*Masaki Wada¹, Kenji Kurokawa², Takashi Matsui¹, Hiroyuki Iida¹, Kazuhide Nakajima¹ (1. NTT Corporation, 2. Kitami Institute of Technology)

*Souya Sugiura¹, Kai Murakami¹, Hironori Yamaji¹, Motoharu Matsuura¹, Takeshi Takagi², Kazunori Mukasa² (1. University of Electro-Communications, 2. Furukawa Electric)

*Hironori Yamaji¹, Kai Murakami¹, Souya Sugiura¹, Motoharu Matsuura¹, Takeshi Takagi², Kazunori Mukasa² (1. University of Electro-Communications, 2. Furukawa Electric)