Multi-tier mobile resource management for broadband wireless communication

由于不断升级的智能手机和移动的设备数量不断增加，目前在加拿大和世界各地部署的3G无线系统已经显示出与数据饥渴的多媒体应用程序的增长保持同步的压力。目前正在开发的4G无线标准承诺无线数据速率的大幅增加，对于各种移动的和固定用户，无线数据速率为100 Mbps至1 Gbps。这是通过利用新的多层网络架构来实现的，其中不同大小和容量的多层重叠小区共存以提供通用宽带服务。与最近提出的采用异构无线技术（如3G-WLAN集成）的网络设计相比，这种新的4G架构允许跨不同层使用相同的许可频谱，以提供更有效的网络控制和无缝的用户体验。最近在异构网络方面的研究工作越来越多，但大多数都没有考虑当前4G范式中的新挑战，也没有提供基于严格数学的合理设计指南。该研究计划的主要目标是创建新的理论和技术，以实现4G多层环境中的整体跨层资源管理优化方法。一个特别的重点将放在开发仔细的数学建模和分析框架的新系统，导致原来的见解和创新的解决方案。我们将探讨在新的多层框架的移动性建模，准入控制和传输数据速率自适应。该计划的成果有望为未来无线通信网络的新标准和设计策略带来实质性进展。该项目还将为加拿大高科技经济的持续发展培训电信研究人员和工程师。

Overwhelmed by an ever increasing number of constantly upgraded smart phones and mobile devices, the 3G wireless systems current being deployed in Canada and around the world are already showing strain in keeping pace with the growth of data-hungry multimedia applications. The 4G wireless standards currently under development promise great increases in the wireless data rate, at 100 Mbps to 1 Gbps for a variety of mobile and stationary users. This is achieved by utilizing a new multi-tier network architecture, where multiple levels of overlapping cells of different sizes and capacities co-exist to provide universal broadband services. In contrast to recent proposals of networking design with heterogeneous wireless technologies, such as the 3G-WLAN integration, this new 4G architecture allows the same licensed spectrum across different tiers to provide more efficient network control and seamless user experience. There is a body of growing recent research efforts in heterogeneous networking, but most have not considered the new challenges in the current 4G paradigm or provided sound design guidelines based on rigorous mathematics. The main goal of the proposed research program is to create new theories and technologies toward a holistic cross-layer approach for optimal resource management in the 4G multi-tier environment. A special focus will be placed on developing careful mathematical modeling and analysis frameworks for the new system, leading to original insights and innovative solutions. We will investigate into mobility modeling, admission control, and transmission data rate adaptation in the new multi-tier framework. The outcomes of this program are expected to bring substantial advances toward new standards and design policies for future wireless communication networks. It will also enable the training of telecommunication researchers and engineers for sustained development of the Canadian high-tech economy.