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Yukihiko Okumura
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2020 – today
- 2021
- [j33]Nobuhide Nonaka, Kazushi Muraoka, Tatsuki Okuyama, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai, Yoshihiro Matsumura:
28 GHz-Band Experimental Trial Using the Shinkansen in Ultra High-Mobility Environment for 5G Evolution. IEICE Trans. Commun. 104-B(9): 1000-1008 (2021) - [j32]Tatsuki Okuyama, Nobuhide Nonaka, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai:
Base Station Cooperation Technologies Using 28GHz-Band Digital Beamforming in High-Mobility Environments. IEICE Trans. Commun. 104-B(9): 1009-1016 (2021) - [j31]Nobuhide Nonaka, Satoshi Suyama, Tatsuki Okuyama, Kazushi Muraoka, Yukihiko Okumura:
Two-Step User Selection Algorithm in Multi-User Massive MIMO with Hybrid Beamforming for 5G Evolution. IEICE Trans. Commun. 104-B(9): 1089-1096 (2021) - 2020
- [j30]Manabu Sakai
, Kenichiro Kamohara, Hiroki Iura, Hiroshi Nishimoto, Kazuaki Ishioka, Yoshitaka Murata, Masayuki Yamamoto
Experimental Field Trials on MU-MIMO Transmissions for High SHF Wide-Band Massive MIMO in 5G. IEEE Trans. Wirel. Commun. 19(4): 2196-2207 (2020) - [c74]Nobuhide Nonaka, Kazushi Muraoka, Tatsuki Okuyama, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai, Yoshihiro Matsumura:
28 GHz-Band Experimental Trial at 283 km/h Using the Shinkansen for 5G Evolution. VTC Spring 2020: 1-5 - [c73]Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Yukihiko Okumura, Takahiro Asai:
Two Millimeter-Wave Base Station Cooperation Technologies in High-Mobility Environments for 5G Evolution. VTC Spring 2020: 1-5 - [c72]Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Yukihiko Okumura, Takahiro Asai:
Outdoor Experimental Trials of Millimeter-Wave Base Station Cooperation with Digital Beamforming in High-Mobility Environments for 5G Evolution. VTC Fall 2020: 1-5
2010 – 2019
- 2019
- [j29]Minoru Inomata, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura, Motoharu Sasaki
Radio Propagation Prediction Method Using Point Cloud Data Based on Hybrid of Ray-Tracing and Effective Roughness Model in Urban Environments. IEICE Trans. Commun. 102-B(1): 51-62 (2019) - [j28]Yukihiko Okumura, Satoshi Suyama, Jun Mashino, Kazushi Muraoka:
Recent Activities of 5G Experimental Trials on Massive MIMO Technologies and 5G System Trials Toward New Services Creation. IEICE Trans. Commun. 102-B(8): 1352-1362 (2019) - [j27]Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
Digital Beamforming Algorithm for 5G Low-SHF Band Massive MIMO. IEICE Trans. Commun. 102-B(8): 1371-1381 (2019) - [j26]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Kazushi Muraoka, Kohei Izui, Kenichiro Yamazaki, Yukihiko Okumura:
Performance Evaluation of Low Complexity Digital Beamforming Algorithms by Link-Level Simulations and Outdoor Experimental Trials for 5G Low-SHF-Band Massive MIMO. IEICE Trans. Commun. 102-B(8): 1382-1389 (2019) - [j25]Takaharu Kobayashi, Masafumi Tsutsui, Takashi Dateki, Hiroyuki Seki, Morihiko Minowa, Chiyoshi Akiyama, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
