| * | 2009 |
| 59 | EE | Kenichi Higuchi,
Hiroyuki Kawai,
Hidekazu Taoka,
Noriyuki Maeda,
Mamoru Sawahashi:
Adaptive Selection of Surviving Symbol Replica Candidates for Quasi-Maximum Likelihood Detection Using M-Algorithm with QR-Decomposition for OFDM MIMO Multiplexing.
IEICE Transactions 92-B(4): 1258-1271 (2009) |
| 58 | EE | Mamoru Sawahashi:
Foreword.
IEICE Transactions 92-B(5): 1431 (2009) |
| 57 | EE | Naoto Okubo,
Nobuhiko Miki,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Performance Comparison between Turbo Code and Rate-Compatible LDPC Code for Evolved UTRA Downlink OFDM Radio Access.
IEICE Transactions 92-B(5): 1504-1515 (2009) |
| 56 | EE | Nobuhiko Miki,
Hiroyuki Atarashi,
Kenichi Higuchi,
Mamoru Sawahashi,
Masao Nakagawa:
Experimental Evaluation of Time Diversity Effect in Hybrid ARQ Considering Space and Path Diversity for Downlink OFDM-Based Broadband Radio Access.
IEICE Transactions 92-B(5): 1516-1526 (2009) |
| 55 | EE | Nobuhiko Miki,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi,
Masao Nakagawa:
Optimum Adaptive Modulation and Channel Coding Scheme for Frequency Domain Channel-Dependent Scheduling in OFDM Based Evolved UTRA Downlink.
IEICE Transactions 92-B(5): 1527-1537 (2009) |
| 54 | EE | Takashi Isogai,
Mamoru Sawahashi,
Hidekazu Taoka,
Kenichi Higuchi:
Influence of Channel Estimation Error on MIMO Multiplexing Using Precoding in Downlink OFDM Radio Access.
IEICE Transactions 92-B(5): 1553-1562 (2009) |
| 53 | EE | Hidekazu Taoka,
Akihito Morimoto,
Hiroyuki Kawai,
Kenichi Higuchi,
Mamoru Sawahashi:
Coverage Performance of Common/Shared Control Signals Using Transmit Diversity in Evolved UTRA Downlink.
IEICE Transactions 92-B(5): 1589-1599 (2009) |
| 52 | EE | Satoshi Nagata,
Motohiro Tanno,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Cell Search Time Comparison Using Hierarchical and Non-hierarchical Synchronization Channels in OFDM Based Evolved UTRA Downlink.
IEICE Transactions 92-B(5): 1608-1618 (2009) |
| 51 | EE | Hidekazu Taoka,
Fumiaki Ito,
Keiji Takakusaki,
Mamoru Sawahashi:
Experiments on Frequency Error Compensation Using Synchronization Channel in OFDM Radio Access.
IEICE Transactions 92-B(5): 1619-1626 (2009) |
| 50 | EE | Daisuke Nishikawa,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Investigation on Optimum Control Interval for Intra-Cell Fractional TPC Using AMC for Shared Channel in Evolved UTRA Uplink.
IEICE Transactions 92-B(5): 1627-1633 (2009) |
| 49 | EE | Daisuke Nishikawa,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Investigation of Inter-Cell Transmission Power Control Using Overload Indicator for Selected Users for Evolved UTRA Uplink.
IEICE Transactions 92-B(5): 1634-1640 (2009) |
| 48 | EE | Akihito Morimoto,
Yoshihisa Kishiyama,
Motohiro Tanno,
Kenichi Higuchi,
Mamoru Sawahashi:
Performance Evaluations of MBMS Signals Using Transmit/Receiver Diversity with SFN in OFDM Based Evolved UTRA Downlink.
IEICE Transactions 92-B(5): 1649-1659 (2009) |
| 47 | EE | Satoshi Nagata,
Yoshiaki Ofuji,
Yoshihisa Kishiyama,
Nobuhiko Miki,
Kenichi Higuchi,
Mamoru Sawahashi:
Block-Wise Resource Block-Level Distributed Transmission for Shared Data Channel in OFDMA Evolved UTRA Downlink.
IEICE Transactions 92-B(5): 1660-1668 (2009) |
| 46 | EE | Hidekazu Taoka,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Comparisons between Common and Dedicated Reference Signals for MIMO Multiplexing Using Precoding in Evolved UTRA Downlink.
IEICE Transactions 92-B(5): 1669-1679 (2009) |
| 45 | EE | Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Investigations on Physical Random Access Channel Structure in Evolved UTRA Uplink.
IEICE Transactions 92-B(5): 1688-1694 (2009) |
| 44 | EE | Teruo Kawamura,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Single-Carrier Based Multiplexing of Layer 1/Layer 2 Control Signals in Evolved UTRA Uplink Using DFT-Spread OFDM.
IEICE Transactions 92-B(5): 1695-1704 (2009) |
| 43 | EE | Shohei Tsuchida,
Mamoru Sawahashi,
Hidekazu Taoka,
Kenichi Higuchi:
Field Experiments on Open-Loop Type Transmit Diversity in OFDM Radio Access.
IEICE Transactions 92-B(5): 1705-1713 (2009) |
| 42 | EE | Hidekazu Taoka,
Kenichi Higuchi,
Mamoru Sawahashi:
Field Experiments on Real-Time 1-Gbps High-Speed Packet Transmission in MIMO-OFDM Broadband Packet Radio Access.
IEICE Transactions 92-B(5): 1725-1734 (2009) |
| 41 | EE | Motohiro Tanno,
Akihito Morimoto,
Kenichi Higuchi,
Mamoru Sawahashi:
Experiments on Handover Using Combination of Bicast and Forwarding of IP Packet for Future IP-Based RANs.
IEICE Transactions 92-B(5): 1735-1742 (2009) |
| 40 | EE | Motohiro Tanno,
Yoshihisa Kishiyama,
Hidekazu Taoka,
Nobuhiko Miki,
Kenichi Higuchi,
Mamoru Sawahashi:
Layered OFDMA and Its Radio Access Techniques for LTE-Advanced.
IEICE Transactions 92-B(5): 1743-1750 (2009) |
| 2008 |
| 39 | EE | Hidekazu Taoka,
Fumiaki Ito,
Keiji Takakusaki,
Mamoru Sawahashi:
Experiments on frequency error compensation using Synchronization Channel in OFDM radio access.
PIMRC 2008: 1-5 |
| 38 | EE | Feng Lu,
Toshihiko Komine,
Toshinori Suzuki,
Mamoru Sawahashi:
CAZAC Sequence Hopping for Physical Uplink Control Channel of LTE.
VTC Fall 2008: 1-5 |
| 37 | EE | Satoshi Nagata,
Yoshihisa Kishiyama,
Motohiro Tanno,
Motohiro Higuchi,
Mamoru Sawahashi:
Investigation on Transmit Diversity for Synchronization Channel in OFDM Based Evolved UTRA Downlink.
VTC Fall 2008: 1-6 |
| 36 | EE | Motohiro Tanno,
Yoshihisa Kishiyama,
Hidekazu Taoka,
Nobuhiko Miki,
Kenichi Higuchi,
Mamoru Sawahashi:
Layered OFDMA Radio Access for IMT-Advanced.
VTC Fall 2008: 1-6 |
| 35 | EE | Hidekazu Taoka,
Ki Dai,
Kenichi Higuchi,
Mamoru Sawahashi:
Field Experiments on MIMO Multiplexing with Peak Frequency Efficiency of 50 Bit/Second/Hz Using MLD Based Signal Detection for OFDM High-Speed Packet Access.
IEEE Journal on Selected Areas in Communications 26(6): 845-856 (2008) |
| 34 | EE | Bin Xia,
Jiangzhou Wang,
Mamoru Sawahashi:
Performance analysis of MMSE detectors for high speed VSF-OFCDM.
IEEE Transactions on Communications 56(12): 2013-2019 (2008) |
| 33 | EE | Teruo Kawamura,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Orthogonal Pilot Channel Using Combination of FDMA and CDMA in Single-Carrier FDMA-Based Evolved UTRA Uplink.
IEICE Transactions 91-B(7): 2299-2309 (2008) |
| 2007 |
| 32 | EE | Satoshi Nagata,
Yoshihisa Kishiyama,
Motohiro Tanno,
Kenichi Higuchi,
Mamoru Sawahashi:
Investigations on Synchronization Channel Sequences in OFDM Based Evolved UTRA Downlink.
VTC Fall 2007: 1390-1395 |
| 31 | EE | Satoshi Nagata,
Yoshihisa Kishiyama,
Motohiro Tanno,
Kenichi Higuchi,
Mamoru Sawahashi:
Cell Search Time Comparison Using Hierarchical and Non-Hierarchical Synchronization Channels in OFDM Based Evolved UTRA Downlink.
VTC Spring 2007: 1239-1244 |
| 30 | EE | Yoshiaki Ofuji,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Group-Wised Reference Signal Allocation for Single-Carrier FDMA Radio Access in Evolved UTRA Uplink.
VTC Spring 2007: 1871-1875 |
| 29 | EE | Hidekazu Taoka,
Ki Dai,
Kenichi Higuchi,
Mamoru Sawahashi:
Field Experiments on Ultimate Frequency Efficiency Exceeding 30 Bit/Second/Hz Using MLD Signal Detection in MIMO-OFDM Broadband Packet Radio Access.
