Author Affiliations

Takehiro Fukushima,^*,1 Susumu Shinohara,² Satoshi Sunada,³ Takahisa Harayama,⁴ Kenichi Arai,² Kazuyuki Yoshimura,² Koichiro Sakaguchi,¹ and Yasunori Tokuda¹

¹Department of Information and Communication Engineering, Okayama Prefectural University, 111 Kuboki, Soja, Okayama 719-1197, Japan

²NTT Communication Science Laboratories, NTT Corporation, 2-4 Hikaridai Seika-cho Soraku-gun, Kyoto 619-0237, Japan

³Faculty of Mechanical Engineering, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan

⁴Department of Applied Physics, Waseda University, 3-4-1, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan

^*Corresponding author: fuku@c.oka-pu.ac.jp