About the Authors

Insoo Sohn

isohn@dongguk.edu

Affiliation Division of Electronics & Electrical Engineering, Dongguk University—Seoul, Seoul, Republic of Korea

Huaping Liu

Affiliation School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon, United States of America

Nirwan Ansari

Affiliation Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, New Jersey, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IS HL NA. Performed the experiments: IS HL NA. Analyzed the data: IS HL NA. Contributed reagents/materials/analysis tools: IS HL NA. Wrote the paper: IS HL NA.