Ali Vakili

 Ph.D.  Student

California Institute of Technology

Electrical Engineering Department

a + last name at caltech.edu, Address: 1200 E California Blvd, Caltech, MC 136-93, Pasadena, CA91125   Office: 626-395-2215

I am currently a fourth year graduate student in Electrical Engineering Department of California Institute of Technology, working with Prof. Babak Hassibi.
 

Education:

Ph.D. in Electrical Engineering, California Institute of Technology, Pasadena, California, USA, expected June 2009

M.S. in Electrical Engineering, California Institute of Technology, Pasadena, California, USA, Sep. 2004 – June 2006

B.S. in Electrical Engineering (Communicaations), Sharif University of Technology, Tehran, Iran,  Sep. 2001 – July 2004

Thesis title: “Power control module in a UMTS system”, Advisor: Dr. F. Behnia
 

Research Interests:

My research is focused on:

1) Determining the asymptotic behavior of random Lyapunov and Riccati matrix recursions that arise in estimation and control. Applications include adaptive signal processing, estimation over lossy networks, etc.

2) Analyzing the limits of performance of wireless networks. I am particularlyinterested in various issues arising in design of communication schemes for multiple-antenna broadcast channels, including:

-       System performance under differentiated quality of service requirements

-       Determining the capacity region with imperfect channel state information

-       The delay-throughput tradeoff in broadcast channels with common message
 

Publications:

-       A. Vakili, B. Hassibi, ``A Stieltjes Transform Approach for Studying the Steady-State Behavior of Random Lyapunov and Riccati Recursions" Submitted to IEEE CDC, Cancun, Mexico, December 2008.

-       A. Vakili, B. Hassibi, ``On the asymptotic eigenvalue distribution of certain random Lyapunov and Riccati recursions" in Proc. of 18th MTNS, Blacksburg, VA, USA, August 2008.

-       M. Sharif, A. F. Dana,A. Vakili, B. Hassibi, ``Differentiated Rate Scheduling for the Down-Link of Cellular Systems," to appear in IEEE Transactions on Wireless Communications. pdf

-       A. Vakili, A. F. Dana, Babak Hassibi, ``Opportunistic Beamforming with Rate Back-Off in the Presence of Channel Estimation Error," in preparation for submission to the IEEE Transactions on Wireless Communications.pdf

-        A. Vakili, A. F. Dana, B. Hassibi, ``On the throughput of opportunistic beamforming with imperfect CSI," in Proc. of ACM IWCMC, Honolulu, HI, USA, August 2007. pdf

-    A. Vakili, A. F. Dana,B. Hassibi,  ``Differentiated Rate Scheduling for MIMO Broadcast Channels with Estimation Error," in Proc. of 40th Asilomar Conference on Signals, Systems and Computers, Monterey, CA, October 2006.pdf 

-       A. Vakili, B. Hassibi, ``On the throughput of broadcast channels with imperfect CSI," in Proc. of IEEE SPAWC, Cannes, France, July 2006.pdf

-       A. Vakili, M. Sharif, B. Hassibi, ``The effect of channel estimation error on the throughput of broadcast channels," in Proc. of IEEE ICASSP, Toulouse, France, May 2006.pdf

-       A. Vakili, A. F. Dana, M. Sharif, B. Hassibi, ``Differentiated rate scheduling for MIMO Gaussian broadcast channels," in Proc. of  43rd Annual Allerton Conf. on Communication, Control and Computing , Monticello, IL., September 2005.pdf