1. Department of Electrical Engineering and Computer Science, Nanoscale Communication Integrated Circuits (NCIC) Laboratories, The University of California, Irvine (UCI), Irvine, CA, USA
2. Department of Electrical and Computer Engineering and Department of Biomedical Engineering, Nanoscale Communication Integrated Circuits (NCIC) Laboratories, Center for Pervasive Communication and Computing, The University of California, Irvine (UCI), Irvine, CA, USA