Multicell Coordinated Scheduling With Multiuser Zero-Forcing Beamforming


Abstract: Coordinated scheduling/beamforming (CS/CB) is a cost-effective coordinated multipoint (CoMP) transmission paradigm that has been incorporated in the recent Long Term Evolution cellular standard. In this talk, we consider CS/CB with the aim of developing low-complexity multicell coordinated user scheduling policies. We focus on a class of multicell interfering broadcast networks, in which base stations have only local data and local channel state information, but each has sufficient antennas to serve multiple users using zero-forcing beamforming. The coordination problem is formulated as finding scheduling decisions across the cells such that the network sum rate is maximized. Starting from the two-cell model, we uncover the structure for a good scheduling decision, which in turn leads to the definition of two distributed scheduling policies of differing complexity and inter-cell coordination. Asymptotic theoretical bounds on the average sum rate are derived to predict the performance of the policies proposed. We extend to some example networks containing more than two cells and develop network-wide coordination policies. Numerical results confirm the effectiveness of the proposed policies and shed light on practical coordinated system design.

Min Li received the B.E. degree in telecommunications engineering, the M.E. degree in information and communication engineering from Zhejiang University, Hangzhou, China, and the Ph.D. degree in electrical engineering from Pennsylvania State University, State College, PA, USA, in 2006, 2008, and 2012, respectively. Since September 2012, he has been a Research Fellow in wireless communications with the Department of Engineering, Macquarie University, Sydney, Australia. He has also been a Visiting Scientist at Australian Commonwealth Scientific and Industrial Research Organisation (CSIRO) between April 2013 and April 2015.

His research interests include network information theory and coding theory, cooperative communications, multiuser MIMO, millimeter-wave communications, and optimization techniques. He has served as a Technical Program Committee (TPC) Member for several prestigious IEEE international conferences such as the IEEE ICC, the GLOBECOM and the VTC. He was also on the organizing committee of the 15th Australian Communications Theory Workshop (AusCTW) hosted by Macquarie University.

Guest Lectuer: Dr. Li Min

Date and Time:  9:45am-10:30am, Jan. 8, 2016   

Location: Room 108, Administration Building, Yuquan Campus

Audience: Faculty/Staff, Students

Category: Lecture

Sponsor: College of Information Science & Electronic Engineering, Zhejiang University


Admission: Free