术将使用模拟，分析和原型实现的混合进行评估。这项研究的重要性来自于移动的设备的广泛和日益增长的使用，这些设备提供了无处不在的无线访问互联网上的数据。 这项研究的潜在影响将是推动下一代移动的多媒体和Web应用程序基于代理的基础设施的发展。

The growing popularity of mobile devices with wireless capabilitiesimposes new and fundamental challenges in extending the capabilitiesof wired Internet applications to the wireless domain. This project willinvestigate proxy-based techniques for enabling the next generation ofmobile multimedia and web applications. The proposed research will focus onthree characteristics of mobile environments, namely client mobility,intermittent connectivity, and resource-poor nature of mobile devices. Research issues that will be addressed in this project include(i) power-friendly streaming techniques and real-time handoffs formobile multimedia applications, and (ii) caching and dissemination oftime-varying and location-dependent data accessed by mobile webapplications. The proposed techniques will be evaluated using aneclectic mix of simulation, analysis and prototype implementation. Thesignificance of the proposed research arises from the widespread andgrowing use of mobile devices that provide ubiquitous, wireless accessto data on the Internet. The likely impact of this research will beto advance the state of the art in proxy-based infrastructures fornext-generation mobile multimedia and web applications.