时间：2017年4月25日（星期二）下午2:00

地点：无线谷1319会议室

报告人：Prof. Julian Cheng，The University of British Columbia

讲座题目：

1.Energy Efficient Resource Allocation for Non-Orthogonal Multiple Access (NOMA) Wireless Networks

2.How to Write an IEEE Style Paper and Get it Published?

Title1:

Energy Efficient Resource Allocation for Non-Orthogonal Multiple Access (NOMA) Wireless Networks

Abstract:

Non-orthogonal multiple access (NOMA) is a promising technique for the fifth generation mobile communication due to its high spectral efficiency. By applying superposition coding and successive interference cancellation techniques at the receiver, multiple users can be multiplexed on the same subchannel in NOMA systems. Previous works focused on subchannel assignment and power allocation to achieve the maximization of sum rate; however, the energy-efficient resource allocation problem has not been well studied for NOMA systems. In the first part of this talk, we first discuss the energy efficient resource allocation for NOMA system with perfect channel state information (CSI). For this problem, we aim to optimize subchannel assignment and power allocation to maximize the energy efficiency for the downlink NOMA networks. We propose a low-complexity suboptimal algorithm which includes energy-efficient subchannel assignment and power proportional factors determination for subchannel multiplexed users. In the second part of this talk, we investigate energy efficiency improvement for a downlink NOMA single-cell network by considering imperfect CSI. The energy-efficient resource optimization problem is formulated as a non-convex optimization problem with the constraints of outage probability limit, the maximum power of the system, the minimum user data rate and the maximum number of multiplexed users sharing the same subchannel. A new suboptimal user scheduling scheme is proposed to schedule users on different subchannels. Based on the user scheduling scheme, the optimal power allocation expression is derived by the Lagrange approach. Simulation results demonstrate that the proposed user scheduling algorithm closely attains the optimal performance.

Title2:

How to Write an IEEE Style Paper and Get it Published?

Abstract:

Institute of Electrical and Electronics Engineers (IEEE) is world’s largest professional association which is best known, among other engineering disciplines, for its high quality flagship journal and conference publications. For electrical engineering graduate students and researchers, it is increasingly important to publish their research findings in core IEEE journals and conferences. However, most top IEEE journals and conferences typically have acceptance rate at 35% or much less, and it is also rare that a manuscript receives an outright acceptance. In this talk, I will introduce basic elements of an IEEE style paper, and offer some personal tips and strategies on how to improve the odds of acceptance. The goal of this presentation is to provide the proper guidance to the beginning graduate students so that, with some practice, they can write an IEEE style paper with high confidence. These graduate students can then focus more on the technical contributions of their work.

Speaker’s Bio:

Julian Cheng received his PhD degree in electrical engineering from the University of Alberta, Edmonton, AB, Canada. He is currently a Full Professor (with tenure) in the School of Engineering at The University of British Columbia, Okanagan campus in Kelowna, BC, Canada. His current research interests include wireless communication theory, wireless networks, optical wireless communications, and quantum communications. Dr. Cheng has served as a member oftechnical program committee for many IEEE conferences and workshops. He co-chaired the 12th Canadian Workshop on Information Theory (CWIT 2011) in Kelowna, Canada. In 2012, he chaired the 2012 Wireless Communications in Banff, Canada.Dr. Cheng also chaired the sixth IEEE Optical Wireless Communications Symposium at the 2015 IEEE Global Communications Conference. Currently, he serves as an Editor forIEEE Transactions on Communications,IEEE Transactions on Wireless Communications,IEEE Communications Letters,IEEE Access, as well as a Guest Editor for a special issue ofIEEE Journal on Selected Areas in Communicationson optical wireless communications.