Experimental Study of Large-Scale Coordinated Multi-User MIMO for 5G Ultra High-Density Distributed Antenna Systems. IEICE Trans. Commun. 102-B(8): 1390-1400 (2019) - [j24]Yi Jiang, Kenichiro Yamazaki, Toshihiro Hayata, Kohei Izui, Kanada Nakayasu, Toshifumi Sato, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
Performance Evaluation of Downlink Multi-User Massive MIMO with Configurable Active Antenna System and Inter Access Point Coordination in Low-SHF-Band. IEICE Trans. Commun. 102-B(8): 1401-1410 (2019) - [j23]Yuta Takahashi, Tatsuki Okuyama, Kazushi Muraoka, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
Field Trial of 28GHz Band 5G Downlink Massive MIMO Employing Beam Tracking in Railway Environment. IEICE Trans. Commun. 102-B(8): 1411-1417 (2019) - [j22]Takumi Higuchi, Hideki Shingu, Noriyuki Shimizu, Takeshi Miyagoshi, Hiroaki Asano, Yoshifumi Morihiro, Yukihiko Okumura:
Real-Time Video Streaming Based on TFRC Using Communication Logging for 5G HetNet. IEICE Trans. Commun. 102-B(8): 1538-1546 (2019) - [c71]Yukihiko Okumura:
R&D Activities for 5G Radio Access Technologies Using SHF Bands and Co-Creation of New Services Using 5G. VLSI-DAT 2019: 1 - [c70]Shinya Kumagai, Morihiko Minowa, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura, Takaharu Kobayashi, Teppei Oyama, Chiyoshi Akiyama, Masafumi Tsutsui, Daisuke Jitsukawa, Takashi Seyama, Takashi Dateki, Hiroyuki Seki:
Experimental Trials of 5G Ultra High-Density Distributed Antenna Systems. VTC Fall 2019: 1-5 - [c69]Morihiko Minowa, Hiroyuki Seki, Yukihiko Okumura, Satoshi Suyama, Jun Terada, Satoshi Shigematsu, Yasushi Takatori, Hiroaki Asano, Yukio Hirano, Yasushi Yamao, Fumiyuki Adachi
5G R&D Activities for High Capacity Technologies with Ultra High-Density Multi-Band and Multi-Access Layered Cells. VTC Spring 2019: 1-5 - [c68]Nobuhide Nonaka, Kazushi Muraoka, Satoshi Suyama, Jun Mashino, Kenichiro Kamohara, Manabu Sakai, Hiroki Iura, Masayuki Nakazawa, Yukihiko Okumura:
Indoor Experimental Trial in High SHF Wide-Band Massive MIMO Hybrid Beamforming. VTC Fall 2019: 1-5 - [c67]Yukihiko Okumura, Satoshi Suyama, Naoto Ishii, Yasushi Maruta, Akihiro Okazaki, Atsushi Okamura, Jun Terada, Takeshi Onizawa:
5G R&D Achievements for High-Data-Rate and Low-Power-Consumption Radio Access Technologies with Higher-Frequency-Band and Wider-Bandwidth Massive MIMO. VTC Spring 2019: 1-5 - [c66]Tatsuki Okuyama, Kazushi Muraoka, Shinsuke Ibi, Takumi Takahashi, Satoshi Suyama, Jun Mashino, Seiichi Sampei, Yukihiko Okumura:
Uplink Multi-User Massive MIMO Using Gaussian BP in Highly Correlated Actual Environments. VTC Fall 2019: 1-5 - [c65]Kenta Tsuge, Yuyuan Chang, Kazuhiko Fukawa, Satoshi Suyama, Yukihiko Okumura:
Parameter Estimation for Block Diagonalization Based Hybrid Beamforming in Massive MIMO Communications. VTC Fall 2019: 1-5 - [c64]Masaaki Yoshino, Hideki Shingu, Hiroaki Asano, Yoshifumi Morihiro, Yukihiko Okumura:
Optimal Cell Selection Method for 5G Heterogeneous Network. VTC Spring 2019: 1-5 - [c63]Koshiro Kitao, Tetsuro Imai, Minoru Inomata, Yukihiko Okumura, Takehiro Nakamura, Kiyoshi Yanagisawa, Taro Eichler, Wilhelm Keusgen:
Study on Path Identification at 40 GHz Band in NLOS Urban Street Cell Environment. WCNC 2019: 1-4 - [c62]Nobuhide Nonaka, Kazushi Muraoka, Satoshi Suyama, Yukihiko Okumura:
