Reconfigurable Intelligent Surfaces Based Future Wireless Communications

在过去的几十年里，移动通信经历了一代又一代的变化。每一代移动通信的性能都明显优于前一代，从而满足日益增长的更高数据速率和更好连接的需求。然而，随着大量新的数据饥渴型应用程序和服务的引入，这些需求将继续呈指数级增长，这将使未来通信系统的设计变得极具挑战性。与未来无线通信系统设计相关的挑战不能仅仅通过改进收发器设计来解决。实际上，提高无线信道性能的主要瓶颈是不可控的衰落通信信道。因此，如果对通信信道进行改进，就可以满足未来无线通信的要求。可重构智能表面（RIS）技术是近年来的一项技术突破，可以动态改变通信信道。我的研究计划侧重于将该技术作为候选解决方案，以满足未来无线通信对更高数据速率、更好连接和改进最终用户体验的前所未有的需求。我的研究计划的长期目标是探索新的策略，以满足下一代无线通信系统的需求。为了实现这一目标，我提出的研究计划有以下三个短期目标：1)RIS与最先进的无线技术的集成；2)基于ris的无线通信调制编码；3)基于ris的通信系统性能分析。该研究计划将为参与研究的人员提供一个学习无线通信领域先进技术和获得新技能的有利环境，从而帮助他们在未来的职业生涯中脱颖而出。该研究项目的发现还可能导致为下一代无线通信设计的许多新服务和应用，这可能会提高加拿大经济的竞争优势。

Mobile communications have been undergoing generation changes over the past few decades. Each generation of mobile communications performs significantly better than its predecessor thus meeting the ever-increasing demands of higher data rate and better connectivity. These demands, however, continue to increase exponentially, which, with the introduction of plethora of new data-hungry applications and services, are going to make the design of future communication systems extremely challenging. The challenges associated with the design of future wireless communication systems cannot be addressed by improving the transceiver design alone. In fact, the major bottleneck in improving the performance of a wireless channel is the uncontrollable fading communication channel. As such, the requirements of future wireless communications can be met if the communication channel can be improved as well. Reconfigurable intelligent surface (RIS) technology is a recent technological breakthrough that can dynamically alter the communication channel. My research program focuses on this technology as a candidate solution to meet the unprecedented demands of significantly higher data rate, better connectivity and improved end-user experience for future wireless communications. The long-term objective of my research program is to explore novel strategies to meet the demands of the next generations of wireless communication systems. To achieve this goal, my proposed research program has the following three short-term objectives: 1) integration of RIS with the state-of-the-art wireless technologies; 2) RIS-based modulation and encoding for wireless communications; and 3) performance analysis of RIS-based communication systems. The proposed research program will provide a conducive environment to the researchers involved for learning advanced techniques and acquiring new skills in the field of wireless communications, thus helping them excel in their future careers. The findings of the research program may also result in many new services and applications designed for the next generations of wireless communications, which might improve the competitive edge of the Canadian economy.