Current and past projects
Single particle reconstruction in Cryo Electron Microscopy (Cryo-EM)
(January 2017-present, University of Illinois at Urbana-Champaign)
Developing probabilistic and deterministic techniques to reconstruct density maps and atmoic structure of biological particles from their 2D projection images. Getting to know the overall pipeline including particle picking from noisy micrograhs, 2D class averaging, 3D class average and refinement. Getting to know current packages in the field such as RELION and ASPIRE.
1D signal recovery from noisy translated observations
(August 2017-present, University of Illinois at Urbana-Champaign)
Developing deterministic and probabilistic techniques for recovering signal(s) from full or partial observations. Targeting the extension of the approach to DNA sequence assembly problem and heterogeneous signals.
Physical layer caching and Coordinated Multi-point transmission (CoMP) in cellular networks
(Sept-Dec 2015, Research Internship, Hong Kong University of Science and Technology)
Analyzing rate outage probability in random cache-enabled cellular networks in CoMP scenarios owing mathematical tools from stochastic geometry and optimization.
Cellular load balancing via relay nodes at the cell edges
(Jul-Sept 2015, Research Internship, Chinese University of Hong Kong)
Traffic scheduling based on the deadlines and the volumes regarding each traffic in offline scenarios in addition to the corresponding mathematical optimization modeling.
Improvement of Content Distribution Algorithms in Opportunistic Networks, Resource allocation of Device to Device communications underlying cellular
(2014-2015, M.Sc. projects, Sharif University of Technology)
Designing feature-based content dissemination algorithms in Opportunistic networks, mathematical analysis of the dissemination rate. Designing heuristic orthogonal, non-orthogonal and semi-orthogonal resource allocation schemes for D2D communications, mathematical modeling of the problem.
M. Zehni, G. Elhami and M. R. Pakravan, "Feature-based content dissemination process in opportunistic networks," in IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Hong Kong, 2015.
G. Elhami, M. Zehni and M. R. Pakravan, "Maximum clique-based resource allocation in device-to-device communications," in IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) , Hong Kong, 2015.
M. Zehni and V. Shah-Mansouri, "Probability analysis of reliable second order routing in wireless field networks," in 23rd Iranian Conference on Electrical Engineering, Tehran, 2015.
G. Elhami, M. Zehni and M. R. Pakravan, "A survey on heterogeneous access networks: Mobile data offloading," in 23rd Iranian Conference on Electrical Engineering, Tehran, 2015.
111 Coordinated Science Labratory University of Illinois at Urbana-Champaign
mzehni2 AT illinois DOT edu