Takahiro Asai

According to our database, Takahiro Asai authored at least 69 papers between 1994 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2023

Unified 6G Waveform Design Based on DFT-s-OFDM Enhancements.

Juan Liu, Xiaolin Hou, Wenjia Liu, Lan Chen, Yoshihisa Kishiyama, Takahiro Asai

IEICE Trans. Commun., June, 2023

Near-Field Beam Management with Ring-type Codebook.

Fan Wang, Xin Wang, Xiang Li, Xiaolin Hou, Lan Chen, Satoshi Suyama, Takahiro Asai

Proceedings of the 97th IEEE Vehicular Technology Conference, 2023

Reconfigurable Intelligent Surface Aided Joint Communication And Positioning.

Fan Wang, Xiaolin Hou, Xin Wang, Xiang Li, Lan Chen, Takahiro Asai

Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

Time-Varying Channel Prediction for Pilot Contamination Mitigation in Hybrid Massive MIMO Communications.

Yuki Ono, Yuyuan Chang, Kazuhiko Fukawa, Satoshi Suyama, Takahiro Asai

Proceedings of the 97th IEEE Vehicular Technology Conference, 2023

Unified Multi-User Multiplexing Scheme With Enhanced NOMA (eNOMA) for HAPS.

Wenjia Liu, Xiaolin Hou, Lan Chen, Takahiro Asai

Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

2022

Deep Learning-Based Massive MIMO CSI Acquisition for 5G Evolution and 6G.

Xin Wang, Xiaolin Hou, Lan Chen, Yoshihisa Kishiyama, Takahiro Asai

IEICE Trans. Commun., December, 2022

Non-Orthogonal Physical Layer (NOPHY) Design towards 5G Evolution and 6G.

Xiaolin Hou, Wenjia Liu, Juan Liu, Xin Wang, Lan Chen, Yoshihisa Kishiyama, Takahiro Asai

IEICE Trans. Commun., November, 2022

Extreme Coverage Extension in 6G: Cooperative Non-terrestrial Network Architecture Integrating Terrestrial Networks.

Yuki Hokazono, Hinata Kohara, Yoshihisa Kishiyama, Takahiro Asai

Proceedings of the IEEE Wireless Communications and Networking Conference, 2022

Evaluation of Indoor Area Improvement in the High Frequency Band Using Metasurface Lenses, FSS Technology and Relay Stations.

Jun Tsuboi, Takeshi Motegi, Osamu Kagaya, Daisuke Kitayama, Kensuke Miyachi, Tatsuki Okuyama, Satoshi Suyama, Takahiro Asai

Proceedings of the 95th IEEE Vehicular Technology Conference, 2022

Outdoor Experimental Trials on Deployments of Multiple Base Station Antennas for 28 GHz-Band Cooperated Digital Beamforming.

Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai

Proceedings of the 95th IEEE Vehicular Technology Conference, 2022

Experimental Trial aboard Shinkansen Test Train Running at 360 km/h for 5G Evolution.

Nobuhide Nonaka, Satoshi Suyama, Tatsuki Okuyama, Yuto Hama, Daisuke Kitayama, Takahiro Asai, Shoji Itoh, Anders Carlsson, Johan Furuskog, Magnus Wikström, Qiang Zhang, Kenichiro Kamohara, Fumitoshi Abe, Reiji Ishima

Proceedings of the 95th IEEE Vehicular Technology Conference, 2022

Recent Studies on Massive MIMO Technologies for 5G Evolution and 6G.

Satoshi Suyama, Tatsuki Okuyama, Nobuhide Nonaka, Takahiro Asai

Proceedings of the 2022 IEEE Radio and Wireless Symposium, 2022

Ring-type Codebook Design for Reconfigurable Intelligent Surface Near-field Beamforming.

