报告简介:
Although computer networks in general are purposed for
information delivery, existing network architectures like the Internet are
usually not information driven in the sense that network nodes (e.g.,
routers and switchers) only care about packets instead of the information
inside. As a common principle, network nodes as well as the whole network
system are designed to support quality of service (QoS) with respect to
promised data throughput and bounded (end-to-end) packet delay. The
traditional meaning of QoS for guaranteed per packet delivery and
end-to-end delay is actually overkill, since all we care is information.
The traditional solutions focusing on packets instead of the information
inside have the historical reason: the network protocol stack is layered
and network protocols should not mix up with application-layer information.
With the emergence of new technologies such as sensor networks, however,
the layering principle is not necessarily a rule of thumb, and the
redundancy in the information sources should be fully utilized in network
protocol design. A network node should not be purely a data-forwarding
device. Instead, it should be aware of information forwarded and should be
able to perform information processing whenever necessary. The ultimate
goal of the whole network system is no longer to guarantee service for
individual packets, but to guarantee a certain amount of information to be
successfully transported. We call this type of networking systems
information-driven networks. This talk is to present the research
opportunities and challenges in information-driven networking, and to
introduce several interesting research topics/projects in this field.
报告人简介:
Dr. Kui Wu received the B.S. degree in Computer Science in 1990
and the Master's degree in Computer Engineering in 1993, both from Wuhan
University, China, and the PhD degree in Computing Science from the
University of Alberta, Canada, in 2002. He worked as a lecturer in Wuhan
University during 1993-1998 and a development manager in Haven Software
Inc. during 1995-1998. He joined the Department of Computer Science,
University of Victoria, Canada, in 2002, where he is currently an Associate
Professor. He was a visiting researcher at the Centre for Quantifiable
Quality of Service in Communication Systems, Norwegian University of
Science and Technology (NTNU) in 2008, and a Japan Society for the
Promotion of Science (JSPS) visiting scholar at University of Tsukuba in
2009. His research interests include performance analysis and protocol
design of computer networks, wireless sensor networks, online social
networks, smart grid, and network security.