VTC Spring 2007: 2129-2134 |
| 28 | EE | Teruo Kawamura,
Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Layer 1 / Layer 2 Control Channel Structure in Single-Carrier FDMA Based Evolved UTRA Uplink.
VTC Spring 2007: 2941-2945 |
| 27 | EE | Yuanliang Huang,
Jiangzhou Wang,
Kenichi Higuchi,
Mamoru Sawahashi:
Iterative Signal Processing for Coded LSTF Architectures.
IEEE Transactions on Wireless Communications 6(10): 3712-3716 (2007) |
| 26 | EE | Motohiro Tanno,
Kenichi Higuchi,
Satoshi Nagata,
Yoshihisa Kishiyama,
Mamoru Sawahashi:
Physical Channel Structures and Cell Search Method for Scalable Bandwidth for OFDM Radio Access in Evolved UTRA Downlink.
IEICE Transactions 90-B(12): 3622-3631 (2007) |
| 2006 |
| 25 | | Seizo Onoe,
Mohsen Guizani,
Hsiao-Hwa Chen,
Mamoru Sawahashi:
Proceedings of the International Conference on Wireless Communications and Mobile Computing, IWCMC 2006, Vancouver, British Columbia, Canada, July 3-6, 2006
ACM 2006 |
| 24 | EE | Zhengang Pan,
Jingxiu Liu,
Lan Chen,
Kenichi Higuchi,
Mamoru Sawahashi:
Multi-degree Random Cyclic Delay Diversity in MISO Systems with Frequency-Domain Scheduling.
APCCAS 2006: 131-134 |
| 23 | EE | Akihito Morimoto,
Kenichi Higuchi,
Mamoru Sawahashi:
Performance Comparison Between Fast Sector Selection and Simultaneous Transmission with Soft-Combining for Intra-Node B Macro Diversity in Downlink OFDM Radio Access.
VTC Spring 2006: 157-161 |
| 22 | EE | Hidekazu Taoka,
Kenichi Higuchi,
Mamoru Sawahashi:
Field Experiments on Real-Time 1-Gbps High-Speed Packet Transmission in MIMO-OFDM Broadband Packet Radio Access.
VTC Spring 2006: 1812-1816 |
| 21 | EE | Yoshihisa Kishiyama,
Kenichi Higuchi,
Mamoru Sawahashi:
Intra-Node B Orthogonal Pilot Channel Structure for OFDM Radio Access in Evolved UTRA Downlink.
VTC Spring 2006: 201-205 |
| 20 | EE | Satoshi Nagata,
Yoshiaki Ofuji,
Kenichi Higuchi,
Mamoru Sawahashi:
Optimum Resource Block Bandwidth for Frequency Domain Channel-Dependent Scheduling in Evolved UTRA Downlink OFDM Radio Access.
VTC Spring 2006: 206-210 |
| 19 | EE | Yoshiaki Ofuji,
Kenichi Higuchi,
Mamoru Sawahashi:
Frequency Domain Channel-Dependent Scheduling Employing an Adaptive Transmission Bandwidth for Pilot Channel in Uplink Single-Carrier-FDMA Radio Access.
VTC Spring 2006: 334-338 |
| 18 | EE | Yiqing Zhou,
Jiangzhou Wang,
Mamoru Sawahashi:
Downlink transmission of broadband OFCDM systems-part III: turbo-coded.
IEEE Journal on Selected Areas in Communications 24(1): 132-140 (2006) |
| 17 | EE | Hiroyuki Kawai,
Kenichi Higuchi,
Noriyuki Maeda,
Mamoru Sawahashi:
Adaptive control of surviving symbol replica candidates in QRM-MLD for OFDM MIMO multiplexing.
IEEE Journal on Selected Areas in Communications 24(6): 1130-1140 (2006) |
| 16 | EE | Kenichi Higuchi,
Hiroyuki Kawai,
Noriyuki Maeda,
Hidekazu Taoka,
Mamoru Sawahashi:
Experiments on real-time 1-Gb/s packet transmission using MLD-based signal detection in MIMO-OFDM broadband radio access.
IEEE Journal on Selected Areas in Communications 24(6): 1141-1153 (2006) |
| 15 | EE | Yiqing Zhou,
Jiangzhou Wang,
Mamoru Sawahashi:
Downlink transmission of broadband OFCDM Systems-part II: effect of Doppler shift.
IEEE Transactions on Communications 54(6): 1097-1108 (2006) |
| 2005 |
| 14 | EE | Yiqing Zhou,
Jiangzhou Wang,
Mamoru Sawahashi:
Downlink transmission of broadband OFCDM Systems-part I: hybrid detection.
