Koichi Ishihara

41 papers B 4C 2Misc 1Journal 23Unranked 11
YearRankTypeTitle / Venue / Authors
2022 J jnl
Centralized Control Method of Multi-Radio and Terminal Connection for 802.11 Wireless LAN Mixed Environment.
IEICE Trans. Commun.
Toshiro Nakahira, Koichi Ishihara, Motoharu Sasaki, Hirantha Abeysekera, Tomoki Murakami, Takatsune Moriyama, Yasushi Takatori
2021 J jnl
An Actual Stadium Verification of WLAN Using a Distributed Smart Antenna System (D-SAS).
IEICE Trans. Commun.
Tomoki Murakami, Koichi Ishihara, Hirantha Abeysekera, Yasushi Takatori
2021 J jnl
Distributed Detection of MIMO Spatial Multiplexed Signals in Terminal Collaborated Reception.
IEICE Trans. Commun.
Du Fengning, Hidekazu Murata, Mampei Kasai, Toshiro Nakahira, Koichi Ishihara, Motoharu Sasaki, Takatsune Moriyama
2021 J jnl
Dynamic Terminal Connection Control Using Multi-Radio Unlicensed Access for 5G Evolution and Beyond.
IEICE Trans. Commun.
Toshiro Nakahira, Tomoki Murakami, Hirantha Abeysekera, Koichi Ishihara, Motoharu Sasaki, Takatsune Moriyama, Yasushi Takatori
2018 J jnl
CSI Feedback Reduction Method for Downlink Multiuser MIMO Transmission Using Dense Distributed Antenna Selection.
IEICE Trans. Commun.
Tomoki Murakami, Koichi Ishihara, Yasushi Takatori, Masato Mizoguchi, Kentaro Nishimori
2018 J jnl
Dynamic Group-Based Antenna Selection for Uplink Multi-User MIMO in Distributed Antenna System.
IEICE Trans. Commun.
Sho Yoshida, Kentaro Nishimori, Soichi Ito, Tomoki Murakami, Koichi Ishihara, Yasushi Takatori
2018 — conf
WiSMA: strategy management architecture for wireless resource optimization.
ISPACS
Tomoki Murakami, Toshiro Nakahira, Hirantha Abeysekera, Koichi Ishihara, Takafumi Hayashi, Hiroyuki Nakamura
2017 J jnl
Cooperative Inter-cell Interference Mitigation Scheme with Downlink MU-MIMO Beamforming for Dense Wireless LAN Environment.
Wirel. Pers. Commun.
Koichi Ishihara, Tomoki Murakami, Yusuke Asai, Yasushi Takatori, Masato Mizoguchi
2016 J jnl
Wide-Range and Fast-Tracking Non-Data-Aided Frequency Offset Estimator for QAM Optical Coherent Receivers.
IEICE Trans. Commun.
Tadao Nakagawa, Takayuki Kobayashi, Koichi Ishihara, Yutaka Miyamoto
2014 B conf
AP cooperative diversity in wireless network using interference-aware channel segregation based dynamic channel assignment.
PIMRC
Martin T. H. Sirait, Yuki Matsumura, Katsuhiro Temma, Koichi Ishihara, B. A. Hirantha Sithira Abeysekera, Tomoaki Kumagai, Fumiyuki Adachi
2014 B conf
Attenuators enable inversely proportional transmission power and carrier sense threshold setting in WLANs.
PIMRC
Daichi Okuhara, Fumiya Shiotani, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura, Riichi Kudo, Koichi Ishihara
2014 J jnl
Maximum Likelihood Demodulators and Their Evaluations on Amplify-and-Forward Cooperative OFDM-Based Wireless LAN Systems.
IEICE Trans. Commun.
Hayato Fukuzono, Yusuke Asai, Riichi Kudo, Koichi Ishihara, Masato Mizoguchi
2014 — conf
Network-Controlled Channel Allocation Scheme for IEEE 802.11 Wireless LANs: Experimental and Simulation Study.
VTC Spring
B. Hirantha Sithira Abeysekera, Koichi Ishihara, Yasuhiko Inoue, Masato Mizoguchi
2013 — conf
A Master-Slave Channel Selection Scheme to Improve Fairness among Cells in IEEE 802.11 Wireless LANs.
VTC Spring
B. Hirantha Sithira Abeysekera, Koichi Ishihara, Yasuhiko Inoue, Takeo Ichikawa, Masato Mizoguchi
2013 J jnl
Development and experimental validation of downlink multiuser MIMO-OFDM in gigabit wireless LAN systems.
EURASIP J. Adv. Signal Process.
Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi
2013 J jnl
Game-Theoretic Analysis of Multibandwidth Channel Selection by Coordinated APs in WLANs.
IEICE Trans. Commun.
Kohei Hanada, Koji Yamamoto, Masahiro Morikura, Koichi Ishihara, Riichi Kudo
2013 J jnl
Implementation and Evaluation of Real-Time Distributed Zero-Forcing Beamforming for Downlink Multi-User MIMO Systems.
IEICE Trans. Commun.
Tomoki Murakami, Koichi Ishihara, Riichi Kudo, Yusuke Asai, Takeo Ichikawa, Masato Mizoguchi
2013 — conf
Interference-aware channel segregation based dynamic channel assignment using SNR-based transmit power control.