Two-Step User Selection Algorithm for Multi-User Massive MIMO with Hybrid Beamforming. WPMC 2019: 1-5 - 2018
- [j21]Ngochao Tran, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura, Takehiro Nakamura, Hiroshi Tokuda, Takao Miyake, Robin Wang, Zhu Wen, Hajime Kitano, Roger Nichols:
Scattering Characteristics of the Human Body in 67-GHz Band. IEICE Trans. Commun. 101-B(6): 1434-1442 (2018) - [c61]Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura:
Cell selection scheme for handover reduction based on moving direction and velocity of UEs for 5G multi-layered radio access networks. ICOIN 2018: 362-367 - [c60]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura, Kohei Izui, Kenichiro Yamazaki:
5G Experimental Trials of 4.5 GHz Band Digital Beamforming in Dense Urban Area. PIMRC 2018: 1130-1131 - [c59]Yuta Takahashi, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
5G Downlink Throughput Performance of 28 GHz Band Experimental Trial at 300 km/h. PIMRC 2018: 1140-1141 - [c58]Anass Benjebbour, Yoshihisa Kishiyama, Yukihiko Okumura, Chien-Hwa Hwang, I-Kang Fu:
Outdoor Experimental Trials of Advanced Downlink NOMA Using Smartphone-Sized Devices. VTC Spring 2018: 1-6 - [c57]Takumi Higuchi, Noriyuki Shimizu, Hideki Shingu, Yoshifumi Morihiro, Yukihiko Okumura, Takeshi Miyagoshi, Masaaki Endo, Hiroaki Asano:
Video Sending Rate Prediction Based on Communication Logging Database for 5G HetNet. VTC Spring 2018: 1-6 - [c56]Akiyoshi Inoki, Hirantha Abeysekera, Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Munehiro Matsui, Kenichi Kawamura, Yukihiko Okumura, Yasushi Takatori:
Experimental Evaluation of Starved AP Identification and Management Schemes in Mobile Cooperative WLAN System toward 5G. VTC Spring 2018: 1-5 - [c55]Yasushi Maruta, Kenichiro Yamazaki, Kohei Izui, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Kanada Nakayasu, Toshifumi Sato, Yukihiko Okumura:
Outdoor DL MU-MIMO and Inter Access Point Coordination Performance of Low-SHF-Band C-RAN Massive MIMO System for 5G. VTC Spring 2018: 1-5 - [c54]Manabu Sakai, Kenji Nakagawa, Hiroki Iura, Naofumi Iwayama, Akihiro Okazaki, Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Atsushi Okamura, Yukihiko Okumura:
Indoor Experimental Trial on Hybrid 16-Beam Spatial-Multiplexing for High SHF Wide-Band Massive MIMO in 5G. VTC Fall 2018: 1-5 - [c53]Kenichiro Yamazaki, Kohei Izui, Kanada Nakayasu, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Toshifumi Sato, Yukihiko Okumura:
Field Experimental DL MU-MIMO Evaluations of Low-SHF-Band C-RAN Massive MIMO System with over 100 Antenna Elements for 5G. VTC Fall 2018: 1-5 - 2017
- [j20]Minoru Inomata, Motoharu Sasaki
Path Loss Model for Outdoor-to-Indoor Corridor Up to 40GHz Band in Microcell Environments. IEICE Trans. Commun. 100-B(2): 242-251 (2017) - [j19]Nobutaka Omaki, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura:
Improving Accuracy of Ray-Tracing Prediction in Non Line-of-Sight (NLOS) Urban Street Cell Environment beyond 6GHz. IEICE Trans. Commun. 100-B(4): 566-574 (2017) - [j18]Tatsunori Obara, Tatsuki Okuyama, Yuki Inoue, Yuuichi Aoki, Satoshi Suyama, Jaekon Lee, Yukihiko Okumura:
