About the Authors

Xiaofeng Wang

Affiliation School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China

Gongshen Liu

lgshen@sjtu.edu.cn

Affiliation School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China

Jianhua Li

Affiliation School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China

Jan P. Nees

Affiliation School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: XW. Formal analysis: XW. Funding acquisition: JL. Investigation: XW GL JL JPN. Methodology: XW. Project administration: GL JL. Resources: GL JL. Software: XW. Supervision: GL JL. Validation: XW GL JL JPN. Visualization: XW. Writing – original draft: XW. Writing – review & editing: XW GL JL JPN.