IEICE Trans

Riichi KUDO

User Equipment Centric Downlink Access in Unlicensed Spectrum for Heterogeneous Mobile Network Riichi KUDO B. A. Hirantha Sithira ABEYSEKERA Yusuke ASAI Takeo ICHIKAWA Yasushi TAKATORI Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2015/10/01 Vol. E98-B No. 10 pp. 1969-1977 Type of Manuscript: Special Section PAPER (Special Section on 5G Radio Access Networks―Part II: Multi-RAT Heterogeneous Networks and Smart Radio Technologies) Category: Keyword: heterogeneous network, CSMA/CA, unlicensed spectrum, wireless LAN, RXOP, hidden terminal problem,
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Weighted-Combining Calibration on Multiuser MIMO Systems with Implicit Feedback Hayato FUKUZONO Tomoki MURAKAMI Riichi KUDO Yasushi TAKATORI Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2015/04/01 Vol. E98-B No. 4 pp. 701-713 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: multiple-input multiple-output (MIMO), channel reciprocity, implicit feedback, calibration, minimum mean square error (MMSE),
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Maximum Likelihood Demodulators and Their Evaluations on Amplify-and-Forward Cooperative OFDM-Based Wireless LAN Systems Hayato FUKUZONO Yusuke ASAI Riichi KUDO Koichi ISHIHARA Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2014/11/01 Vol. E97-B No. 11 pp. 2435-2448 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: cooperative communication, orthogonal frequency division multiplexing (OFDM), wireless local area network (LAN), amplify-and-forward (AF) mode, Golden code, Alamouti code, log likelihood ratio,
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Implementation and Evaluation of Real-Time Distributed Zero-Forcing Beamforming for Downlink Multi-User MIMO Systems Tomoki MURAKAMI Koichi ISHIHARA Riichi KUDO Yusuke ASAI Takeo ICHIKAWA Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/10/01 Vol. E96-B No. 10 pp. 2521-2529 Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2012) Category: Wireless Communication Technologies Keyword: multiuser MIMO, inter-cell interference, distributed system, wireless LAN system,
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Game-Theoretic Analysis of Multibandwidth Channel Selection by Coordinated APs in WLANs Kohei HANADA Koji YAMAMOTO Masahiro MORIKURA Koichi ISHIHARA Riichi KUDO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/06/01 Vol. E96-B No. 6 pp. 1277-1287 Type of Manuscript: Special Section PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems) Category: Keyword: wireless LAN, multibandwidth, channel selection, IEEE 802.11ac, overlapping BSS, game theory,
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Performance Evaluation of Interference-Aware Multi-Cell Beamforming for an Overlapping Cells Environment Tomoki MURAKAMI Riichi KUDO Takeo ICHIKAWA Naoki HONMA Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/06/01 Vol. E96-B No. 6 pp. 1492-1501 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: MIMO, multi-cell beamforming, inter-cell interference (ICI), WLAN, decentralized control scheme,
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A Band-Divided Receiver Prototype for Wideband Optical Signals Munehiro MATSUI Riichi KUDO Yasushi TAKATORI Tadao NAKAGAWA Koichi ISHIHARA Masato MIZOGUCHI Takayuki KOBAYASHI Yutaka MIYAMOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2011/07/01 Vol. E94-B No. 7 pp. 1801-1808 Type of Manuscript: Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network) Category: Keyword: coherent receiver, analog to digital converter, OFDM, real-time, heterodyne receiver,
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A Stochastic Approach to Design MIMO Antenna with Parasitic Elements Based on Propagation Characteristics Naoki HONMA Kentaro NISHIMORI Riichi KUDO Yasushi TAKATORI Takefumi HIRAGURI Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/10/01 Vol. E93-B No. 10 pp. 2578-2585 Type of Manuscript: Special Section PAPER (Special Section on Advanced Technologies in Antennas and Propagation in Conjunction with Main Topics of ISAP2009) Category: Antennas Keyword: MIMO, parasitic antennas, mobile antennas, Yagi-Uda arrays,
