1. Electrical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
2. Mechanical Science and Engineering, University of Illinois Urbana-Champaign, Champaign, IL, USA
3. School of Interactive Computing, Georgia Institute of Technology, Atlanta, GA, USA
4. Industrial and Enterprise Systems Engineering, University of Illinois Urbana-Champaign, Champaign, IL, USA