Experimental Trial of 5G Super Wideband Wireless Systems Using Massive MIMO Beamforming and Beam Tracking Control in 28GHz Band. IEICE Trans. Commun. 100-B(8): 1256-1268 (2017) - [j17]Yuki Inoue, Shohei Yoshioka, Yoshihisa Kishiyama, Satoshi Suyama, Yukihiko Okumura, James Kepler, Mark Cudak:
Field Experimental Evaluation on 5G Millimeter Wave Radio Access for Mobile Communications. IEICE Trans. Commun. 100-B(8): 1269-1276 (2017) - [j16]Akiyoshi Inoki, Hirantha Abeysekera, Munehiro Matsui, Kenichi Kawamura, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi, Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura:
Throughput Improvement of Mobile Cooperative WLAN Systems with Identifying and Management of Starved APs/UEs for 5G. IEICE Trans. Commun. 100-B(8): 1366-1376 (2017) - [j15]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
5G Distributed Massive MIMO with Ultra-High Density Antenna Deployment in Low SHF Bands. IEICE Trans. Commun. 100-B(10): 1921-1927 (2017) - [c52]Ryota Nakao, Jun Mashino, Satoshi Suyama, Yukihiko Okumura, Hiroyuki Otsuka:
3D beamforming effect for backhaul link in time-division relaying. ICUFN 2017: 592-594 - [c51]Yuki Inoue, Shohei Yoshioka, Yoshihisa Kishiyama, Tsuneomi Haruna, Takeshi Tanaka, Armin Splett, Satoshi Suyama, Yukihiko Okumura, Henrik Liljestrom:
Field Experimental Evaluation of Low SHF 5G Radio Access System Employing Higher Rank MIMO. VTC Spring 2017: 1-5 - [c50]Jun Mashino, Kei Satoh, Satoshi Suyama, Yuki Inoue, Yukihiko Okumura:
5G Experimental Trial of 28 GHz Band Super Wideband Transmission Using Beam Tracking in Super High Mobility Environment. VTC Spring 2017: 1-5 - [c49]Hiroyuki Miyazaki, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
User Selection and Rank Adaptation for Multi-User Massive MIMO with Hybrid Beamforming. VTC Fall 2017: 1-5 - [c48]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura, Kotaro Shiizaki, Chiyoshi Akiyama, Masafumi Tsutsui, Hiroyuki Seki, Morihiko Minowa:
Antenna Deployment of 5G Ultra High-Density Distributed Massive MIMO by Low-SHF-Band Indoor and Outdoor Experiments. VTC Fall 2017: 1-5 - [c47]Hiroyuki Seki, Masafumi Tsutsui, Morihiko Minowa, Kotaro Shiizaki, Chiyoshi Akiyama, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
Field Experiment of High-Capacity Technologies for 5G Ultra High-Density Distributed Antenna Systems. VTC Spring 2017: 1-5 - [c46]Kenichiro Yamazaki, Toshifumi Sato, Yasushi Maruta, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura:
DL MU-MIMO Field Trial with 5G Low SHF Band Massive MIMO Antenna. VTC Spring 2017: 1-5 - [c45]Yuki Inoue, Shohei Yoshioka, Yoshihisa Kishiyama, James Kepler, Mark Cudak, Satoshi Suyama, Yukihiko Okumura:
Field Experimental Trials for 5G Mobile Communication System Using 70 GHz-Band. WCNC Workshops 2017: 1-6 - [c44]Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
5G massive MIMO with digital beamforming and two-stage channel estimation for low SHF band. Wireless Days 2017: 107-112 - [c43]Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura:
Digital beamforming algorithm for 5G low-SHF-band massive MIMO with intersite coordination. WPMC 2017: 470-475 - [c42]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Shohei Yoshioka, Yukihiko Okumura, Kenichiro Yamazaki, Daisuke Nose, Yasushi Maruta:
