Department of Electronics and Computer Engineering, Chonnam National University, Gwangju 61186, Republic of Korea;
R&D Planning and Management Team, Giga KOREA Foundation, Daejeon 34054, Republic of Korea.;
Department of Electronics and Computer Engineering, Chonnam National University, Gwangju 61186, Republic of Korea;
Department of Electronics and Computer Engineering, Chonnam National University, Gwangju 61186, Republic of Korea;
Department of Electronics and Computer Engineering, Chonnam National University, Gwangju 61186, Republic of Korea;