Fan Wang, Xin Wang, Xiang Li, Xiaolin Hou, Lan Chen, Satoshi Suyama, Takahiro Asai

Proceedings of the 2022 IEEE 33rd Annual International Symposium on Personal, 2022

Unified Non-Orthogonal Waveform (uNOW) based on DFT-s-OFDM Enhancement for 5G Evolution and 6G.

Juan Liu, Xiaolin Hou, Wenjia Liu, Lan Chen, Yoshihisa Kishiyama, Takahiro Asai

Proceedings of the 2022 IEEE 33rd Annual International Symposium on Personal, 2022

THz Transport Technologies and Strategists Beyond 5G/6G Systems.

Hiroshi Okazaki, Yasunori Suzuki, Satoshi Suyama, Takahiro Asai

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

RIS-Aided Mega MIMO: Achieving Orthonormal Spatial Multiplexing with Adaptive Aperture.

Xiang Li, Xin Wang, Xiaolin Hou, Lan Chen, Satoshi Suyama, Takahiro Asai

Proceedings of the IEEE Globecom 2022 Workshops, 2022

Hash-based Fast Beam Alignment for 6G Sub-Terahertz MIMO.

Xin Wang, Xiaolin Hou, Lan Chen, Satoshi Suyama, Takahiro Asai

Proceedings of the 27th Asia Pacific Conference on Communications, 2022

2021

A Study on Extreme Wideband 6G Radio Access Technologies for Achieving 100Gbps Data Rate in Higher Frequency Bands.

Satoshi Suyama, Tatsuki Okuyama, Yoshihisa Kishiyama, Satoshi Nagata, Takahiro Asai

IEICE Trans. Commun., 2021

Base Station Cooperation Technologies Using 28GHz-Band Digital Beamforming in High-Mobility Environments.

Tatsuki Okuyama, Nobuhide Nonaka, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai

IEICE Trans. Commun., 2021

28 GHz-Band Experimental Trial Using the Shinkansen in Ultra High-Mobility Environment for 5G Evolution.

Nobuhide Nonaka, Kazushi Muraoka, Tatsuki Okuyama, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai, Yoshihiro Matsumura

IEICE Trans. Commun., 2021

Outdoor Experimental Trials of 28 GHz Band Base Station Cooperation in High-Mobility Environment of Multiple Mobile Stations.

Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai

Proceedings of the 94th IEEE Vehicular Technology Conference, 2021

Deep Learning based CSI Reconstruction with Limited Feedback for Massive MIMO Systems.

Xin Wang, Xiaolin Hou, Lan Chen, Yoshihisa Kishiyama, Takahiro Asai

Proceedings of the Thirteenth International Conference on Mobile Computing and Ubiquitous Network, 2021

Influence of Design-SNR on BER Performance under BP Decoder.

Kohei Ueda, Satoshi Suyama, Takahiro Asai, Nobuhiko Miki

Proceedings of the 2021 IEEE VTS 17th Asia Pacific Wireless Communications Symposium (APWCS), 2021

Millimeter-Wave Base Station Cooperation Technologies for High-Mobility Environments.

Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai

Proceedings of the 2021 IEEE VTS 17th Asia Pacific Wireless Communications Symposium (APWCS), 2021

Throughput Performance of HetNets using Sectorized Picocells with 3D Beamforming at 28 GHz Band in Multipath Fading Channels.

Shoko Nishimura, Satoshi Suyama, Takahiro Asai, Hiroyuki Otsuka

Proceedings of the 2021 IEEE VTS 17th Asia Pacific Wireless Communications Symposium (APWCS), 2021

Enhanced Non-Orthogonal Waveform (eNOW) for 5G Evolution and 6G.

Juan Liu, Wenjia Liu, Xiaolin Hou, Yoshihisa Kishiyama, Lan Chen, Takahiro Asai

Proceedings of the 26th IEEE Asia-Pacific Conference on Communications, 2021

2020

Transform Domain Precoding (TDP) for 5G Evolution and 6G.

