Coding and Its Ramifications
of Information Engineering
Chinese University of Hong Kong
Nov 14, 2007
3:30pm - 4:30 pm
coding, a new concept in network communications, is
generating much interest in information theory, coding
theory, networking, wireless communications, cryptography,
and computer science. Consider a point-to-point communication
network on which a number of information sources are
to be mulitcast to certain sets of destination nodes.
The problem is to characterize the maximum possible
thruputs. Contrary to one's intuition, network coding
theory reveals that it is in general not optimal to
regard the information to be multicast as a ``fluid"
which can simply be routed or replicated. Rather,
by employing coding at the nodes, bandwidth can in
general be saved. In this talk, I will give an overview
of network coding and its ramifications, with emphasis
on the research currently conducted in my group.