The fifth generation (5G) and beyond networks are expected support mission critical ultra-reliable and low-latency communications (URLLC) services. This presentation first introduces the role of URLLC plays in the 5G and beyond era. Then the various sources of end-to-end delay in current wireless networks are described. After this, some promising techniques to support low latency and ultra-high reliability services are envisaged. Motivated by the importance of URLLC, a recent research work on the optimal design of short-packet communications (SPC) in a multiple-input single-output system is presented. Specifically, the optimal allocation of finite resources (e.g. the total transmit power and a finite number of symbol periods) for downlink training, uplink feedback and data transmission is determined to maximise the average data rate. The outcomes of this research work provide a guideline to assist URLLC designers with the fundamental problem of transmit power and symbol period allocation to guarantee the advantage of SPC in practice.
Dr. Nan Yang received his Ph.D. degree from Beijing Institute of Technology in 2011. Since July 2014, he has been with the Research School of Electrical, Energy and Materials Engineering at the Australian National University, Canberra, Australia, where he is currently a Senior Lecturer and the Associate Dean (High Degree Research) of the College of Engineering and Computer Science. He received the IEEE ComSoc Asia-Pacific Outstanding Young Researcher Award in 2014. Also, he is the co-recipient of Best Paper Awards at the IEEE GlobeCOM 2016 and the IEEE VTC Spring 2013. He is currently serving on the editorial board of the IEEE Transactions on Wireless Communications, IEEE Transactions on Molecular, Biological, and Multi-Scale Communications, IEEE Transactions on Vehicular Technology, and Wiley’s Transactions on Emerging Telecommunications Technologies. His research interests include massive multiple-antenna systems, millimetre wave and terahertz communications, heterogeneous wireless networks, ultra-reliable and low-latency communications, cyber-physical security, and molecular communications.