Wenjia Liu, Xiaolin Hou, Yoshihisa Kishiyama, Lan Chen, Takahiro Asai

IEEE Signal Process. Lett., 2020

Outdoor Experimental Trials of Millimeter-Wave Base Station Cooperation with Digital Beamforming in High-Mobility Environments for 5G Evolution.

Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Yukihiko Okumura, Takahiro Asai

Proceedings of the 92nd IEEE Vehicular Technology Conference, 2020

Two Millimeter-Wave Base Station Cooperation Technologies in High-Mobility Environments for 5G Evolution.

Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Yukihiko Okumura, Takahiro Asai

Proceedings of the 91st IEEE Vehicular Technology Conference, 2020

28 GHz-Band Experimental Trial at 283 km/h Using the Shinkansen for 5G Evolution.

Nobuhide Nonaka, Kazushi Muraoka, Tatsuki Okuyama, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai, Yoshihiro Matsumura

Proceedings of the 91st IEEE Vehicular Technology Conference, 2020

Non-Orthogonal Waveform (NOW) for 5G Evolution and 6G.

Juan Liu, Wenjia Liu, Xiaolin Hou, Yoshihisa Kishiyama, Lan Chen, Takahiro Asai

Proceedings of the 31st IEEE Annual International Symposium on Personal, 2020

2019

RAN Slicing to Realize Resource Isolation Utilizing Ordinary Radio Resource Management for Network Slicing.

Daisuke Nojima, Yuki Katsumata, Yoshifumi Morihiro, Takahiro Asai, Akira Yamada, Shigeru Iwashina

IEICE Trans. Commun., 2019

2018

Resource Isolation in RAN Part While Utilizing Ordinary Scheduling Algorithm for Network Slicing.

Daisuke Nojima, Yuki Katsumata, Takuya Shimojo, Yoshifumi Morihiro, Takahiro Asai, Akira Yamada, Shigeru Iwashina

Proceedings of the 87th IEEE Vehicular Technology Conference, 2018

Experimental Evaluation of Starved AP Identification and Management Schemes in Mobile Cooperative WLAN System toward 5G.

Akiyoshi Inoki, Hirantha Abeysekera, Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Munehiro Matsui, Kenichi Kawamura, Yukihiko Okumura, Yasushi Takatori

Proceedings of the 87th IEEE Vehicular Technology Conference, 2018

Cell selection scheme for handover reduction based on moving direction and velocity of UEs for 5G multi-layered radio access networks.

Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura

Proceedings of the 2018 International Conference on Information Networking, 2018

2017

Radio Resource Management Based on User and Network Characteristics Considering 5G Radio Access Network in a Metropolitan Environment.

Akira Kishida, Yoshifumi Morihiro, Takahiro Asai

IEICE Trans. Commun., 2017

Throughput Improvement of Mobile Cooperative WLAN Systems with Identifying and Management of Starved APs/UEs for 5G.

Akiyoshi Inoki, Hirantha Abeysekera, Munehiro Matsui, Kenichi Kawamura, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi, Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura

IEICE Trans. Commun., 2017

2016

Starved wireless LAN device identifying scheme using beacon signals.

Akiyoshi Inoki, B. Hirantha Sithira Abeysekera, Munehiro Matsui, Takeo Ichikawa, Masato Mizoguchi, Akira Kishida, Akira Yamada, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura

Proceedings of the 19th International Symposium on Wireless Personal Multimedia Communications, 2016

2015

A Study on Moving Cell in 5G Cellular System.

Hiroto Yasuda, Akira Kishida, Jiyun Shen, Yoshifumi Morihiro, Yasufumi Morioka, Satoshi Suyama, Akira Yamada, Yukihiko Okumura, Takahiro Asai

Proceedings of the IEEE 82nd Vehicular Technology Conference, 2015

Performance of Fiber-Optic Inband Relaying against Self-Interference in Both Uplink and Downlink.

Sho Nakazawa, Kohei Iwai, Mitsutoshi Nakamura, Takahiro Kubo, Takahiro Asai, Yukihiko Okumura, Hiroyuki Otsuka

Proceedings of the IEEE 82nd Vehicular Technology Conference, 2015

5G radio access network and its requirements on mobile optical network.