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1616 MIMO Testbed for MU-MIMO Downlink Transmission Kentaro NISHIMORI Riichi KUDO Naoki HONMA Yasushi TAKATORI Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/02/01 Vol. E93-B No. 2 pp. 345-352 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: multiuser MIMO, adaptive modulation scheme, OFDM, eigenvalue, bit interleaver,
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Frequency-Domain Equalization for Coherent Optical Single-Carrier Transmission Systems Koichi ISHIHARA Takayuki KOBAYASHI Riichi KUDO Yasushi TAKATORI Akihide SANO Yutaka MIYAMOTO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/12/01 Vol. E92-B No. 12 pp. 3736-3743 Type of Manuscript: PAPER Category: Fiber-Optic Transmission for Communications Keyword: frequency-domain equalization (FDE), coherent optical transmission, chromatic dispersion (CD), polarization mode dispersion (PMD), digital signal processing (DSP),
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A New User Selection Measure in Block Diagonalization Algorithm for Multiuser MIMO Systems Riichi KUDO Yasushi TAKATORI Kentaro NISHIMORI Atsushi OHTA Shuji KUBOTA Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/10/01 Vol. E92-B No. 10 pp. 3206-3218 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: multiuser MIMO, user selection, block diagonalization, channel capacity,
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Antenna Selection Method for Terminal Antennas Employing Orthogonal Polarizations and Patterns in Outdoor Multiuser MIMO System Naoki HONMA Riichi KUDO Kentaro NISHIMORI Yasushi TAKATORI Atsushi OHTA Shuji KUBOTA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/06/01 Vol. E91-B No. 6 pp. 1752-1759 Type of Manuscript: Special Section PAPER (Special Section on 2007 International Symposium on Antennas and Propagation) Category: Smart Antennas & MIMO Keyword: MIMO, multiuser, urban environment, polarization, pattern, antenna selection,
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New Downlink Beamforming Method for Cooperative Multiple Access Point Systems Riichi KUDO Yasushi TAKATORI Kentaro NISHIMORI Atsushi OHTA Shuji KUBOTA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/09/01 Vol. E90-B No. 9 pp. 2303-2311 Type of Manuscript: Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation) Category: Smart Antennas Keyword: MIMO, downlink, beamforming, multiple access point system,
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New Robust Beamforming Method for Frequency Offsets in Uplink Multiuser OFDM-MIMO Yasushi TAKATORI Riichi KUDO Atsushi OHTA Koichi ISHIHARA Kentaro NISHIMORI Shuji KUBOTA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2007/09/01 Vol. E90-B No. 9 pp. 2312-2320 Type of Manuscript: Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation) Category: Smart Antennas Keyword: multiuser MIMO, uplink, beamforming, frequency offset,
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Novel Downlink Beamforming Method Using Selective STBC with Common Eigenvectors for MIMO-OFDM Systems Riichi KUDO Yasushi TAKATORI Kentaro NISHIMORI Koichi TSUNEKAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2006/08/01 Vol. E89-B No. 8 pp. 2170-2179 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: MIMO, eigenvector, OFDM, achievable spectrum efficiency, STBC, beamforming, maximum Doppler frequency, feedback overhead,
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Frequency Correlation Characteristics Due to Antenna Configurations in Broadband MIMO Transmission Kentaro NISHIMORI Nobuhiko TACHIKAWA Yasushi TAKATORI Riichi KUDO Koichi TSUNEKAWA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/06/01 Vol. E88-B No. 6 pp. 2438-2445 Type of Manuscript: Special Section PAPER (Special Section on 2004 International Symposium on Antennas and Propagation) Category: Keyword: MIMO, frequency correlation, antenna arrangement, OFDM, delay signals, angular spread,
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