Usman Khan's Web Page

Usman Khan

Post-doctoral Researcher
Deptartment of Electrical and Systems Engineering
School of Engineering and Applied Sciences

University of Pennsylvania
Email: khanu AT seas DOT upenn DOT edu

Academics and Research

I am a post-doctoral researcher in the Deptartment of Electrical and Systems Engineering at University of Pennsylvania's School of Engineering and Applied Sciences. I am working with Prof. Ali Jadbabaie and am affliated with the General Robotics, Automation, Sensing and Perception (GRASP) Lab.

I completed my PhD in the Dept. of Electrical and Computer Engineering at Carnegie Mellon University, in August 2009. My doctoral advisor was Prof. José M. F. Moura, with whom I worked on distributed estimation algorithms for sensor networks and iterative algorithms in random environments over dynamic communication networks. I completed my MS in ECE from University of Wisconsin Madison, in August 2004, where I did my MS thesis under the supervision of Prof. James A. Bucklew, on sensor localization with randomized graphical models.

I have been fortunate to work under the guidance of some great researchers apart from my PhD and MS thesis advisors. I am working in collaboration with Prof. Marija D. Ilić on power systems modeling and estimation using sensor netwroks. I have worked for 2 years under the supervision of Dr. Hamid R. Eghbalnia at Nuclear Magnetic Resonance Facility at Madison, Biochemistry Dept., UW-Madison, on shape characterization of protein molecules using differential geometric descriptors, statistical modeling and estimation of multi-dimensional NMR signals and Fourier transform recovery under non-uniform sampling. I worked as a research assistant in CS Dept., UW-Madison, under the supervision of Prof. Amos Ron on generating pseudo-random NMR signals. I worked on DNA Sequence Analysis with Prof. Amir Assadi, Mathematics Dept., UW-Madison.

In summer 2007, I worked as an intern in AKAMAI Technologies, Cambridge, MA. My project related to control and estimation for load balancing (internet traffic demand) under network resource constraints.

I completed my BS in EE from the University of Engineering and Technology, Lahore, Pakistan, in March 2002. In UET, I did my BS thesis under the supervision of Prof. Noor M. Sheikh and Dr. Nadeem Khan on content based reduction of H.263 encoded video sequences, based on skin region detection, for efficient transmission.

Publications

PhD Thesis

U. A. Khan, “High dimensional consensus in large-scale networks: Theory and applicaitons,” PhD Thesis, ECE Department, Carneigie Mellon University, Aug. 2009.

MS Thesis

U. A. Khan, “Localization in sensor networks using message passing algorithms,” MS Project Report, ECE Department, UW-Madison, Aug. 2004.

Book Chapters

[B1] U. Khan, S. Kar, and J. M. F. Moura, “Distributed algorithms in sensor networks,” in Handbook on Sensor and Array Processing, Simon Haykin and K. J. Ray Liu, Eds. Wiley-Interscience, New York, NY, April 2009, to appear, 33 pages.

Journals

in preparation

[J8] U. A. Khan, S. Kar, Marija D. Ilić, and J. M. F. Moura, “Robust distributed phasor estimation in electric power grids: Minimal number of PMUs and their optimal placement.”

[J7] U. A. Khan and J. M. F. Moura, “Inversion of full matrices with sparse inverses.”

[J6] U. A. Khan, S. Kar, Marija D. Ilić, and J. M. F. Moura, “Robust distributed solution of load flow equations in future smart grids.”

submitted

[J5] U. A. Khan, S. Kar, and J. M. F. Moura, “Sensor localization with noisy distance measurements,” submitted to IEEE Transactions on Signal Processing, initial submission: May 2009.

[J4] U. A. Khan, S. Kar, and J. M. F. Moura, “Higher dimensional consensus: Learning in large-scale networks,” submitted to IEEE Transactions on Signal Processing, initial submission: Apr. 2009.

published/accepted

[J3] M. D. Ilić, L. Xie, U. A. Khan and J. M. F. Moura, “Modeling, sensing and control of future cyber-physical energy systems,” IEEE Transactions on Systems, Man and Cybernetics: Special Issue on Engineering Cyber-Physical Ecosystems, accepted for publication.

