Low-cost, application-aware, high-fidelity methods for 5G systems and beyond

移动网络目前正处于一个前所未有的流量增长和消费者兴趣的时代。为了解决带宽供需不匹配的问题，即将到来的第五代（5G）网络的能力和可靠性必须提高几个数量级。这需要越来越多样化的技术，包括异构网络、致密化、大规模多输入多输出（MIMO），以及可能的毫米波系统。此外，在下一代，移动网络将需要维持新形式的流量，例如许多，可能数以百万计的低功耗设备相互通信。**既要满足5G网络需求，又要放眼未来，挑战巨大。最近的许多研究都是从设备供应商的角度来关注无线网络的设计，但相对而言，很少有人关注无线供应商的问题，比如我们的工业合作伙伴TELUS。像TELUS这样的服务提供商必须应对不断增长的应用和用户需求的广泛变化，例如可能出现的低速率物联网（IoT）[3]、设备到设备（D2D）通信[5]、语音（4G LTE提供voice - on -LTE或VoLTE）[5]，以及超高速率增强型多媒体广播。**在本提案中，我们通过两个研究主题直接解决这些挑战：在第一个主题中，我们将研究使用非授权频段的几个关键方面，这些频段既可以免费使用，又可能提供比传统授权频段更多的带宽。我们将解决干扰传统业务的关键问题，以及在物联网和D2D通信等新业务中使用未经许可的频段。在我们的第二个主题中，我们将从两个角度研究许可频谱的优化使用-有效的应用感知资源分配和研究大规模无线网络中的实际问题。＊＊＊＊＊＊

Mobile networks are currently in an era of unprecedented traffic growth and consumer interest. To account for the mismatch between bandwidth supply and demand, the upcoming fifth generation (5G) of networks must be orders of magnitude more capable and reliable. This is expected to require increasingly diversified technologies, including heterogeneous networks, densification, massive multiple-input, multiple output (MIMO), and possibly millimeter-wave systems. Moreover, in the next generation, mobile networks will be required to sustain new forms of traffic such as many, potentially millions of, low-power devices communicating with each other.**Meeting the requirements of 5G networks, and looking beyond 5G, raises enormous challenges. Much of the recent research has focused on the design of wireless networks from an equipment vendor's perspective, but relatively little has focused on the problems of wireless providers, such as our industrial partner, TELUS. Service providers like TELUS must contend with a growing proliferation of applications and wide variations in users' demands, such as likely low-rate internet of things (IoT) [3], device to device (D2D) communication [4], voice (4G LTE provides for Voice-over-LTE or VoLTE) [5], and extremely high-rate enhanced multimedia broadcast. **In this proposal, we directly address these challenges pursuing two research themes: in the first theme, we will investigate a few key aspects of in the use of unlicensed bands, which are both free to use and potentially provide more bandwidth than conventional licensed bands. We will address the key issue of interference for conventional services and the use of unlicensed bands for new services like IoT and D2D communications. In our second theme, we will investigate optimizing the use of licensed spectrum from two points of view - effective application aware resource allocation and investigating practical issues in large-scale wireless networks. ******