2006年11月1日 Special section on wide band systems IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences Shin'ichi Tachikawa, Shin'ichi Tachikawa, Shin'ichi Tachikawa, Tetsushi Ikegami, Hiroyasu Ishikawa, Tomoaki Ohtsuki, Takehiko Kobayashi, Shin'ichi Sato, Yukitoshi Sanada, Masahiko Shimizu, Kazuaki Takahashi, Shinji Tsuzuki, Hiroyuki Nakase, Hiromasa Habuchi, Shinsuke Hara, Shinya Matsufuji, Kouji Ohuchi, Masanori Hamamura