Takahiro Asai

Proceedings of the 2015 International Conference on Optical Network Design and Modeling, 2015

A Development of Automatic Audit System for Written Informed Consent using Machine Learning.

Hitomi Yamada, Tadamasa Takemura, Takahiro Asai, Kazuya Okamoto, Tomohiro Kuroda, Shigeki Kuwata

Proceedings of the MEDINFO 2015: eHealth-enabled Health, 2015

2014

Performance Analysis of Fiber-Optic Inband Relaying in the Presence of Self-Interference.

Hiroyuki Otsuka, Naohiro Tanoi, Naoto Ogura, Takahiro Kubo, Takahiro Asai, Yukihiko Okumura

Proceedings of the IEEE 80th Vehicular Technology Conference, 2014

2011

Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTE-Advanced.

Kengo Yagyu, Takeshi Nakamori, Hiroyuki Ishii, Mikio Iwamura, Nobuhiko Miki, Takahiro Asai, Junichiro Hagiwara

IEICE Trans. Commun., 2011

Performance of Interference Rejection Combining Receiver to Suppress Inter-Cell Interference in LTE-Advanced Downlink.

Yusuke Ohwatari, Nobuhiko Miki, Takahiro Asai, Tetsushi Abe, Hidekazu Taoka

IEICE Trans. Commun., 2011

Study on resource allocation for VoIP traffic with subframe bundling in LTE uplink.

Masashige Shirakabe, Yoshiaki Ofuji, Akihito Hanaki, Nobuhiko Miki, Takahiro Asai, Junichiro Hagiwara

Proceedings of the 14th International Symposium on Wireless Personal Multimedia Communications, 2011

Investigation on Mobility Management for Carrier Aggregation in LTE-Advanced.

Kengo Yagyu, Takeshi Nakamori, Hiroyuki Ishii, Mikio Iwamura, Nobuhiko Miki, Takahiro Asai, Junichiro Hagiwara

Proceedings of the 74th IEEE Vehicular Technology Conference, 2011

Performance of Advanced Receiver Employing Interference Rejection Combining to Suppress Inter-Cell Interference in LTE-Advanced Downlink.

Yusuke Ohwatari, Nobuhiko Miki, Takahiro Asai, Tetsushi Abe, Hidekazu Taoka

Proceedings of the 74th IEEE Vehicular Technology Conference, 2011

2010

Optimum Weighting for Adaptive Array Antennas under Spectrum Sharing Environments.

Hiromasa Fujii, Takahiro Asai, Tomoyuki Ohya

Proceedings of the 71st IEEE Vehicular Technology Conference, 2010

2009

Joint Multi-Filter Design for Full-Duplex MU-MIMO Relaying.

Jaturong Sangiamwong, Takahiro Asai, Junichiro Hagiwara, Yukihiko Okumura, Tomoyuki Ohya

Proceedings of the 69th IEEE Vehicular Technology Conference, 2009

An adaptive soft clipping method for spectrum sharing OFDMA systems.

Toshihisa Fujiwara, Shigeru Tomisato, Masaharu Hata, Hiromasa Fujii, Takahiro Asai, Yukihiko Okumura

Proceedings of the IEEE 20th International Symposium on Personal, 2009

Capacity achievable by spectrum sharing with adaptive transmit power control: Based on field measurements.

Hiromasa Fujii, Takahiro Asai, Yukihiko Okumura, Ryoko Kawauchi, Ikuo Hiradate, Hayato Akazawa, Takayuki Sotoyama

Proceedings of the 4th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2009

2008

Cyclostationarity-Inducing Transmission Methods for Recognition among OFDM-Based Systems.

Koji Maeda, Anass Benjebbour, Takahiro Asai, Tatsuo Furuno, Tomoyuki Ohya

EURASIP J. Wirel. Commun. Netw., 2008

Nonparametric Interference Suppression Using Cyclic Wiener Filtering: Pulse Shape Design and Performance Evaluation.