Experimental evaluation of digital beamforming for 5G multi-site massive MIMO. WPMC 2017: 476-480 - [c41]Yuta Takahashi, Yuki Inoue, Shohei Yoshioka, Yoshihisa Kishiyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura, Tsuneomi Haruna, Takeshi Tanaka, Armin Splett, Henrik Liljestrom:
Field experimental evaluation of higher rank MIMO in quad-directional UE antenna configuration for 5G radio access system. WPMC 2017: 542-546 - 2016
- [j14]Kentaro Saito, Tetsuro Imai, Koshiro Kitao, Yukihiko Okumura:
Cluster Power Variation Characteristics for 3GHz-Band MIMO Communication System in a Crowded Indoor Environment. IEICE Trans. Commun. 99-B(5): 1131-1142 (2016) - [c40]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
Antenna deployment for 5G ultra high-density distributed antenna system at low SHF bands. CSCN 2016: 11-16 - [c39]Satoshi Suyama, Jun Mashino, Yoshihisa Kishiyama, Yukihiko Okumura:
5G multi-antenna technology and experimental trials. ICCS 2016: 1-6 - [c38]Tatsuki Okuyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura:
Flexible antenna deployment for 5G distributed Massive MIMO in low SHF bands. ICSPCS 2016: 1-6 - [c37]Norihiro Naganuma, Sho Nakazawa, Satoshi Suyama, Yukihiko Okumura, Hiroyuki Otsuka:
Adaptive control CRE technique for eICIC in HetNet. ICUFN 2016: 4-6 - [c36]Tatsunori Obara, Yuki Inoue, Yuuichi Aoki, Satoshi Suyama, Jaekon Lee, Yukihiko Okumura:
Experiment of 28 GHz Band 5G super wideband transmission using beamforming and beam tracking in high mobility environment. PIMRC 2016: 1-5 - [c35]Shohei Yoshioka, Yuki Inoue, Satoshi Suyama, Yoshihisa Kishiyama, Yukihiko Okumura, James Kepler, Mark Cudak:
Field experimental evaluation of beamtracking and latency performance for 5G mmWave radio access in outdoor mobile environment. PIMRC 2016: 1-6 - [c34]Akiyoshi Inoki, B. Hirantha Sithira Abeysekera, Munehiro Matsui, Takeo Ichikawa, Masato Mizoguchi, Akira Kishida, Akira Yamada, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura:
Starved wireless LAN device identifying scheme using beacon signals. WPMC 2016: 459-463 - 2015
- [j13]Ngochao Tran, Tetsuro Imai, Yukihiko Okumura:
Model for Estimating Effects of Human Body Shadowing in High Frequency Bands. IEICE Trans. Commun. 98-B(5): 773-782 (2015) - [j12]Koshiro Kitao, Tetsuro Imai, Kentaro Saito, Yukihiko Okumura:
Experimental Study on Ray Based Spatio-Temporal Channel Characteristics in Indoor Environment. IEICE Trans. Commun. 98-B(5): 798-805 (2015) - [j11]Tatsunori Obara, Satoshi Suyama, Jiyun Shen, Yukihiko Okumura:
Joint Processing of Analog Fixed Beamforming and CSI-Based Precoding for Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands. IEICE Trans. Commun. 98-B(8): 1474-1481 (2015) - [c33]Tatsunori Obara, Satoshi Suyama, Yukihiko Okumura:
Channel estimation for super high bit rate massive MIMO systems using joint processing of analog fixed beamforming and CSI-based precoding. CSCN 2015: 300-304 - [c32]Yuki Inoue, Yoshihisa Kishiyama, Satoshi Suyama, James Kepler, Mark Cudak, Yukihiko Okumura:
Field Experiments on 5G mmW Radio Access with Beam Tracking in Small Cell Environments. GLOBECOM Workshops 2015: 1-6 - [c31]Akinori Taira, Hiroki Iura, Kenji Nakagawa, Shigeru Uchida, Kazuaki Ishioka, Akihiro Okazaki, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura, Atsushi Okamura:
