Dynamic Spectrum Management
John Cioffi
Stanford University
This talk overviews the area of Dynamic Spectrum Management and
its application to binders of cross-talking transmission wires. The
prudent application of spectral power control and MIMO processing
is shown to increase the capacity of transmission channels with
respect to "single-user" independent use by typically factors of
3-10 times. Some of the basic casting of such problems into
a multi-user framework is provided in an introductory fashion along
with the consequent results. The capacity of a typical
American copper drop (300 meters or less) is found to exceed
1 Gbps symmetric transmission, sometimes known as GDSL.
Space-Time Wireless: From Theory to Application
Arogyaswami Paulraj
Stanford University
This talk overviews the evolution of space-time wireless
communications. We describe the key theoretical milestones in this
field beginning with the early work in adaptive antennas and
directions-of-arrival estimation in the 1970s/1980s and ending with the
mainstream MIMO work in recent years. We also survey industry efforts
to build space-time wireless technology in 1990s to the more recent
MIMO based products. We end with emerging trends in theory and
applications.
Information Systems beyond Electrical Engineering
Vwani Roychowdhury
University of California at Los Angeles
This talk will discuss recent progress in a number of different
fields, where the use of an information theoretic and systems
perspective has found widespread acceptance. The highlight will be the
establishment of new computational complexity classes, as derived from
the laws of physics, and their relationships to the conventional
complexity classes studied in computer science. These results are
based on work inspired by the introduction of Shannon entropy, and the
ongoing quest to understand the second law of thermodynamics and
quantum mechanics, purely from the perspective of fine-grained
information content of physical systems. Several examples of practical
engineering systems, which have been designed based on such
informational laws will be briefly mentioned.