英国Leeds大学Li X Zhang博士学术报告

来源:信息科学与技术学院  作者:范平志  日期:2019-09-24  点击数:449

西南交通大学创源大讲堂

Innovative Source Lecture Hall, Southwest Jiaotong University

无线通信与信息编码前沿系列讲座

Lecture Series: Frontiers in Wireless Communications & Information Coding

报告题目(Title): Challenges in 5G Heterogeneous Ultra Dense Network

报告专家(Speaker): Dr Li X Zhang, School of EEE, the University of Leeds, UK

报告时间(Time)2019925日,周三下午2:30-3:30pm

报告地点(Venue)西南交通大学犀浦校区9号楼X9521#会议室

主持人(Chair): 范平志Pingzhi Fan)


内容提要Outline of the Talk:

Challenges in 5G Heterogeneous Ultra Dense Network

An ultra-dense deployment of small cells is foreseen as the solution to cope with the exponential increase of the data rate demand targeted by the 5G network. The deployment of a layer of smaller cells (such as pico cells, Femto cells, micro cells etc) under an existing macrocell layer will create a multi-layer network of varying cell sizes often called a Heterogeneous Network or HetNet for short, and leads to new challenges compared to macro-only scenarios. For example, optimal deployment of small cells, synchronisation issues, interference and more frequent handovers etc. The performance of HetNet will depend on how scarce resources such as frequency, time, power and spatial resource are shared among user equipments (UEs) in the system and also how interference is controlled. The synchronization and handover problems must be addressed to achieve the potentials of HetNet.  Self-Organising Network (SON) based methods can be employed to maximise the traffic offloaded from the macrocell layer onto the microcell layer. This talk will present a selection of our research carried out to tackle the challenges in 5G Heterogeneous Ultra Dense Network with a focus on our recent research on mobility-related challenge of handover (cell selection).


报告人简介(Short Biography of the Speaker):

Dr Li X Zhang, the University of Leeds, UK ( https://engineering.leeds.ac.uk/staff/341/Dr_Li_X_Zhang)

Li Zhang is an Associate Professor in Communications at the school of Electronic and Electrical Engineering, University of Leeds. Dr. Zhang did her PhD in Communications at the University of York from Feb. 2000 to Feb. 2003. Currently she leads the Wireless Communication Group within the Institute of Communication and Power Networks (ICaPNet). Her research interest is focused on wireless communications and signal processing techniques, including massive MIMO, mmWave communications, Heterogeneous Network, Spatial modulation, Device to Device communications and 5G systems etc. Her research group is also interested in the challenges in wireless communications for high speed railway systems. She has served on the Technical Programme Committees of most major IEEE conferences in communications since 2006 and is an associate editor of IEEE journal. She has been selected as a member of the prestigious UK EPSRC Peer Review College since 2006 and served as EPSRC panel member. She is also a grant application reviewer of Qatar National Research Fund and Czech Science Foundation. She has been PhD examiner for numerous Universities inside and outside the UK and also an external examiner for MSc courses in other UK universities. In 2005, she received a Nuffield award for a newly appointed lecturer. In 2006, she became a fellow of Higher Education Academy. In 2011, she was awarded as IEEE exemplary reviewer and in 2012 she was promoted as senior IEEE member.