Ongoing Research Projects

For a list of my publications, please see My Publications page or my CV. Note that my CV is invariably a more up-to-date account of the problems I am working on than this page. This page was last updated in August, 2008.

Wireless Ad Hoc Networks

Ad hoc networks allow wireless devices to communicate directly without wired mediation such as base stations or access points. Ad hoc capabilities extend the range and possibly the capacity of centralized (cellular) networks, and also enable emergency (rescue workers) and battlefield networks. Ad hoc networks are quite difficult to describe analytically. I am very interested in quantitative theories that describe the capacity, reliability, and power consumption of ad hoc networks. My group has helped advance the use of stochastic geometry and communication theory in developing ad hoc network performance results that provide design insight and clean mathematical results. As part of a large and ambitious multi-year effort, I am leading a team of 13 faculty and 20+ PhD students in the quest for a truly descriptive and accurate information theory for ad hoc networks. Learn more about this project here.

Key Sponsors
DARPA (IT-MANET)
National Science Foundation, CISE Directorate
Cisco
National Instruments

Primary Faculty Collaborators
Prof. Steven Weber
Prof. Nihar Jindal
Prof. Martin Haenggi
Prof. Gustavo de Veciana

Related Links
Non-equilibrium Information Theory
P. R. Kumar's Web page
LabVIEW Simulation of Wireless ad hoc networks
LabVIEW Simulation of MIMO-OFDM



Advanced Technologies for Broadband Wireless Networks

In cooperation with leading industry partners, my group attempts to stay on the cutting edge of wireless technology by inventing, designing, and developing new solutions for broadband wireless technologies. Particular areas of interest include the following:

• Multi-cell cooperative techniques


• Femtocells, distributed antennnas, and fixed relays


• Multiuser and interference management


• OFDM/OFDMA: resource allocation, peak power reduction, channel estimation


• MIMO: multicell MIMO, limited feedback, space-time coding


• Code Division Multiple Access (less nowadays)

My group attempts to develop both rigorous theory and practical algorithms and applications in the above areas.

Key Sponsors
AT&T Laboratories
Freescale
Nortel
Texas Instruments

Primary Collaborators
Prof. Robert Heath
Dr. Alan Gatherer, Texas Instruments
Dr. Arunabha Ghosh, AT&T Labs
Dr. Wesley McCoy, Freescale