homepages/29/4651,
University of California, Berkeley, CA, USA, Howard Chen and Howard H. Chen, Home Page, https://ieeexplore.ieee.org/author/37311374400
homepages/29/1773-6,
Qingdao University of Science and Technology, School of Information Science and Technology, Qingdao, China, Zhen Zhao, Home Page, https://ieeexplore.ieee.org/author/37089746844