IEEE Transactions on Communications 53(4): 718-729 (2005) |
| 13 | EE | Bin Xia,
Jiangzhou Wang,
Mamoru Sawahashi:
Performance comparison of optimum and MMSE receivers with imperfect channel estimation for VSF-OFCDM systems.
IEEE Transactions on Wireless Communications 4(6): 3051-3062 (2005) |
| 12 | EE | Akihito Morimoto,
Sadayuki Abeta,
Mamoru Sawahashi:
Cell Selection Based on Shadowing Variation for Forward Link Broadband OFCDM Packet Wireless Access.
IEICE Transactions 88-B(1): 150-158 (2005) |
| 11 | EE | Motohiro Tanno,
Hiroyuki Atarashi,
Kenichi Higuchi,
Mamoru Sawahashi:
Fast Cell Search Algorithm for Overlay System with Cellular and Isolated Cells in Forward Link for OFCDM Broadband Wireless Access.
IEICE Transactions 88-B(1): 159-169 (2005) |
| 10 | EE | Yoshiaki Ofuji,
Sadayuki Abeta,
Mamoru Sawahashi:
Unified Packet Scheduling Method Considering Delay Requirement in OFCDM Forward Link Broadband Wireless Access.
IEICE Transactions 88-B(1): 170-182 (2005) |
| 9 | EE | Hiroyuki Kawai,
Kenichi Higuchi,
Noriyuki Maeda,
Mamoru Sawahashi,
Takumi Ito,
Yoshikazu Kakura,
Akihisa Ushirokawa,
Hiroyuki Seki:
Likelihood Function for QRM-MLD Suitable for Soft-Decision Turbo Decoding and Its Performance for OFCDM MIMO Multiplexing in Multipath Fading Channel.
IEICE Transactions 88-B(1): 47-57 (2005) |
| 8 | EE | Noriyuki Maeda,
Yoshihisa Kishiyama,
Hiroyuki Atarashi,
Mamoru Sawahashi:
Variable Spreading Factor-OFCDM with Two Dimensional Spreading that Prioritizes Time Domain Spreading for Forward Link Broadband Wireless Access.
IEICE Transactions 88-B(2): 487-498 (2005) |
| 7 | EE | Yoshikazu Goto,
Teruo Kawamura,
Hiroyuki Atarashi,
Mamoru Sawahashi:
Variable Spreading and Chip Repetition Factors (VSCRF)-CDMA in Reverse Link for Broadband Packet Wireless Access.
IEICE Transactions 88-B(2): 509-519 (2005) |
| 6 | EE | Satoshi Nagata,
Noriyuki Maeda,
Hiroyuki Atarashi,
Mamoru Sawahashi:
Accurate FFT Processing Window Timing Detection Based on Maximum SIR Criterion in OFCDM Wireless Access.
IEICE Transactions 88-B(2): 552-560 (2005) |
| 5 | EE | Nobuhiko Miki,
Hiroyuki Atarashi,
Sadayuki Abeta,
Mamoru Sawahashi:
Comparison of Throughput Employing Hybrid ARQ Packet Combining in Forward Link OFCDM Broadband Packet Wireless Access.
IEICE Transactions 88-B(2): 594-603 (2005) |
| 4 | EE | Yoshihisa Kishiyama,
Noriyuki Maeda,
Kenichi Higuchi,
Hiroyuki Atarashi,
Mamoru Sawahashi:
Field Experiments on Throughput Performance above 100 Mbps in Forward Link for VSF-OFCDM Broadband Wireless Access.
IEICE Transactions 88-B(2): 604-614 (2005) |
| 2004 |
| 3 | EE | Tony Q. S. Quek,
Noriyuki Maeda,
Hiroyuki Atarashi,
Mamoru Sawahashi:
Analysis on tradeoff between frequency diversity and inter-code interference considering fading correlation in forward link for VSF-OFCDM wireless access.
VTC Fall (2) 2004: 875-879 |
| 2 | EE | Yoshikazu Goto,
Teruo Kawamura,
Hiroyuki Atarashi,
Mamoru Sawahashi:
Investigations on packet error rate of variable spreading and chip repetition factors (VSCRF)-CDMA wireless access in reverse link multi-cell environment.
VTC Fall (2) 2004: 944-948 |
| 1 | EE | Motohiro Tanno,
Kenichi Higuchi,
Hiroyuki Atarashi,
Mamoru Sawahashi:
Experiments on three-step fast cell search algorithm employing common pilot channel for OFCDM broadband packet wireless access in forward link.
VTC Fall (2) 2004: 968-973 |