IEEE Winnipeg Section


Communications Chapter Seminar



Controlled coalitional games for cooperative mobile social networks


Thursday, June 7, 2012 at 10:00 am.


Room E2-361, EITC, University of Manitoba, Fort Garry Campus


Dusit Niyato
School of Computer Engineering
anyang Technological University


Mobile social networks have been introduced as an efficient (i.e., to minimize bandwidth usage) and effective (i.e., to minimize the delay or maximizing the number of target recipients) way of disseminating content and information to a particular group of mobile users who share similar interests. In this presentation, we present how the content providers and the network operator can interact to distribute content in a mobile social network. The objective of each content provider is to minimize the cost that pertains to the time used to distribute the content to the subscribed mobile users and the cost due to the price paid to the network operator for transferring the content over a wireless connection through a base station. Although the content providers can cooperate by forming coalitions for sharing a wireless connection, the network operator can control the amount of bandwidth provided over the wireless connection. We introduce a novel coalitional game model, which is referred to as the controlled coalitional game, to investigate the decision-making process of the content providers and the network operator. Numerical studies show that, given the allocated bandwidth from the network operator, the content providers can self organize into coalitions while minimizing their individual cost. In addition, the results demonstrate that the revenue of the network operator can be maximized when the bandwidth allocation is performed while considering the coalitional structure of the content providers.

Speaker Bio:

Dusit Niyato ( is currently an assistant professor in the School of Computer Engineering, at the Nanyang Technological University, Singapore. He obtained his Bachelor of Engineering in Computer Engineering from King Mongkuts Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand. He received his Ph.D. in Electrical and Computer Engineering from the University of Manitoba, Canada. His research interests are in the area of radio resource management in cognitive radio networks and broadband wireless access networks. Dr. Niyato has won several research awards which include the IEEE 2012 Wireless Communications and Networking Conference (IEEE WCNC 2012) Best Paper Award, the IEEE 2011 International Conference on Communications (IEEE ICC 2011) Best Paper Award, and the 2011 IEEE Communications Society Fred Ellersick Prize Paper Award. Currently, he serves as an Editor for the IEEE Transactions on Wireless Communications and the IEEE Wireless Communications Letters. From June 1- June 30, 2012 Dr. Niyato is a Visiting Professor in the Department Electrical and Computer Engineering at the University of Manitoba.


For questions or more information: Ekram Hossain 474-8908.

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