Affiliation: | (1) Department of Electrical and Computer Engineering and The Coordinated Science Laboratory, The University of Illinois at Urbana-Champaign, 61801 Urbana, IL, USA;(2) Department of Electrical Engineering, University of Washington, 98195 Seattle, WA, USA;(3) Present address: Zheijung Computing Technique Institute, Hangzhou, People's Republic of China |