[J2] U. A. Khan, S. Kar, and J. M. F. Moura, “Distributed sensor localization in random environments using minimal number of anchor nodes,” IEEE Transactions on Signal Processing, vol. 57, no. 5, pp. 2000-2016, May 2009.

[J1] U. A. Khan and J. M. F. Moura, “Distributing the Kalman filter for large-scale systems,” IEEE Transactions on Signal Processing, vol. 56, Part 1, no. 10, pp. 4919–4935, Oct. 2008.

Conferences

[C14] U. A. Khan, S. Kar, and J. M.F. Moura, “Designing the parameters of high dimensional consensus,” in 35th IEEE International Conference on Acoustics, Speech, and Signal Processing, Dallas, TX, Apr. 2010, submitted.

[C13] U. A. Khan, S. Kar, and J. M.F. Moura, “Distributed sensor localization using barycentric coordinates,” in 3rd International Workshop on Computational Advances in Multi- Sensor Adaptive Processing, Aruba, Dutch Antilles, Dec. 2009, accepted for publication.

[C12] U. A. Khan, S. Kar, and J. M. F. Moura, “Distributed localization in networks of mobile agents,” in 47th Annual Allerton Conference on Communication, Control and Computing, Monticello, IL, Sep. 2009, accepted for publication.

[C11] U. A. Khan, S. Kar and J. M. F. Moura, “Distributed average consensus: Beyond the realm of linearity,” in 43rd IEEE Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov. 2009, accepted for publication.

[C10] U. A. Khan, S. Kar and J. M. F. Moura, “Asymptotic noise analysis of high dimensional consensus,” in 43rd IEEE Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov. 2009, accepted for publication, invited paper.

[C9] U. A. Khan, S. Kar and J. M. F. Moura, “Higher dimensional consensus algorithms in sensor networks,” in 34th IEEE International Conference on Acoustics, Speech, and Signal Processing, Taipei, Taiwan, Apr. 2009, pp. 2857-2860.

[C8] U. A. Khan, M. D. Ilić, and J. M. F. Moura, “Cooperation for aggregating complex electric power networks to ensure system observability,” in 1st International Conference on Infrastructure Systems, Rotterdam, Netherlands, Nov. 2008.

[C7] U. A. Khan, S. Kar and J. M. F. Moura, “A liner iterative algorithm for distributed sensor localization,” in 42nd IEEE Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Oct. 2008, pp. 1160-1164 , invited paper.

[C6] U. A. Khan, S. Kar, B. Sinopoli and J. M. F. Moura, “Distributed sensor localization in Euclidean spaces: Dynamic environments,” in 46th Annual Allerton Conference on Communication, Control and Computing, Monticello, IL, Sep. 2008, pp. 361-366, invited paper.

[C5] M. D. Ilić, L. Xie, U. A. Khan and J. M. F. Moura, “Modeling future cyber-physical energy systems,” in IEEE Power Engineering Society General Meeting, Pittsburgh, PA, Jul. 2008, pp. 1-9.

[C4] U. A. Khan and J. M. F. Moura, “Distributed Iterate-Collapse Inversion (DICI) algorithm for L-banded matrices,” in 33rd IEEE International Conference on Acoustics, Speech, and Signal Processing, Las Vegas, NV, Mar.-Apr. 2008, pp. 2529-2532.

[C3] U. A. Khan and J. M. F. Moura, “Model distribution for distributed Kalman filters: A graph theoretic approach,” in 41st IEEE Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov. 2007, pp. 611-615.

[C2] U. A. Khan and J. M. F. Moura, “Distributed Kalman filters in sensor networks: Bipartite fusion graphs,” in 15th IEEE Workshop on Statistical Signal Processing, Madison, WI, Aug. 26-29 2007, pp. 700-704.

[C1] U. A. Khan, M. I. Cheema and N. M. Sheikh, “Adaptive video encoder based on skin tone region detection,” in IEEE International Students Conference, ISCON, Lahore, Pakistan, Aug. 2002, pp. 129-134.

Patents

[1] Undisclosed, under provisional filing.