*Soichiro Nishiguchi¹, Tomohiro Maeda^1,2, Hideyuki Sotobayashi¹, Atsushi Kanno² (1. Aoyama Gakuin Univ. (Japan), 2. NICT (Japan))

*Akihito Tamada¹, Yusuke Ito¹, Masaharu Imaki¹, Shumpei Kameyama¹ (1. Mitsubishi Electric Corp. Info. Tech. R&D Center (Japan))

*Jaeyoung Jang¹, Seung-Woo Kim¹, Young-Jin Kim¹ (1. KAIST (Korea))

*Sean Wolfe^1,2, Takuma Shirahata^1,2, Shinji Yamashita^1,2, Sze Yun Set^1,2 (1. Univ. of Tokyo (Japan), 2. RCAST (Japan))

Jhih-Jia Kang¹, *Shih-Hsiang Hsu¹ (1. National Taiwan University of Science and Technology (Taiwan))