Meng Li, (Beijing University of Technology, China); Fei Richard Yu, (Carleton University, Canada); Pengbo Si, (Beijing University of Technology, China); Enchang Sun, (Beijing University of Technology, China); Yanhua Zhang, (Beijing University of Technology, China)

Martin Rosalie, (University of Luxembourg, Luxembourg); Gregoire Danoy, (University of Luxembourg, Luxembourg); Serge Chaumette, (Univ. Bordeaux, France); Pascal Bouvry, (University of Luxembourg, Luxembourg)

Omar Gatera, (Istanbul Technical University, Turkey); Haci Ilhan, (Yildiz Technical University, Turkey); Ahmet Hamdi Kayran, (Istanbul Technical University, Turkey)

Kushal Jaisingh, (University of Ontario Institute of Technology (UOIT), Canada); Dr. Khalil El-Khatib, (University of Ontario Institute of Technology (UOIT), Canada); Dr. Rajen Akalu, (University of Ontario Institute of Technology (UOIT), Canada)

Paulo H. L. Rettore, (Federal University of Minas Gerais, Brazil); André B. Campolina, (Federal University of Minas Gerais, Brazil); Leandro A. Villas, (State University of Campinas, Brazil); Antonio A. F. Loureiro, (Federal University of Minas Gerais, Brazil)

Dajun Zhang, (Carleton University, Canada); Fei Richard Yu, (Carleton University, Canada); Zhexiong Wei, (Carleton Univerisy, Canada)

Jesse Lacroix, (University of Ontario Institute of Technology, Canada); Khalil El-Khatib, (University of Ontario Institute of Technology, Canada); Rajen Akalu, (University of Ontario Institute of Technology, Canada)

Tomo Nikolovski, (University of Ontario Institute of Technology, Canada); Richard Werner Pazzi, (University of Ontario Institute of Technology, Canada)

Abstract: Optimization models and techniques are often used to achieve efficient allocation of limited network resources to competing demands in communication networks. In this talk, the speaker will give a brief overview of distributed optimization theory, including convex optimization problems for which iterative solution techniques exist and converge. The well-known Transport Control Protocol (TCP) is shown to be equivalent a distributed solution that achieves the optimal allocation of bandwidth in communication networks. As for wireless ad-hoc and sensor networks, each link capacity depends on the transmission power of other links due to co-channel interference. In addition, the quality of multimedia services supported by these networks cannot be represented by a concave function of the amount of allocated bandwidth. These factors unfortunately make the resource allocation problem for the wireless networks become a non-convex optimization problem. New distributed solution techniques will be presented to solve these problems and numerical examples will also be provided. This talk will also consider the in-network data processing in wireless sensor networks where data are aggregated (fused) along the way they are transferred toward the end user. It will be shown that finding the optimal solution for the distributed processing problem is NP-hard, but for specific parameter settings, the problem can lead to a distributed framework for achieving the optimal tradeoff between communications and computation costs. Future work on integrating data or signal processing techniques with the distributed solution framework will be discussed.
Bio: Kin K. Leung received his B.S. degree from the Chinese University of Hong Kong in 1980, and his M.S. and Ph.D. degrees from University of California, Los Angeles, in 1982 and 1985, respectively. He joined AT&T Bell Labs in New Jersey in 1986 and worked at its successor companies, AT&T Labs and Bell Labs of Lucent Technologies, until 2004. Since then, he has been the Tanaka Chair Professor in the Electrical and Electronic Engineering (EEE), and Computing Departments at Imperial College in London. He serves as the Head of Communications and Signal Processing Group in the EEE Department at Imperial. His research focuses on networking, protocols, optimization and modeling issues of wireless broadband, sensor and ad-hoc networks. He also works on multi-antenna systems and cross-layer optimization of these networks. He received the Distinguished Member of Technical Staff Award from AT&T Bell Labs in 1994, and was a co-recipient of the 1997 Lanchester Prize Honorable Mention Award. He was elected as an IEEE Fellow in 2001. He received the Royal Society Wolfson Research Merits Award from 2004 to 2009 and became a member of Academia Europaea in 2012. Along with his co-authors, he also received a number of best paper awards at major conferences, including the IEEE PIMRC 2012 and ICDCS 2013. He serves as a member (2009-11) and the chairman (2012-15) of the IEEE Fellow Evaluation Committee for Communications Society. He was a guest editor for the IEEE JSAC, IEEE Wireless Communications and the MONET journal, and as an editor for the JSAC: Wireless Series, IEEE Transactions on Wireless Communications and IEEE Transactions on Communications. Currently, he is an editor for the ACM Computing Survey and International Journal on Sensor Networks.

Saeed Bastani, (Lund University, Sweden); Bjorn Landfeldt, (Lund University, Sweden)

Mauricio Bertanha, (University of Ontario Institute of Technology, Canada); Richard W. Pazzi, (University of Ontario Institute of Technology, Canada)

Nam Ky Giang, (University of British Columbia, Canada); Victor C.M. Leung, (University of British Columbia, Canada); Rodger Lea, (University of British Columbia, Canada)

Hongchun Li, (Fujitsu Research & Development Center CO., LTD., China); Chen Ao, (Fujitsu Research & Development Center CO., LTD., China); Yi Xu, (Fujitsu Research & Development Center CO., LTD., China); Jun Tian, (Fujitsu Research & Development Center CO., LTD., China); Koichiro Yamashita, (Fujitsu Laboratories, LTD., Japan)

Canan Aydogdu, (Izmir Institute of Technology, Turkey)

Juan A. Cruz-Carl0n, (Universidad Nacional Autonoma de Mexico, Mexico)

Jun Zhang, (Telecom Paristech, University of Paris-Saclay, France); Meng Ying Ren, (Telecom Paristech, University of Paris-Saclay & University of Technology of Troyes, France); Houda Labiod, (Telecom Paristech, University of Paris-Saclay, France)

Heng Li, (Hunan University, China); Yonghe Liu, (The University of Texas at Arlington Arlington, USA); Siwang Zhou, (Hunan University, China)