University of Minnesota
Institute of Technology
myU OneStop

Tom Luo Web

Zhi-Quan Tom Luo


Area of expertise: Optimization, Signal Processing, Digital Communication

Ph.D., 1989, Massachusetts Institute of Technology, Cambridge, MA, United States
B.S., Applied Math, 1984, Beijing University, Beijing, China

Contact information
Office: 4-178 Keller Hall
Telephone: (612) 625-0242
E-mail: luozq (at)
Personal Web Site:

ADC Chair in Wireless Communications

My general research interests include the design and analysis of efficient optimization algorithms in data communication and signal processing. I am especially interested in computation/communication complexity issues arising from these problem areas. This includes both providing theoretical lower bounds on the complexity and designing efficient methods whose complexity closely match the lower bounds. My current research interest lies in the theory of multi-user communications and the application of optimization techniques todistributed signal processing.

Selected publications
He, S., Luo, Z.-Q., Nie, J.W., and Zhang, S. "Semidefinite Relaxation Bounds for Indefinite Homogeneous Quadratic Optimization", SIAM Journal on Optimization, to appear.

Luo, Z.-Q. and Zhang, S., "Dynamic Spectrum Management: Complexity and Duality", IEEE Journal of Selected Topics in Signal Processing, Special Issue on Signal Processing and Networking for Dynamic Spectrum Access, Vol. 2, No. 1, pp. 57-73, February, 2008.

Matskani, E., Sidiropoulos, N.D., Luo, Z.-Q. and Tassiulas, L., "Convex Approximation Techniques for Joint Multiuser Downlink Beamforming and Admission Control", IEEE Transactions on Wireless Communication, Vol. 7, No. 7, pp.2682-2693, July, 2008.