Soheil Mohajerzefreh
Assistant Professor

  

Area of expertise: Wireless Communications, Multi-user Information Therapy, Bioinformatics, Distributed Storage, Video Transmission

Education
Ph.D. Communications Systems, 2010, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
M.Sc. Communication Systems, 2005, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
B.S. Electrical Engineering, 2004, Sharif University of Technology, Tehran, Iran

Contact information
Office: TBD Keller Hall
Telephone: TBD
E-mail: soheil (at) umn.edu
Personal Web Site: http://www.ece.umn.edu/~soheil


Honors/Awards
Swiss National Science Foundation Prospective Researcher (Post-Doctoral) Fellowship, 2010
Finalist for the best student paper award at IEEE ISIT 2010

Research Experience
October 2011-present, Postdoctoral Research Associate at the Department of Electrical Engineering and Computer Sciences, University of California at Berkeley (hosted by Prof. David Tse).
October 2010-October 2011, Postdoctoral Research Associate at the Department of Electrical Engineer- ing, Princeton University (hosted by Prof. Vincent Poor).
July-September 2009, Research Assistant (Internship) at the Deutsche Telekom Laboratories, Berlin, Germany (supervised by Dr. Ruben Merz and Prof. Anja Feldmann).
November 2004-February 2005, Semester Project at Laboratory of Algorithms  (ALGO), EPFL, Lausanne, Switzerland (supervised by Prof. Amin Shokrollahi).

Teaching Experience
Spring 2009, Principles of Wireless Networks, EPFL.
Fall 2008, Information Theory and Coding, EPFL.
Fall 2007, Signal Processing for Communications, EPFL.
Fall 2006, Signal Processing for Communications, EPFL.
Fall 2005, Advanced Digital Communication, EPFL.
Spring 2003, Probability and Statistics, Sharif University of Technology.
1998-2003, Mathematics for High school Students, Isfahan Math House.

Professional Activities
• Reviewer for IEEE Trans. on Information Theory, EEE Transactions on Wireless Communications, IEEE Communications Letters, IEEE Int. Symp. on Information Theory, IEEE Int. Conf. on Communications, Int. Conf. on Information, Communications and Signal Processing.
• Technical Program Committee member in MILCOM 2011, MILCOM 2012, IEEE International Wireless
Symposium 2012.

Selected Publications
• Compressed Sensing
[J11] A. Hormati, A. Karbasi, S. Mohajer, and M. Vetterli, “An Estimation Theoretic Approach for Spar- sity Pattern Recovery in the Noisy Setting,” submitted to IEEE Signal Processing Letters, May 2011.
• Smart Grid
[C19] S. R. Rajagopalan, L. Sankar, S. Mohajer, H. V. Poor, “Smart Meter Privacy: A Utility-Privacy
Framework”, in Proc. of IEEE SmartGridComm, Belgium, Oct. 2011.
[J10] L. Sankar,  S. R. Rajagopalan,  S. Mohajer, H. V. Poor, “Smart Meter Privacy: A Theoretical Frame- work”,  accepted for publication in IEEE Transactions on Smart Grid, July 2012.
• Source Transmission on Networks
[C26] R. Tandon, S. Mohajer and H. V. Poor, “ Cascade Source Coding with Erased Side Information,”
in Proc. of IEEE International  Symposium on Information Theory, Saint-Petersburg, Russia, Aug. 2011.
• Huffman Coding
[J14] S. Mohajer, P. Pakzad, and A. Kakhbod, “Tight  Bounds on the Redundancy of Huffman Codes,”
IEEE Transactions on Information Theory, vol. 58, no. 1, pp. 6737–6746, Nov. 2012.
[J15] S. Mohajer, A. Kakhbod, “Anti-Uniform Huffman Codes”, IET Communications, pp.  1213–1219, vol. 5, no. 9, June 2011.
• Search in Non-metric Space
[C22] D. Tschopp, S. Diggavi, P. Delgosha, and S.  Mohajer, “Randomized Algorithms for Comparison- based Search,” in Proc. of Annual Conference on Neural Information Processing Systems (NIPS),  Spain, Sep. 2011.
[J13] D. Tschopp, S. Diggavi, P. Delgosha, and S. Mohajer, “Randomized Algorithms  for Comparison- based Search”, to be submitted to Journal of Machine Learning Research.
• Network Tomography and Group Testing
[C21] M. Cheraghchi, A. Karbasi, S. Mohajer, and V. Saligrama, “Graph-Constrained Group Testing”, in Proc. of IEEE International  Symposium on Information Theory, Austin, USA, June 2010.
[J12] M. Cheraghchi, A. Karbasi, S. Mohajer, and V. Saligrama, “Graph-Constrained Group Testing”,
IEEE Transactions on Information Theory, vol. 58, no. 1, pp. 248–262, Jan. 2012.
• Dynamic Systems
[C17] S. Mohajer and B. Touri, “On Convergence Rate of Scalar Hegselmann-Krause Dynamics,” sub- mitted to ” American  Control  Conference, 2012.
• Network Coding
C16] M. Jafari,  S. Mohajer, C. Fragouli, and S. N. Diggavi, “On the Capacity of Non-Coherent Network
Coding”, in Proc. of IEEE International  Symposium on Information Theory, Seoul, South Korea, July 2009. [J9] M. Jafari, S. Mohajer, C. Fragouli, and S. N. Diggavi, “On the Capacity of Non-Coherent Network
Coding”, IEEE Transactions on Information Theory, vol. 57, no 2, pp. 1046–1066, Feb. 2011.
• Reliability and Secrecy in Wireless Networks
[C14] S. Mohajer, S. Diggavi, H. V. Poor, and S. Shamai (Shitz), “On the Parallel Relay Wire-tap Net- work,”  in Proc.  of 49th Annual Allerton Conference on Communication, Control, and Computing,  Illinois, USA, Sep. 2011.
[J8] S. Mohajer, S. Diggavi, H. V. Poor, and S. Shamai  (Shitz). “On the MIMO Diamond Wire-tap Net- work,”  to be submitted to IEEE Transaction on Information Theory.
• Bioinformatics
[J7] S. Mohajer, A. S. Motahari, and D. N. C. Tse, “Reference based DNA sequencing: Fundamental limits and optimum algorithms” under preparation.
• Relay-Interference Network
[J3] S. Mohajer, S. N. Diggavi, C. Fragouli and D. N. C. Tse, “Approximate Capacity of a Class of Relay- Interference Networks”, IEEE Transactions on Information  Theory, vol.  57, no 5, pp.  2837–2864, May
2011.
• Approximation of Multiple Description Problem
[J2] S. Mohajer, C. Tian, and S. N. Diggavi, “Asymmetric  Gaussian Multiple Descriptions and Asym- metric Multilevel Diversity Coding”, IEEE Transactions on Information  Theory, vol. 56, no 9, pp. 4367–4387, Sep. 2010.
• Multi-level Source Coding
[C1] S. Mohajer, C. Tian, and S. N. Diggavi, “Asymmetric  Multi-level Diversity  Coding,”  in Proc.  Of
IEEE Data Compression Conference, Snowbird, Utah, USA, Mar. 2008.