Wireless Ad Hoc/Sensor Networks:
Energy Efficiency and Cooperativeness
Abstract
Wireless ad hoc and sensor networks had drawn lots of research attentions recently due to its potential applications in a number of areas. In this talk, I will briefly review our research results on two key issues on wireless networks: energy efficiency and cooperativeness. Routing is a key operation in any networks. Due to its distinguished characteristics, routing in wireless networks has its own challenges. Topology control had been used in a variety of ways in routing to save the energy consumption while achieving the message delivery. Topology control is to select a subset of nodes or links for network operation while the resulted graph has certain global properties. We will briefly summarize the current state of the art in distributed topology control.
Almost all routing protocols designed so far assumed that each wireless device will follow the prescribed protocols without any deviation. This is shattered by the fact that each device in a wireless ad hoc network is often owned by individual users, who mostly are interested in maximizing their own benefits. We will then briefly summarize some of our research results on designing robust routing protocols to deal with the possible user selfishness issues in wireless ad hoc networks.
The results presented here are collaborated with my colleagues and my students and are partially supported by NSF.
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Dr. Xiang-Yang Li has been an Assistant Professor of Computer Science at the
Illinois Institute of Technology since 2000. He received MS (2000) and PhD
(2001) degree at Department of Computer Science from University of Illinois at
Urbana-Champaign. He received his Bachelor degree at Department of
Computer Science and Bachelor degree at Department of Business Management
from Tsinghua University, P.R. China in 1995. He is a member of the Chinese
national team prepared for the International Mathematics Olympics (IMO) from
1988 to 1990. His research interests span the wireless ad hoc networks, game
theory, computational geometry, and cryptography and network security.
Recently, he focuses on performing research on the cooperation, energy
efficiency, and distributed algorithms for wireless ad hoc and sensor networks.
He has published about 60 conference papers in top-quality conferences such as
ACM MobiCom, ACM MobiHoc, ACM SODA, ACM STOC, IEEE INFOCOM, etc. He has more than 30 journal
papers published or accepted for publish. He is a Member of the ACM, IEEE, and IEEE Communication Society. |