CAREER: Coordinated Resource Management in IP-based Cellular Radio Access Systems

在空中接口和回程网络中，考虑到许多挑战，包括有限的无线电频谱、无线电接入网络的高成本、不稳定的无线信道条件以及多样化和苛刻的服务质量要求，灵活而高效的资源管理势在必行。这项研究开发了一个全面的资源管理框架，用于在(最初基于码分多址的)无线电接入系统上无缝支持电路交换和分组交换业务。具体目标包括研究空中接口和IP-RAN中的基本资源分配问题，了解并结合实施资源管理时的多种交互，以及权衡最优与控制和管理开销。这项工作是一项广泛而雄心勃勃的工作的一部分，目的是从根本上提高对不同网络层和系统之间相互依赖的理解。具体的研究成果将包括开发新的跨层设计和优化技术，以及在各个层提高服务质量和能源效率。无线终端上强大的多媒体服务的增长正在对世界各地的社会产生深远的影响。这项研究的实际意义在于促进这些服务与互联网的集成，并使它们能够在不同的无线设备上无缝交付。反过来，这些服务的部署成本更低，覆盖范围更广，质量更高。最后，本研究将新颖的无线网络项目纳入本科生和研究生课程。

Flexible and efficient management of resources is imperative in the air interface and backhaul network, given the many challenges including the limited radio spectrum, high cost of radio access networks, volatile wireless channel conditions, and diverse and demanding QoS requirements. This research develops a comprehensive resource management framework for supporting both circuit-switched and packet-switched traffic seamlessly over an (initially CDMA-based) radio access system. Specific goals include studying the fundamental resource-allocation problems in the air interface and IP-RAN, understanding and incorporating the many interactions while implementing resource management, and trading-off optimality with control and management overhead. This work is part of a broad and ambitious effort to fundamentally advance the understanding of the inter-dependency between different network layers and systems. Specific research results will include the development of new cross layer design and optimization techniques, and the enhancement of QoS and energy efficiency at various layers. The growth of powerful multimedia services over wireless terminals is having a profound impact on societies across the world. The practical implication of this research is to facilitate the integration of these services with the Internet, and to enable their seamless delivery over different wireless devices. In turn, these services can be deployed with lower cost, and with increased reach and quality. Finally, this research brings novel wireless networking projects into the undergraduate and graduate curriculum.