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Professor Junshan Zhang
Arizona State University, USA

Title: A New Paradigm for Mobile Social Networking:  Social Tie, Group Utility Maximization and Privacy

Abstract:  The combination of exploding demand and limited resources poses a significant challenge for future wireless network design.  Since  hand-held devices are carried by human beings, we advocate a social aware approach to enhance cooperative networking. Such cooperation among   mobile devices with trust enables self-organizing networking, and has potential to achieve substantial gains in spectral efficiency and lead to significant increases in network capacity. In particular, mobile devices are coupled in the physical domain  due to the interference relationship in data transmissions, and also coupled in social domain due to the social ties among them. It would be a win-win case for these devices to help those users having social trust with them. With this insight, we cast cooperative wireless networking  with social trust as a  physical-social game, where  each user carries out resource allocation to maximize its social group utility, defined as the weighted sum of its own utility and the utilities of other users having social trust towards it. We pursue a thorough understanding of the physical-social game formulation, aiming to establish a general social group utility maximization framework that bridges non-cooperative game theory and social welfare maximization - two traditionally ¡°disjoint¡± paradigms for network optimization and design. We will also touch upon related privacy issues.


Junshan Zhang received his Ph.D. degree from the School of ECE at Purdue University in 2000. He joined the ECE Department at Arizona State University in August 2000, where he has been Professor since 2010. His interests include cyber-physical systems, communications networks, and network science. His current research focuses on fundamental problems in information networks and energy networks, including modeling and optimization for smart grid, wireless networks, mobile social networks, crowdsourcing, cognitive radio, and network information theory. 
    Prof. Zhang is a fellow of the IEEE, and a recipient of the ONR Young Investigator Award in 2005 and the NSF CAREER award in 2003. He received the Outstanding Research Award from the IEEE Phoenix Section in 2003. He was TPC co-chair for a number of major conferences in communication networks, including INFOCOM 2012, WICON 2008 and IPCCC'06, and TPC vice chair for ICCCN'06. He was the general chair for IEEE Communication Theory Workshop 2007. He was an Associate Editor for IEEE Transactions on Wireless Communications, an editor for the Computer Network journal and an editor IEEE Wireless Communication Magazine. He co-authored a paper that won IEEE ICC 2008 best paper award, and one of his papers was selected as the INFOCOM 2009 Best Paper Award Runner-up. He is currently a Distinguished Lecturer of the IEEE Communications Society.
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