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

考虑到无线电频谱有限、无线接入网络成本高、无线信道条件不稳定以及QoS要求多样化等诸多挑战，在空中接口和回程网络中，灵活有效的资源管理势在必行。本研究开发了一个全面的资源管理框架，用于在（最初基于cdma的）无线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，在实现资源管理时理解并整合许多交互，以及在控制和管理开销之间权衡最优性。这项工作是一项广泛而雄心勃勃的努力的一部分，旨在从根本上促进对不同网络层和系统之间相互依赖关系的理解。具体的研究成果将包括开发新的跨层设计和优化技术，以及提高各层的QoS和能效。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是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，这些服务可以以更低的成本部署，并提高覆盖范围和质量。最后，本研究将新颖的无线网路专案引入大学部及研究生课程。

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.