ISPACS
Yuki Matsumura, Katsuhiro Temma, Koichi Ishihara, B. Hirantha Sithira Abeysekera, Tomoaki Kumagai, Fumiyuki Adachi
2013 — conf
Selective beamforming for inter-cell interference mitigation in coordinated wireless LANs.
WPMC
Koichi Ishihara, Tomoki Murakami, Yusuke Asai, Masato Mizoguchi
2013 C conf
Transmit power control suitable for interference-aware channel segregation based dynamic channel assignment.
ICICS
Yuki Matsumura, Katsuhiro Temma, Koichi Ishihara, B. A. Hirantha Sithira Abeysekera, Tomoaki Kumagai, Fumiyuki Adachi
2012 C conf
Experimental evaluation of distributed ZF beamforming in an indoor multi-cell environment.
APCC
Tomoki Murakami, Koichi Ishihara, Riichi Kudo, Yusuke Asai, Takeo Ichikawa, Masato Mizoguchi
2012 Misc conf
Game-theoretic analysis for multibandwidth WLAN channel selection by coordinated APs.
ICCS
Kohei Hanada, Koji Yamamoto, Koichi Ishihara, Riichi Kudo, Masahiro Morikura
2012 — conf
Indoor Experiments of Real-Time MU-MIMO with CSI Feedback Scheme for Wireless LAN Systems.
VTC Spring
Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi
2012 B conf
Indoor experiments on real-time multiuser MIMO transmission in wireless LAN systems.
WCNC
Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi
2012 — conf
Successive Optimization Transmission for High and Low SNR Stations in Wireless LAN Systems.
VTC Fall
Riichi Kudo, Koichi Ishihara, Tomoki Murakami, B. Hirantha Sithira Abeysekera, Yusuke Asai, Masato Mizoguchi
2011 J jnl
A Band-Divided Receiver Prototype for Wideband Optical Signals.
IEICE Trans. Commun.
Munehiro Matsui, Riichi Kudo, Yasushi Takatori, Tadao Nakagawa, Koichi Ishihara, Masato Mizoguchi, Takayuki Kobayashi, Yutaka Miyamoto
2011 B conf
Blind frequency-dependent IQ imbalance compensation scheme using CMA for OFDM system.
PIMRC
Munehiro Matsui, Tadao Nakagawa, Riichi Kudo, Koichi Ishihara, Masato Mizoguchi
2009 J jnl
A Novel Dynamic Channel Access Scheme Using Overlap FFT Filter-Bank for Cognitive Radio.
IEICE Trans. Commun.
Motohiro Tanabe, Masahiro Umehira, Koichi Ishihara, Yasushi Takatori
2009 J jnl
Frequency-Domain Equalization for Coherent Optical Single-Carrier Transmission Systems.
IEICE Trans. Commun.
Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Akihide Sano, Yutaka Miyamoto
2009 J jnl
Multiuser Detection for Asynchronous Broadband Single-Carrier Transmission Systems.
IEEE Trans. Veh. Technol.
Koichi Ishihara, Yasushi Takatori, Shuji Kubota, Fumiyuki Adachi
2009 J jnl
Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems.
IEICE Trans. Commun.
Koichi Ishihara, Yasushi Takatori, Kentaro Nishimori, Kazuyasu Okada
2008 — conf
Multiuser Detection Method Robust against Timing Offset for OFDM Uplink Transmission.
VTC Spring
Koichi Ishihara, Yasushi Takatori, Kentaro Nishimori, Kazuyasu Okada
2007 J jnl
Frequency-Domain Multi-Stage Soft Interference Cancellation for DS-CDMA Uplink Signal Transmission.
IEICE Trans. Commun.
Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi
2007 J jnl
Iterative Channel Estimation for Frequency-Domain Equalization of DSSS Signals.
IEICE Trans. Commun.
Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi
2007 — conf
Multiuser Detection Method for Single-Carrier Transmission in Uplink Multiuser MIMO Access.
VTC Fall
Koichi Ishihara, Yasushi Takatori, Shuji Kubota
2007 J jnl
New Robust Beamforming Method for Frequency Offsets in Uplink Multiuser OFDM-MIMO.
IEICE Trans. Commun.
Yasushi Takatori, Riichi Kudo, Atsushi Ohta, Koichi Ishihara, Kentaro Nishimori, Shuji Kubota
2006 — conf
Downlink DS-CDMA Transmission with Joint MMSE Equalization and ICI Cancellation.
VTC Spring
Kazuaki Takeda, Koichi Ishihara, Fumiyuki Adachi
2006 J jnl
Frequency-Domain ICI Cancellation with MMSE Equalization for DS-CDMA Downlink.
IEICE Trans. Commun.
Kazuaki Takeda, Koichi Ishihara, Fumiyuki Adachi
2006 — conf
Frequency-domain Soft Interference Cancellation for Multicode CDMA Transmissions.
VTC Spring
Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi
2006 J jnl
Iterative Frequency-Domain Soft Interference Cancellation for Multicode DS- and MC-CDMA Transmissions and Performance Comparison.
IEICE Trans. Commun.
Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi
2005 J jnl
Pilot-Assisted Decision Feedback Channel Estimation for STTD in OFDM Mobile Radio.
IEICE Trans. Commun.
Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi