CAREER: Internet Resource Management to Deliver High Quality Live and On-demand Streaming for Wireless Clients

无线互联网流受到许多障碍的阻碍，这些障碍源于无线设备上有限的可用资源。现有的解决方案通常需要额外的基础设施支持，或者在用户感知的流媒体质量和无线设备上的资源消耗之间寻求折衷。相比之下，快速增长的互联网资源没有得到充分和很好的利用。CAREER项目的主要目标是为互联网和无线网络的资源管理奠定科学基础。具体而言，将设计算法和系统，以有效利用现有丰富的未充分利用或空闲的互联网资源，提高无线设备上基于服务器和基于p2p的点播和直播的流媒体性能。为此目的，利用未充分利用的Internet资源（例如，带宽）和应用程序通信模式来最小化数据传输功率，而不会降低应用程序的性能。此外，利用空闲的对等计算资源，设计新的分布式在线内容适应方案来解决无线设备的多维异构性。此外，利用未使用的隐蔽通信信道和应用特性，设计了一套新的安全保护方案，以满足未来无线互联网流媒体服务的需求。通过该CAREER项目开发的高效互联网资源管理技术有望解决无线互联网流媒体中的这些关键问题，并使普及和高质量的无线互联网流媒体访问成为现实。

Wireless Internet streaming is hindered by a number of obstacles that are rooted from limited available resources on wireless devices. Existing solutions commonly demand additional infrastructure support or seek a trade-off between user perceived streaming quality and resource consumption on wireless devices. In contrast, there are fast growing Internet resources that are not fully and well utilized.The main objective of this CAREER project is to layout scientific foundations on resource management in Internet and wireless networks. Specifically, algorithms will be designed and systems will be implemented to effectively utilize the existing abundant under-utilized or idle Internet resources to improve the streaming performance on wireless devices for both server-based and P2P-based on-demand and live streaming. For this purpose, the under-utilized Internet resources (e.g., bandwidth) and application communication patterns are being leveraged to minimize data transmission power without degrading the application's performance. Furthermore, idle peer computing resources are being utilized and novel distributed online content adaptation schemes are being designed to address multi-dimensional heterogeneity of wireless devices. In addition, the unused covert communication channel and application characteristics are being exploited to design a set of new security protection schemes to satisfy the demand of future wireless Internet streaming services.The efficient Internet resource management techniques to be developed through this CAREER project are expected to address these critical issues in wireless Internet streaming and to enable pervasive and high-quality wireless Internet streaming accesses a reality.