Performance Evaluation of 44GHz Band Massive MIMO Based on Channel Measurement. GLOBECOM Workshops 2015: 1-6 - [c30]Keisuke Saito, Anass Benjebbour, Yoshihisa Kishiyama, Yukihiko Okumura, Takehiro Nakamura:
Performance and design of SIC receiver for downlink NOMA with open-loop SU-MIMO. ICC Workshops 2015: 1161-1165 - [c29]Koshiro Kitao, Tetsuro Imai, Ngochao Tran, Nobutaka Omaki, Yukihiko Okumura, Minoru Inomata, Motoharu Sasaki, Wataru Yamada:
Path loss prediction model for 800 MHz to 37 GHz in NLOS microcell environment. PIMRC 2015: 414-418 - [c28]Tatsunori Obara, Tatsuki Okuyama, Yuuichi Aoki, Satoshi Suyama, Jaekon Lee, Yukihiko Okumura:
Indoor and outdoor experimental trials in 28-GHz band for 5G wireless communication systems. PIMRC 2015: 846-850 - [c27]Yuki Inoue, Yoshihisa Kishiyama, Yukihiko Okumura, James Kepler, Mark Cudak:
Experimental evaluation of downlink transmission and beam tracking performance for 5G mmW radio access in indoor shielded environment. PIMRC 2015: 862-866 - [c26]Riichi Kudo, B. A. Hirantha Sithira Abeysekera, Yasushi Takatori, Takeo Ichikawa, Masato Mizoguchi, Hiroto Yasuda, Akira Yamada, Yukihiko Okumura:
Channel Access Acquisition Mechanism Coupled with Cellular Network for Unlicensed Spectrum. VTC Spring 2015: 1-5 - [c25]Daisuke Kurita, Yuki Inoue, Yoshihisa Kishiyama, Yukihiko Okumura:
Field Experiments on Combination of Downlink CoMP and Smart Vertical MIMO in LTE-Advanced. VTC Fall 2015: 1-5 - [c24]Sho Nakazawa, Kohei Iwai, Mitsutoshi Nakamura, Takahiro Kubo, Takahiro Asai, Yukihiko Okumura, Hiroyuki Otsuka:
Performance of Fiber-Optic Inband Relaying against Self-Interference in Both Uplink and Downlink. VTC Fall 2015: 1-5 - [c23]Hiroto Yasuda, Akira Kishida, Jiyun Shen, Yoshifumi Morihiro, Yasufumi Morioka, Satoshi Suyama, Akira Yamada, Yukihiko Okumura, Takahiro Asai:
A Study on Moving Cell in 5G Cellular System. VTC Fall 2015: 1-5 - 2014
- [j10]Riichi Kudo, Yasushi Takatori, B. Hirantha Sithira Abeysekera, Yasuhiko Inoue, Atsushi Murase, Akira Yamada, Hiroto Yasuda, Yukihiko Okumura:
An advanced Wi-Fi data service platform coupled with a cellular network for future wireless access. IEEE Commun. Mag. 52(11): 46-53 (2014) - [j9]Yusuke Ohwatari, Nobuhiko Miki, Yuta Sagae, Yukihiko Okumura:
Investigation on Interference Rejection Combining Receiver for Space-Frequency Block Code Transmit Diversity in LTE-Advanced Downlink. IEEE Trans. Veh. Technol. 63(1): 191-203 (2014) - [c22]Jiyun Shen, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura:
Requirements of power amplifier on super high bit rate massive MIMO OFDM transmission using higher frequency bands. GLOBECOM Workshops 2014: 433-437 - [c21]Satoshi Suyama, Jiyun Shen, Hiroshi Suzuki, Kazuhiko Fukawa, Yukihiko Okumura:
Evaluation of 30 Gbps super high bit rate mobile communications using channel data in 11 GHz band 24×24 MIMO experiment. ICC 2014: 5203-5208 - [c20]Sho Nakazawa, Mitsutoshi Nakamura, Shingo Matsuoka, Kazuaki Takeda, Satoshi Suyama, Yukihiko Okumura, Hiroyuki Otsuka:
