新加坡南洋理工大学Kushal Anand博士学术报告

来源:信息科学与技术学院  作者:范平志  日期:2018-06-09  点击数:308

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):  IEEE Region 10 and MEMS Technology

报告专家(Speaker): Dr Kushal Anand, Nanyang Technological University (NTU), Singapore

报告时间(Time)13 June 20182:30-3:30pm (Wednesday)

报告地点(Venue)Room X9521#, Xipu Campus, SWJTU(犀浦校区9号楼X9521#会议室)

主持人(Chair):  Pingzhi Fan(范平志)

 

内容提要Outline of the Talk:

Beamformer Designs for the MIMO Interference Channels with Limited Channel Feedback

Highly accurate channel state information (CSI) is required to obtain the full throughput advantage of multi-antenna multi-user systems. Inaccurate CSI at the users can lead to severe performance degradation, and therefore suitable transmission techniques are required to improve the network throughput in the presence of inaccurate CSI. In this talk, beamforming techniques are considered for the multiple-input-multiple-output interference channel with imperfect channel feedback at the transmitters. An analytical expression for the upper bound on the total rate loss due to limited channel feedback is derived. The rate loss is a function of the total feedback budget available to the receiver, the strength of the desired and the interfering links at the users and the network parameters. This rate loss upper bound metric is then minimized at each receiver locally by allocating the feedback bits optimally among the links observed by it. It is found that with limited channel feedback budget at the users, interference alignment may not be the appropriate beamforming strategy. Based on the feedback bit allocation policy to minimize the rate loss upper bound at the receiver and the corresponding channel quantization error statistics at the transmitter, an improved beamformer design is proposed which can significantly enhance the network throughput.

 

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

Dr Kushal Anand , NTU, Singpore ( email: KUSH0005@e.ntu.edu.sg)

Kushal Anand received his Bachelor of Technology in Electronic Engineering from the Indian Institute of Technology (Indian School of Mines), Dhanbad, India, Master of Engineering (M.Eng.) and PhD from the School of Electrical and Electronic Engineering (EEE), Nanyang Technological University (NTU), Singapore. Currently, he is a post-doctoral research staff with the School of EEE, NTU and a visiting researcher to the Institute of Mobile Communications, Southwest Jiaotong University. His research interests include transmission techniques for high mobility wireless channels, interference management in wireless networks with inaccurate channel information, multi-user wireless communications, signal processing and optimization for communication systems.