报告题目：In Cell and Beyond Cell: A Variety of Interference Management Techniques

报告人： 朱旭 教授 哈尔滨工业大学(深圳)

报告时间：2024年07月12日（星期五）上午10：20-11：20

报告地点：42教学楼210会议室

主办单位：电子信息工程学院

听众对象：学生和教职工

报告人简介：

Xu (Judy) Zhu received the BEng degree in Electronics and Information Engineering from Huazhong University of Science and Technology, Wuhan, China, and the PhD degree in Electrical and Electronic Engineering from the Hong Kong University of Science and Technology, Hong Kong, China. She was a Reader of the University of Liverpool, Liverpool, UK. She is currently a Professor of Harbin Institute of Technology, Shenzhen, China. Her research interests include MIMO, channel estimation and equalization, ultra reliable low latency communication, full duplex communication, cooperative communication, green communication, etc. She has co-authored 2 books and more than 240 technical papers, and received a Best Paper Award of IEEE Globecom 2019. She is a Distinguished Lecturer of the IEEE Vehicular Technology Society. She has served as an Editor for the IEEE Transactions on Wireless Communications and a Guest Editor for several international journals such as Electronics. She has acted as a chair for various international conferences, including Program Chair of ICSAI 2012, Symposium Co-Chair of IEEE ICC 2016, ICC 2019 and Globecom 2021, Track Co-Chair of IEEE WCNC 2022, etc.

内容摘要：

The emerging cellular networks are expected to support massive connectivity with limited radio resources, where interference is one of the dominant performance affecting factors. In this speech, a variety of in cell and beyond cell interference management techniques are presented for cellular networks.

An integrated access and backhaul (IAB) system assisted by an in-band full duplex (FD) relay is presented to extend the cell coverage while maintaining low latency and high reliability, under strong self-interference (SI) due to FD transmission. Following a cost-effective partial SI cancelation at the FD amplify-and-forward relay, the residual SI may be treated as a useful source at base station (BS) to enhance the receiving diversity. The proposed adaptive interference utilization/cancelation scheme achieves a near optimal bit error rate performance and a superior performance in terms of throughput, energy utilization and resource utilization compared to the pervious work. To enhance interference utilization, a virtual multiple-input multiple-output (MIMO) system is modeled by utilizing the residual loopback SI and assisted by power amplifier gain control at FD relay, leading to higher robustness against SI.

Multi-cell interference management via coordinated multipoint (CoMP) transmission is presented for different scenarios. For a cellular vehicle-to-everything (C-V2X) based platoon system, CoMP is used to mitigate the interference at platoon handover between cells, alongside joint optimization of block length and transmission power. The platoon system achieves an optimal effective throughput at a significant complexity reduction over exhaustive search. For a general cellular network, a non-orthogonal multiple access (NOMA) system with coordinated BSs is presented. With multi-criterion user coordination mode selection and low-complexity joint resource allocation, the proposed system enables enhanced energy efficiency and spectral efficiency. The cell-edge users’ performance can be further enhanced by an unmanned aerial vehicle (UAV)-ground BS coordinated NOMA system, where the cell-edge users are jointly served by UAV and ground BS and under more flexible interference management, thanks to the deployment of UAV.