Performance evaluation for different types of small cells with optimized transmssion power. ICCS 2014: 328-332 - [c19]Tatsunori Obara, Satoshi Suyama, Jiyun Shen, Yukihiko Okumura:
Joint fixed beamforming and eigenmode precoding for super high bit rate massive MIMO systems using higher frequency bands. PIMRC 2014: 607-611 - [c18]Yasufumi Morioka, Yoshifumi Morihiro, Akira Yamada, Yukihiko Okumura:
Experimental Analysis of Public Wireless LAN Quality for Moving Users. VTC Fall 2014: 1-5 - [c17]Hiroyuki Otsuka, Naohiro Tanoi, Naoto Ogura, Takahiro Kubo, Takahiro Asai, Yukihiko Okumura:
Performance Analysis of Fiber-Optic Inband Relaying in the Presence of Self-Interference. VTC Fall 2014: 1-5 - [c16]Kentaro Saito
Cluster Power Variation Estimation for MIMO Channel Modeling in Crowded Indoor Environment. VTC Fall 2014: 1-5 - [c15]Kentaro Saito
2 GHz Band MIMO Channel Properties in Urban Small Cell Scenario in Crowded Area. VTC Fall 2014: 1-5 - [c14]Yousuke Sano, Yusuke Ohwatari, Yuta Sagae, Akihito Morimoto, Yukihiko Okumura:
Investigation on Feedback Channel State Information for Interference Rejection Combining Receiver in LTE-Advanced Downlink. VTC Spring 2014: 1-6 - [c13]Ngochao Tran, Tetsuro Imai, Yukihiko Okumura:
Study on Characteristics of Human Body Shadowing in High Frequency Bands: Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Networks. VTC Fall 2014: 1-5 - 2013
- [j8]Akihito Morimoto, Nobuhiko Miki, Hiroyuki Ishii, Daisuke Nishikawa, Yukihiko Okumura:
Investigation on Transmission Power Control Suitable for Heterogeneous Network Employing Cell Range Expansion in LTE-Advanced Uplink. IEICE Trans. Commun. 96-B(4): 1051-1060 (2013) - [j7]Yusuke Ohwatari, Akihito Morimoto, Nobuhiko Miki, Yukihiko Okumura:
Performance Evaluation of Interference Rejection Combining Receiver in Heterogeneous Networks for LTE-Advanced Downlink. IEICE Trans. Commun. 96-B(6): 1265-1276 (2013) - [j6]Akihito Morimoto, Nobuhiko Miki, Yukihiko Okumura:
Investigation of Inter-Cell Interference Coordination Applying Transmission Power Reduction in Heterogeneous Networks for LTE-Advanced Downlink. IEICE Trans. Commun. 96-B(6): 1327-1337 (2013) - [j5]Kentaro Saito, Koshiro Kitao, Tetsuro Imai, Yukihiko Okumura:
Dynamic Channel Modeling Using Particle Filtering for Wireless MIMO Systems in Urban Environment. IEICE Trans. Commun. 96-B(10): 2372-2379 (2013) - [c12]Akihito Morimoto, Nobuhiko Miki, Yukihiko Okumura:
Performance Evaluation of Reduced Power Inter-cell Interference Coordination for Downlink in LTE-Advanced Heterogeneous Networks. EW 2013 - [c11]Koshiro Kitao, Tetsuro Imai, Kentaro Saito
Elevation directional channel properties at BS to evaluate 3D beamforming. ISPACS 2013: 640-644 - [c10]Yusuke Ohwatari, Akihito Morimoto, Nobuhiko Miki, Yukihiko Okumura:
Investigation on interference rejection combining receiver in heterogeneous networks for LTE-Advanced downlink. SPAWC 2013: 315-319 - [c9]Hideyuki Morosa, Hiroki Harada, Akihito Morimoto, Satoshi Nagata, Hiroyuki Ishii, Yukihiko Okumura:
Cell identification performance based on hierarchical synchronization channels in dense small cell environment. SPAWC 2013: 734-738 - 2012
- [j4]Yousuke Sano, Yusuke Ohwatari, Nobuhiko Miki, Yuta Sagae, Yukihiko Okumura, Yasutaka Ogawa, Takeo Ohgane, Toshihiko Nishimura
