| 2016 | WCNC | Practical evaluation of on-demand smallcell ON/OFF based on traffic model for 5G cellular networks. | Gia Khanh Tran, Hidekazu Shimodaira, Roya Ebrahim Rezagah, Kei Sakaguchi, Kiyomichi Araki |
| 2016 | WCNC | Practical evaluation of on-demand smallcell ON/OFF based on traffic model for 5G cellular networks. | Gia Khanh Tran, Hidekazu Shimodaira, Roya Ebrahim Rezagah, Kei Sakaguchi, Kiyomichi Araki |
| 2015 | PIMRC | Dynamic cell activation and user association for green 5G heterogeneous cellular networks. | Gia Khanh Tran, Hidekazu Shimodaira, Roya Ebrahim Rezagah, Kei Sakaguchi, Kiyomichi Araki |
| 2014 | PIMRC | Cell association method for multiband heterogeneous networks. | Hidekazu Shimodaira, Gia Khanh Tran, Kiyomichi Araki, Shinobu Nanba, Takahiro Hayashi, Kei Sakaguchi, Satoshi Konishi |
| 2013 | GLOBECOM | Large scale cooperation in cellular networks with non-uniform user distribution. | Roya E. Rezagah, Daisuke Matsuo, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Satoshi Konishi |
| 2013 | PIMRC | Experiment on MIMO cognitive radio using Tx/Rx beamforming. | Ryosuke Iwata, Vutha Va, Kei Sakaguchi, Kiyomichi Araki |
| 2013 | PIMRC | Experiment on battery-less sensor activation via multi-point wireless energy transmission. | Daiki Maehara, Ryota Akai, Gia Khanh Tran, Kei Sakaguchi, Seiichi Sampei, Kiyomichi Araki, Hiroshi Iwai |
| 2013 | PIMRC | Diamond cellular network - Optimal combination of small power basestations and CoMP cellular networks-. | Hidekazu Shimodaira, Gia Khanh Tran, Kiyomichi Araki, Kei Sakaguchi, Satoshi Konishi, Shinobu Nanba |
| 2012 | GLOBECOM | Shared Remote Radio Head architecture to realize semi-dynamic clustering in CoMP cellular networks. | Daisuke Matsuo, Roya E. Rezagah, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki, Shoji Kaneko, Noriaki Miyazaki, Satoshi Konishi, Yoji Kishi |
| 2012 | PIMRC | Optimization of picocell locations and its parameters in heterogeneous networks with hotspots. | Hidekazu Shimodaira, Gia Khanh Tran, Shinichi Tajima, Kei Sakaguchi, Kiyomichi Araki, Noriaki Miyazaki, Shoji Kaneko, Satoshi Konishi, Yoji Kishi |
| 2012 | PIMRC | Experiment on MIMO two-way relaying using transmit beamforming. | Vutha Va, Keiichi Mizutani, Yutaro Kida, Kei Sakaguchi, Kiyomichi Araki, Takehiro Miyamoto |
| 2012 | VTC | Proportionally Fair User Scheduling for Multiuser MIMO Systems with Unequal Average SNR Users. | Yuyuan Chang, Kiyomichi Araki |
| 2012 | VTC | Network Synchronization Scheme for Scalable Two-Way Multi-Hop Network Employing MIMO Network Coding. | Yutaro Kida, Keiichi Mizutani, Gia Khanh Tran, Takehiro Miyamoto, Kei Sakaguchi, Kiyomichi Araki |
| 2012 | VTC | Relay Placement of Two-Way Multi-Hop Relay Network with Power Adaptation in a Realistic Shadowing Environment. | Namzilp Lertwiram, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki |
| 2012 | VTC | Design of Predistorter Using Measured Nonlinear Characteristics of Power Amplifier with Memory Effect. | Yasuyuki Oishi, Shigekazu Kimura, Daisuke Takago, Yoshimasa Daido, Kiyomichi Araki, Eisuke Fukuda, Takeshi Takano |
| 2012 | VTC | Distributed Optimization of Transceiver Weights in MIMO Two-Way Multihop Networks. | Rindranirina Ramamonjison, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki |
| 2011 | PIMRC | A study on design of spatial fading emulator based on Clarke's model. | Daisuke Matsuo, Maki Arai, Kei Sakaguchi, Kiyomichi Araki |
| 2011 | PIMRC | A study on beam tilt angle of base station antennas for Base Station Cooperation systems. | Doppo Sugimura, Maki Arai, Kei Sakaguchi, Kiyomichi Araki, Takayuki Sotoyama |
| 2011 | VTC | Wireless Grid: Enabling Ubiquitous Sensor Networks with Wireless Energy Supply. | Ragil Putro Wicaksono, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki |
| 2010 | GLOBECOM | Routing and Power Allocation in MIMO Two-Way Multihop Networks: A New Cross-Layer Approach to Mitigate Interference. | Rindranirina Ramamonjison, Jonghyun Lee, Kei Sakaguchi, Kiyomichi Araki |
