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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IPSJ-CN, LOIS | 2011-05-19 14:00 |
Tokyo | NTT Musashino R&D Center | A Study on Geomagnetic Sensor Data in a Mobile Phone for an Estimation of Person Mobility Means Satoyuki Uehara, Tomonori Ito (Waseda Univ.), Hideki Yoshii (SBTM), Kazuhiro Tsurumaru, Naohisa Komatsu (Waseda Univ.)  LOIS2011-5 |
A geomagnetic sensor is becoming a standard feature for mobile phone. In this paper, we show characteristics of geomagne... [more] | LOIS2011-5 pp.33-38 |
| SR | 2011-04-21 14:20 |
Shimane | Matsue Terrsa | Investigation of Hybrid Single-Carrier and Multi-Carrier System:Evaluation of Throughput with Influence of Frequency Offset Yuji Miyake, Ikuro Kashiwamura, Kazumasa Kobayashi, Shunsuke Tomita, Kazuhiro Komatsu, Shoichi Tanifuji (Tohoku Univ.), Hiroshi Oguma (Miyagi Prefecture), Noboru Izuka (Softbank Telecom), Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) SR2011-3 |
We have investigated hybrid single-carrier (SC) and multi-carrier (MC) system. MC transmission is effective for high dat... [more] | SR2011-3 pp.13-18 |
| LOIS | 2011-03-04 10:55 |
Okinawa | Ishigaki IT business support center | A Study on the Walking States Classification Method using LPC cepstrum of Acceleration Data Hayato Shirai, Hiroki Kasahara, Tomonori Ito (Waseda Univ.), Hideki Yoshii (SBTM), Naohisa Komatsu (Waseda Univ.) LOIS2010-85 |
In this paper, we propose a method that classifies acceleration data into walking states by using LPC cepstrum.Walking s... [more] | LOIS2010-85 pp.119-124 |
| PN | 2011-02-28 16:00 |
Kagoshima | KKR Kagoshima Keitenkaku | [Invited Talk]
Perspective on future networks Shiro Ryu (SoftBank Telecom Corp.) PN2010-67 |
We had studied intensively on wavelength path network. Our results include demonstrations on wavelength-on-demand and w... [more] | PN2010-67 pp.59-64 |
| SITE | 2010-12-09 15:20 |
Kyoto | Campus plaza Kyoto | Study on Use and Protection of Mobile Phone-based Lifelog Hideki Yoshii, Masato Takahashi (SBTM), Hayato Shirai, Kazuhiro Tsurumaru, Naohisa Komatsu (Waseda) SITE2010-46 |
[more] | SITE2010-46 pp.21-26 |
| AN, USN, SR, RCS (Joint) |
2010-10-27 13:10 |
Osaka | Osaka University | Quantization Error Influence of Frequency Domain Equalizer based on MMSE Shunsuke Tomita, Yuji Miyake, Kazuhiro Komatsu (Tohoku Univ), Hiroshi Oguma (Miyagi Prefecture), Noboru Izuka (Softbank Telecom), Shoichi Tanifuji, Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ) SR2010-41 |
In next generation mobile communication systems, Single-Carrier (SC) transmission using frequency domain equalizer (FDE)... [more] | SR2010-41 pp.7-12 |
| AP, SAT (Joint) |
2010-07-21 10:50 |
Hokkaido | Kitami Inst. Tech. | Spatial Correlation Measurements for Base Station Cooperated MIMO in Outdoor Environment Yosuke Sugita, Yoshichika Ohta, Hideki Omote, Teruya Fujii (Softbank Telecom) AP2010-40 |
For the next generation mobile broadband systems such as IMT-Advanced, the CoMP (Coordinated Multi-Point joint transmiss... [more] | AP2010-40 pp.13-18 |
| CS, OCS (Joint) |
2010-01-29 14:30 |
Yamaguchi | Kaikyo Messe Shimonoseki | Application of all-optical 3R-regenerator to 80-Gbit/s RZ-DQPSK optical communication systems Shiro Ryu, Mikio Yagi (SoftBank Telecom) OCS2009-116 |
Studies on coherent optical receivers using digital signal processing are progressing rapidly. However, applicable tran... [more] | OCS2009-116 pp.93-98 |
| AP | 2010-01-21 13:45 |
Yamaguchi | Yamaguchi University | Numerical Analysis of Equivalent Model for Radio Wave Shadowing by Two Lossy Dielectric Cylinders Tatsuya Ikegami, Yusuke Sakoda, Mitsuhiro Yokota (Univ. of Miyazaki), Yoshichika Ohta, Teruya Fujii (Softbak Telecom) AP2009-163 |
Now recently, the number of customers who use cellular phones indoors is rapidly increasing. In this case, mobile termi... [more] | AP2009-163 pp.45-50 |
| RCS, SAT (Joint) |
2009-12-18 14:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Field Trial of Mobile Broadband Wireless Access in Sendai Area:
-- Feasibility Study of Uplink and Downlink Transmission with QAM -- Hiroshi Oguma (Tohoku Univ./ITIm), Noboru Izuka (Tohoku Univ.), Yasuyoshi Asano, Yoshiharu Yamazaki (Softbank Telecom), Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) RCS2009-193 |
