Visit ShanghaiTech University | 中文 | How to find us
HOME > News and Events > Events
Mobile Networks: Yesterday, Today and Tomorrow
Date: 2015/4/22             Browse: 760

Speaker:Chunyi Peng

Time: Apr. 22th, 15:00-16:00

Location: Room 220, Building 8, Yueyang Road Campus


Today, mobile networks (4G/3G) have undoubtedly acted as one most critical network infrastructure for almost everyone and every mobile device on the globe. We can't live or even imagine living without them, from basic voice calls and messaging services to WeChat, Youku, Taobao, Baidu, DiDi to everything on Mobile Internet. Pervasive connectivity is the fundamental service empowered by mobile networks. To meet increasing user demands, in the past decades, mobile networks have been greatly evolving toward faster and better network infrastructure with larger capacity, higher speed, lower latency, greener design, wider service support, etc. While new techniques or well-established technique updates are deployed to fulfill new features, they also bring side-effects likely unanticipated to this evolution.

In this talk, I would like to present two instances which occur as the mobile networks evolves from 2G to 3G and from 3G to 4G. First, I will show you how seemly reasonable mobile data charging is vulnerable to real threats to mobile users and operators. Second, I will show how well-established protocols in the past can't function right, or at least as unexpected. When we look forward,  we are moving to a fully mobile and connected society in the nearly future to come. Huge research opportunities are ahead of us, not only on realizing more advanced or even transformative techniques (\eg, 5G), but also on ensuring their  functionality, reliability and security in tomorrow's mobile networks.


Chunyi Peng is an Assistant Professor in the Department of Computer Science and Engineering at the Ohio State University. She received her Ph.D in Computer Science at University of California, Los Angeles in 2013. Prior to UCLA, she had worked as an associate/assistant researcher in the Wireless and Networking Group at Microsoft Research Asia (MSRA) between 2005 and 2009.  Her research interests are in the broad areas of mobile networking, system and security, with a focus on 3G/4G mobile networks and future mobile networks, mobile sensing systems, , wireless networking, and network security.

She is looking for self-motivated Ph.D candidates in mobile networking and system areas, with a strong motivation towards academic excellence. More can be found in

SIST-Seminar 15006