| 2010 | PIMRC | Dynamic cooperation set clustering on base station cooperation cellular networks. | Ian Dexter Garcia, Naoki Kusashima, Kei Sakaguchi, Kiyomichi Araki |
| 2010 | VTC | MIMO Radio Propagation Measurement for Two-Hop Relay Network on L-Shaped Corridor with Network Performance Analysis. | Namzilp Lertwiram, Gia Khanh Tran, Keiichi Mizutani, Kei Sakaguchi, Kiyomichi Araki |
| 2010 | VTC | Hardware Prototype for Two-Way Multi-Hop Relay Network with MIMO Network Coding. | Keiichi Mizutani, Takehiro Miyamoto, Takamichi Kanno, Kei Sakaguchi, Kiyomichi Araki |
| 2010 | VTC | Network Synchronization for Two-Way Multi-Hop Relay Networks with Block Modulation. | Keiichi Mizutani, Kei Sakaguchi, Kiyomichi Araki |
| 2010 | VTC | An Efficient Retransmission Scheme for MIMO Two-Way Relay Network Employing Network Coding. | Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki |
| 2009 | PIMRC | Robust design for multiuser block diagonalization MIMO downlink system with CSI feedback delay. | Yuyuan Chang, Kiyomichi Araki |
| 2009 | PIMRC | Wireless mesh network performance: MIMO two-way relay vs. CSMA/CA based protocols. | Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki |
| 2008 | WCNC | Cell Planning for Cooperative Transmission. | Ian Dexter Garcia, Kei Sakaguchi, Kiyomichi Araki |
| 2007 | VTC | Novel Multi-Stage Transmultiplexing Digital Down Converter for Implementation of RFID (ISO18000-3 MODE 2) Reader/Writer. | Yuichi Nakagawa, Masahiro Muraguchi, Hideki Kawamura, Kyoji Ohashi, Kei Sakaguchi, Kiyomichi Araki |
| 2006 | PIMRC | Experimental Analysis of MIMO-OFDM Eigenmode Transmission with MMSE Interference Canceller. | Yuichi Kakishima, Hai Doan Le, See Ho Ting, Kei Sakaguchi, Kiyomichi Araki |
| 2006 | PIMRC | Performance Analysis of Diversity Techniques for Multihop Cooperative Networks with Adaptive Transmission. | Bao Thi Ngoc Pham, Hidekazu Murata, Kiyomichi Araki |
| 2006 | VTC | Measurement of Time-Varying MIMO Channel for Performance Analysis of Closed-Loop Transmission. | Kei Mizutani, Kei Sakaguchi, Jun-ichi Takada, Kiyomichi Araki |
| 2006 | VTC | Multiple Access Performance of TR-UWB System Using a Combined PPM and Differential Multi-Pulse Modulation. | Jakkrapong Sumethnapis, Kiyomichi Araki |
| 2006 | VTC | Performance Analysis of MIMO-OFDM Systems using Indoor Wideband MIMO Channel Measurement Data. | Gia Khanh Tran, Nguyen Dung Dao, Kei Sakaguchi, Kiyomichi Araki, Hiroshi Iwai, Tsutomu Sakata, Koichi Ogawa |
| 2005 | PIMRC | Measurements on Area Coverage of 5GHZ Band MIMO-OFDM System in Residential Home Environment. | Nguyen Dung Dao, Hai-Yeow-Eugene Chua, Kei Sakaguchi, Kiyomichi Araki, Hiroshi Iwai, Tsutomu Sakata, Koichi Ogawa |
| 2005 | PIMRC | An Effective IQ Imbalance Compensation Scheme for MIMO-OFDM Communication System. | Hiroyuki Kamata, Kei Sakaguchi, Kiyomichi Araki |
| 2004 | GLOBECOM | Cooperative relaying scheme with space time code for multihop communications among single antenna terminals. | Tsuyoshi Miyano, Hidekazu Murata, Kiyomichi Araki |
| 2004 | PIMRC | Experimental and analytical investigation of MIMO channel capacity in an indoor line-of-sight (LOS) environment. | Hai-Yeow-Eugene Chua, Kei Sakaguchi, Kiyomichi Araki |
| 2004 | PIMRC | FPGA implementation of 44 MIMO test-bed for spatial multiplexing systems. | Mengfei Cui, Hidekazu Murata, Kiyomichi Araki |
| 2004 | PIMRC | A robust and low complexity adaptive algorithm for MIMO eigenmode transmission system under practical conditions. | See Ho Ting, Kei Sakaguchi, Kiyomichi Araki |
| 2004 | PIMRC | Performance of LDPC based turbo equalization for spatial multiplexing. | Takaaki Zakoji, Hidekazu Murata, Kiyomichi Araki |
| 1998 | MMSP | A study on source-channel encoding of AC coefficients for compressed video transmission with multicode DS/SS modulation. | Yukitoshi Sanada, Kiyomichi Araki |
| 1998 | PKC | Overview of Elliptic Curve Cryptography. | Kiyomichi Araki, Takakazu Satoh, Shinji Miura |
| 1997 | PIMRC | A BER floor simulation for the indoor multipath environment. | Jun-ichi Takada, Hideo Mochida, Kiyomichi Araki |