We have carried out mobile broadband wireless access (MBWA) system field trials in an urban area of Sendai city. In the ... [more] | RCS2009-193 pp.155-160 |
| OFT, OCS, IEE-CMN, ITE-BCT (Joint) [detail] |
2009-11-27 14:35 |
Fukushima | [Invited Talk]
Proposal of fiber macrobending identification method Shiro Ryu, Mikio Yagi (SoftBank Telecom) OCS2009-98 OFT2009-61 |
Macrobending loss that occurs at a junction point of optical cables might become harmful to system operation since the l... [more] | OCS2009-98 OFT2009-61 pp.87-92(OCS), pp.41-46(OFT) |
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| RCS, AP (Joint) |
2009-11-27 14:30 |
Tokyo | Tokyo Inst. of Tech. | Arrival Angle Profile model at mobile station for Mobile Communication Hideki Omote, Yoshichika Ohta, Teruya Fujii (Softbank Telecom) AP2009-138 |
Spatial processing techniques such as Adaptive Array Antenna (AAA) and Multi-Input-Multi-Output (MIMO) have being consid... [more] | AP2009-138 pp.113-118 |
| CPSY | 2009-11-20 14:40 |
Kyoto | Campus Plaza Kyoto | Suggestion and implemention for the improvement of iSCSI remote storage access Reika Higa (Ochanomizu Univ), Kosuke Matsubara, Takao Okamawari (Softbank), Saneyasu Yamaguchi (Kogakuin Univ), Masato Oguchi (Ochanomizu Univ) CPSY2009-38 |
iSCSI should be a strong candidate for the protocol of the remote backup. However, it is known that iSCSI has a demerit... [more] |
CPSY2009-38 pp.19-24 |
| RCS | 2009-08-03 09:25 |
Miyagi | Tohoku Univ. | Investigation on Single-Carrier and Multi-Carrier Hybrid System
-- Characteristic Evaluation in the Near-Far Problem -- Ikuro Kashiwamura, Shunsuke Tomita, Kazuhiro Komatsu, Tran Hao Ngoc (Tohoku Univ.), Hiroshi Oguma (Ind Tech Inst, Miyagi Prefectural Government), Noboru Izuka (Softbank Telecom), Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) RCS2009-79 |
[more] | RCS2009-79 pp.7-12 |
| OPE, EMT, MW | 2009-07-30 08:50 |
Hokkaido | Asahikawa Civic Culture Hall | Numerical study on scattering of EM wave by human body model Yusuke Sakoda, Mitsuhiro Yokota (Univ. of Miyazaki), Yoshichika Ohta, Teruya Fujii (Softbank Telecom) MW2009-43 OPE2009-43 |
The number of customers who use cellular phones indoors is rapidly increasing. In this case, mobile terminals used in a... [more] | MW2009-43 OPE2009-43 pp.69-74 |
| AP, SAT (Joint) |
2009-07-08 17:05 |
Hokkaido | Otaru city, Hokkaido | Empirical Fading Channel Model for Static Mobile Terminals in Outdoor NLOS Environments Yoshichika Ohta, Teruya Fujii (Softbank Telecom) AP2009-57 |
Mobile terminals used in the stationary condition receive a level variation different from that found in the moving cond... [more] | AP2009-57 pp.77-81 |
| AP, SAT (Joint) |
2009-07-08 17:30 |
Hokkaido | Otaru city, Hokkaido | Analysis of Fading Characteristics for Mobile Terminals in Static Indoor Conditions Teruya Fujii, Yoshichika Ohta (Softbank Telecom) AP2009-58 |
In Cellular systems, the terminal in a fixed condition receives the level variation different from that in a moving cond... [more] | AP2009-58 pp.83-88 |
| SR | 2009-05-29 09:15 |
Niigata | Niigata Univ | Investigation on Single-Carrier and Multi-Carrier Hybrid System Ikuro Kashiwamura, Shunsuke Tomita, Kazuhiro Komatsu, Tran Hao Ngoc (Tohoku Univ.), Hiroshi Oguma (ITIm), Noboru Izuka (Softbank Telecom), Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) SR2009-8 |
[more] | SR2009-8 pp.51-55 |
| LOIS, IPSJ-CN | 2009-05-22 11:10 |
Tokyo | Waseda Univ. Faculty of Science and Engineering,OkuboCamp. 55N Bldg | A Study on analyzing GPS-based Location Data Using Segment Velocity Technique Hideki Yoshii (Softbank Telecom Corp.), Hayato Shirai, Shunichiro Butsuen, Naohisa Komatsu (Waseda Univ.) LOIS2009-7 |
[more] | LOIS2009-7 pp.109-112 |
| AP | 2009-03-09 10:30 |
Overseas | University of Macau | Fading Characteristics of Fixed Terminal in Outdoor NLOS Environment Yoshichika Ohta, Teruya Fujii (Softbank Telecom) AP2008-212 |
Mobile terminals used in a stationary condition receives a level variation different from that in a moving condition. T... [more] | AP2008-212 pp.7-12 |
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