A High Speed Protocol Processor to Execute OSI. - Matsuaki Terada; Tatsuya Yokoyama; Tetsuhiko Hirata; Susumu Matsui (INFOCOM, 1991)

Proposal and Testbed System of Inter Radio System Switching for Cognitive Radio. - Seishi Hanaoka; Naruhito Nakahara; Masashi Yano; Satoshi Yoshizawa; Tetsuhiko Hirata (CrownCom, 2007)

Simulation and Basic Experiment of Inter Radio System Handover for Cognitive Radio. - Seishi Hanaoka; Junji Yamamoto; Koji Wakayama; Satoshi Yoshizawa; Tetsuhiko Hirata (PIMRC, 2007)

Testbed System of Inter-Radio System Switching for Cognitive Radio. - Seishi Hanaoka; Masashi Yano; Tetsuhiko Hirata (IEICE Trans. Commun., 2008)