Network Optimization and Performance Evaluation in Wireless Networks, Cognitive Radio Networks, and Social Networks

Thursday, February 21, 2013 - 11:00am - 12:00pm EST

  • Location:10th Floor, Room 10.099
    Two Metrotech Center, BROOKLYN, New York, US

Speaker: Dr. Shouling Ji

Host Faculty: Professor Ramesh Karri

Abstract

In the presentation, I will introduce my current research as well as my future research directions. First, data gathering, which includes data collection and aggregation, is one of the most fundamental operations in wireless networks. For this topic, we conducted extensive research on designing effective data gathering algorithms and analyzing the achievable network capacity under various network scenarios, e.g. randomly deployed wireless networks, probabilistic wireless networks, distributed and asynchronous wireless networks, etc. I will show our research results with emphasizing on the data collection algorithm design and capacity analysis. Second, as a promising communication paradigm, Cognitive Radio Networks (CRNs) have paved a road for secondary users to opportunistically exploit unused licensed spectrum without causing unacceptable interference to primary users. In my presentation, I will explain the characteristics and challenges in the new emerging CRN paradigm followed by introducing our works in this area. Third, social networks are important mediums for communication, information dissemination, and influence spreading. I will introduce our research on influential node set selection, network evolution analysis, and information delivery for social networks, which is motivated by applications of alleviating social problems, such as drinking, addicting to games, and information/influence spreading problems, such as promoting new products. Finally, I will also introduce my future research directions including network capacity analysis under secure communications, network optimization and performance evaluation for CRNs with considering the social behavior of primary users, and security issues in social networks.

About the Speaker

Shouling Ji is a Ph.D. Candidate in the Department of Computer Science at the Georgia State University. He received his B.S. (with Honors) and M.S. Degrees of Computer Science from Heilongjiang University, China, in 2007 and 2010, respectively. He received another M.S. Degree of Computer Science from Georgia State University in 2011. His research interests include Wireless Sensor Networks, Data Management in Wireless Networks, Cognitive Radio Networks, and Social Networks. He is now a student member of ACM, IEEE, and IEEE COMSOC. He is also the Membership Chair of the IEEE Student Branch at Georgia State.