The future generations of mobile communications based on broadband access technologies. - Shingo Ohmori; Yasushi Yamao; Nobuo Nakajima (IEEE Commun. Mag., 2000)

Research and developments of software-defined radio technologies in Japan. - Nobuo Nakajima; Ryuji Kohno; Shuji Kubota (IEEE Commun. Mag., 2001)

Development for 4th generation mobile communications. - Nobuo Nakajima; Yasushi Yamao (Wirel. Commun. Mob. Comput., 2001)

Future Mobile Communications Systems in Japan. - Nobuo Nakajima (Wirel. Pers. Commun., 2001)

The Future Generations of Mobile Communications Based on Broadband Access Methods. - Shingo Ohmori; Yasushi Yamao; Nobuo Nakajima (Wirel. Pers. Commun., 2001)

On geolocation in ill-conditioned BS-MS layouts. - Yihong Qi; Takahiro Asai; Hitoshi Yoshino; Nobuo Nakajima (ICASSP (5), 2005)

The correlation of diversity/MIMO antenna for portable terminals. - Wannipa Yadum; Nobuo Nakajima (Wirel. Commun. Mob. Comput., 2007)

Design and Evaluation of Fiber Direct Coupling Optical Antennas for Next Generation Optical Wireless Communication Systems. - Koichi Takahashi; Nobuo Nakajima (BWCCA, 2010)

Performance Improvement of Multiantenna Cellular System Using Cooperation of Base Stations and Relay Stations. - Tetsuki Taniguchi; Yoshio Karasawa; Nobuo Nakajima (GLOBECOM, 2010)

Impact of base station location in MIMO cellular system using cooperative transmission. - Tetsuki Taniguchi; Yoshio Karasawa; Nobuo Nakajima (Wireless Days, 2010)

Wideband Low-Profile Printed Inverted-L Antenna in Mobile Phones for WLAN/WiMAX Application. - Wei Ni; Nobuo Nakajima (IEICE Trans. Commun., 2010)

Learning Multiple Band-Pass Filters for Sleep Stage Estimation: Towards Care Support for Aged Persons. - Keiki Takadama; Kazuyuki Hirose; Hiroyasu Matsushima; Kiyohiko Hattori; Nobuo Nakajima (IEICE Trans. Commun., 2010)

Simple Block-Diagonalization Based Suboptimal Method for MIMO Multiuser Downlink Transmission. - Tetsuki Taniguchi; Yoshio Karasawa; Nobuo Nakajima (DICTAP (2), 2011)

MIMO Cellular Systems with Irregular Cell Geometry Based on Base Station Cooperation. - Tetsuki Taniguchi; Yoshio Karasawa; Nobuo Nakajima (VTC Spring, 2011)

Analysis of cellular system using coordinated base stations with nonuniform and flexible cells. - Tetsuki Taniguchi; Yoshio Karasawa; Nobuo Nakajima (WPMC, 2011)

Performance Analysis of Base Station Cooperation in Multiantenna Cellular System. - Tetsuki Taniguchi; Yoshio Karasawa; Nobuo Nakajima (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

Experimental Study on the Capacity of Compact MIMO Antennas for Portable Terminals. - Wei Ni; Nobuo Nakajima (Wirel. Pers. Commun., 2011)

Effect of Cooperative Base Stations and Relay Stations for Disaster Recovery in MIMO Multi-cellular System. - Tetsuki Taniguchi; Yoshio Karasawa; Nobuo Nakajima (NGMAST, 2012)

System for Simultaneous Measurement of Breathing Rate and Heart Rate using Photoplethysmogram. - Toshinori Kagawa; Atsuko Kawamoto; Nobuo Nakajima (BODYNETS, 2013)

Radiation Distribution Measurements in Fukushima Prefecture. - Nobuo Nakajima (IEICE Trans. Commun., 2014)

Radio spectrum vision in 50 years from now: Consideration on long term spectrum refarming mainly below 3 GHz. - Yukitsuna Furuya; Jun-ichi Takada; Kazuhiko Fukawa; Nobuo Nakajima; Takeo Fujii; Yoshiyuki Takeda (CSCN, 2015)