Impact on Inter-Cell Interference of Reference Signal for Interference Rejection Combining Receiver in LTE-Advanced Downlink. IEICE Trans. Commun. 95-B(12): 3728-3738 (2012) - [j3]Yousuke Sano, Yusuke Ohwatari, Nobuhiko Miki, Akihito Morimoto, Yukihiko Okumura:
Link Performance Modeling of Interference Rejection Combining Receiver in System Level Evaluation for LTE-Advanced Downlink. IEICE Trans. Commun. 95-B(12): 3739-3751 (2012) - [c8]Yousuke Sano, Yusuke Ohwatari, Nobuhiko Miki, Akihito Morimoto, Yukihiko Okumura:
Investigation on link performance modeling of advanced receiver employing interference rejection combining in system level evaluation for LTE-Advanced downlink. ISWCS 2012: 919-923 - [c7]Yusuke Ohwatari, Nobuhiko Miki, Yuta Sagae, Yukihiko Okumura:
Investigation on advanced receiver employing interference rejection combining for space-frequency block code transmit diversity in LTE-Advanced downlink. PIMRC 2012: 2414-2420 - 2011
- [j2]Yuya Saito, Jaturong Sangiamwong, Nobuhiko Miki, Satoshi Nagata, Tetsushi Abe, Yukihiko Okumura:
Performance Investigation on Cell Selection Schemes Associated with Downlink Inter-Cell Interference Coordination in Heterogeneous Networks for LTE-Advanced. IEICE Trans. Commun. 94-B(12): 3304-3311 (2011) - [j1]Yusuke Ohwatari, Nobuhiko Miki, Tetsushi Abe, Satoshi Nagata, Yukihiko Okumura:
Investigation on Data Signal Muting to Improve Channel Estimation Accuracy in Downlink Coordinated Multiple-Point Transmission in LTE-Advanced. IEICE Trans. Commun. 94-B(12): 3321-3334 (2011) - [c6]Jaturong Sangiamwong, Yuya Saito, Nobuhiko Miki, Tetsushi Abe, Satoshi Nagata, Yukihiko Okumura:
Investigation on Cell Selection Methods Associated with Inter-cell Interference Coordination in Heterogeneous Networks for LTE-Advanced Downlink. EW 2011 - [c5]Yusuke Ohwatari, Yusuke Miki, Tetsushi Abe, Satoshi Nagata, Yukihiko Okumura:
Investigation on improvement in channel estimation accuracy using data signal muting in downlink coordinated multiple-point transmission and reception in LTE-Advanced. WCNC 2011: 1288-1293 - 2010
- [c4]Masami Yabusaki, Yukihiko Okumura, Motoshi Tamura:
Next Mobile Network Architecture. ICC 2010: 1-5
2000 – 2009
- 2009
- [c3]Hiromasa Fujii, Takahiro Asai, Yukihiko Okumura, Ryoko Kawauchi, Ikuo Hiradate, Hayato Akazawa, Takayuki Sotoyama:
Capacity achievable by spectrum sharing with adaptive transmit power control: Based on field measurements. CrownCom 2009: 1-6 - [c2]Toshihisa Fujiwara, Shigeru Tomisato, Masaharu Hata, Hiromasa Fujii, Takahiro Asai, Yukihiko Okumura:
An adaptive soft clipping method for spectrum sharing OFDMA systems. PIMRC 2009: 305-309 - [c1]Jaturong Sangiamwong, Takahiro Asai, Junichiro Hagiwara, Yukihiko Okumura, Tomoyuki Ohya:
Joint Multi-Filter Design for Full-Duplex MU-MIMO Relaying. VTC Spring 2009
Coauthor Index
[j33] [j32] [j31] [j30] [c74] [c73] [c72] [j28] [j27] [j26] [j25] [j24] [j23] [c70] [c69] [c68] [c67] [c66] [c65] [c62] [c60] [c59] [c55] [c54] [c53] [j18] [j17] [j15] [c52] [c51] [c50] [c49] [c48] [c47] [c46] [c45] [c44] [c43] [c42] [c41] [c40] [c39] [c38] [c37] [c36] [c35] [j11] [c33] [c32] [c31] [c28] [c23] [c22] [c21] [c20] [c19]
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