Anass Benjebbour, Takahiro Asai, Hitoshi Yoshino

EURASIP J. Wirel. Commun. Netw., 2008

2007

Relaying Schemes Using Matrix Triangularization for MIMO Wireless Networks.

Hui Shi, Tetsushi Abe, Takahiro Asai, Hitoshi Yoshino

IEEE Trans. Commun., 2007

Analyses of Achievable Gains in Half Duplex MIMO Relaying Schemes Using Multiple Relay Nodes.

Hui Shi, Tetsushi Abe, Takahiro Asai, Hitoshi Yoshino

IEICE Trans. Commun., 2007

2006

Relay Techniques for MIMO Wireless Networks with Multiple Source and Destination Pairs.

Tetsushi Abe, Hui Shi, Takahiro Asai, Hitoshi Yoshino

EURASIP J. Wirel. Commun. Netw., 2006

Sequential Search Method with Different Thresholds for Clipped Power for OFDM Signal.

Jiyun Shen, Hiromasa Fujii, Takahiro Asai, Hitoshi Yoshino

Proceedings of the 63rd IEEE Vehicular Technology Conference, 2006

Pulse Shape Design for Efficient Rejection of Unknown In-Band Interference Using Cyclic Wiener Filtering.

Anass Benjebbour, Takahiro Asai, Hitoshi Yoshino

Proceedings of the 64th IEEE Vehicular Technology Conference, 2006

A "Relay Node Division Duplex" Relaying Approach for MIMO Relay Networks.

Hui Shi, Takahiro Asai, Hitoshi Yoshino

Proceedings of the IEEE 17th International Symposium on Personal, 2006

Pulse Shaping Schemes for Cyclostationarity-Exploiting Partially Coordinated Spectrum Sharing.

Anass Benjebbour, Takahiro Asai, Hitoshi Yoshino

Proceedings of the IEEE 17th International Symposium on Personal, 2006

2005

Successive multi-user detector with ordering for signals having different symbol rates.

Koji Maeda, Takahiro Asai, Hitoshi Yoshino

Proceedings of the IEEE 16th International Symposium on Personal, 2005

A relaying scheme using QR decomposition with phase control for MIMO wireless networks.

Hui Shi, Tetsushi Abe, Takahiro Asai, Hitoshi Yoshino

Proceedings of IEEE International Conference on Communications, 2005

On geolocation in ill-conditioned BS-MS layouts.

Yihong Qi, Takahiro Asai, Hitoshi Yoshino, Nobuo Nakajima

Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

2004

A practical throughput comparison of MIMO-CDMA and MIMO-OFDM.

Tetsushi Abe, Takahiro Asai, Hirohito Suda

Proceedings of the 60th IEEE Vehicular Technology Conference, 2004

2003

Experimental Evaluations on Throughput Performance of Adaptive Modulation and Channel Coding and Hybrid ARQ in HSDPA.

Takahiro Asai, Kenichi Higuchi, Mamoru Sawahashi

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003

2002

A complex baseband platform for spatial-temporal mobile radio channel simulations.

Satoshi Tsukamoto, Takuji Sasoh, Takahiro Sakaki, Toshiyuki Okamura, Shigeru Tomisato, Takahiro Asai, Tadashi Matsumoto

IEEE Trans. Veh. Technol., 2002

2001

A matched filter approximation for SC/MMSE iterative equalizers.

Hiroo Omori, Takahiro Asai, Tadashi Matsumoto

IEEE Commun. Lett., 2001

1994

Development of Surface Inspection Machine for Organic Photo Conductor(OPC).

Osamu Nakayama, Shinji Kobayashi, Katsuyuki Omura, Takahiro Asai, Mitsuhiro Tomoda, Teruki Kamada

Proceedings of IAPR Workshop on Machine Vision Applications, 1994