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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SR | 2013-05-24 14:35 |
Hiroshima | ASTER PLAZA (Hiroshima City) | Investigation of Interference Suppression Receivers using 3D Ray-Tracing for TV White Space Utilisation in Uplink Yasunori Futatsugi (NEC), Mark Beach, Joe McGeehan (Univ. of Bristol)  SR2013-15 |
This paper investigates interference suppression in receivers by a joint evaluation of a 3D ray-tracing assessment of th... [more] | SR2013-15 pp.77-82 |
| AP | 2013-01-24 10:25 |
Miyazaki | Hotel Merieges (Miyazaki City) | Evaluation of Propagation Loss Difference between the 5.8GHz and 700MHz bands in V2V Environments Ryoji Yoshida, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ) AP2012-137 |
The 700MHz band is newly allocated as the radio spectrum to the wireless communications of ITS(Intelligent Transport Sys... [more] | AP2012-137 pp.87-92 |
| DC, CPSY (Joint) |
2012-08-03 11:45 |
Tottori | Torigin Bunka Kaikan | A Discussion for Acceleration of Ray Tracing Algorithms for Lighting Simulation on Several Parallel Computing Environments Yuki Kurano, Masato Yoshimi, Mitsunori Miki, Tomoyuki Hiroyasu (Doshisha Univ.) CPSY2012-23 |
[more] | CPSY2012-23 pp.85-90 |
| SR, RCS, SRW (Joint) |
2012-03-08 09:00 |
Kanagawa | YRP | Transmission performance of 60GHz orthogonal polarization based MIMO using circular polarization waves Tatsuya Ebayashi, Toshiaki Sasame, Masahiro Umehira (Ibaraki Univ.) |
Very wide bandwidth of 7 to 9GHz is available in 60GHz band for unlicensed use on a world-wide basis, however MIMO trans... [more] | |
| AP | 2012-01-19 10:35 |
Fukuoka | Kyushu Inst. of Tech. | Ray-tracing Propagation Prediction System Applying Machine Learning Algorithms Atsushi Kunikata, Tetsuro Imai (NTT DOCOMO) AP2011-162 |
In order to improve the precision and calculation efficiency of the ray-tracing system which we developed earlier, we ad... [more] | AP2011-162 pp.91-96 |
| RCS, AN, SR, USN (Joint) |
2011-10-26 15:40 |
Tokyo | Sophia Univ. | Millimeter-wave orthogonal polarization MIMO transmission using circular polarized wave Tatsuya Ebayashi, Toshiaki Sasame, Masahiro Umehira (Ibaraki Univ.) RCS2011-150 SR2011-53 AN2011-28 USN2011-30 |
In order to achieve ultra high speed transmission over 10Gbps in next generation WLAN/WPAN (Wireless Local Area Networks... [more] | RCS2011-150 SR2011-53 AN2011-28 USN2011-30 pp.63-67(RCS), pp.65-69(SR), pp.45-49(AN), pp.45-49(USN) |
| AP, SAT (Joint) |
2011-07-14 10:30 |
Nagano | Fac. Eng., Shinshu Univ. | Evaluation of Tolerance of Eavesdropping of Wireless Secret Key Agreement Using Array Antennas by FDTD Method Akira Nishida, Takayuki Shimizu, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ.) AP2011-35 |
[more] | AP2011-35 pp.47-50 |
| AP | 2010-12-17 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Study on Path Shadowing Model for Inter-Vehicle Communications in Urban Streets Masayuki Mukohata, Tokio Taga (Kwansei Gakuin Univ.) AP2010-126 |
This paper investigates a path shadowing model due to vehicles moving between transmitter and receiver, named shadowing ... [more] | AP2010-126 pp.49-54 |
| AP | 2010-02-18 15:00 |
Tokyo | Toshiba | Estimation accuracy using ray-tracing for spatio-temporal dynamic channel properties Koshiro Kitao, Kentaro Saito, Tetsuro Imai, Yoshiki Okano, Shunji Miura (NTT DOCOMO) AP2009-195 |
Dynamic control techniques such as rank adaptation are studied for LTE (Long Term Evolution) and IMT-Advanced which are ... [more] | AP2009-195 pp.65-70 |
| RCS, SAT (Joint) |
2009-12-18 13:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Consideration on an Orthogonal-polarization based MIMO channel model using Ray-tracing technique in Millimeter-wave WPAN Takehiko Watanabe, Masahiro Umehira (Ibaraki Univ.), Hirokazu Sawada (Tohoku Univ.) RCS2009-192 |
Aiming at short distance broadband communications, millimeter-wave WPAN and WLAN using 60GHz unlicensed-band is recently... [more] | RCS2009-192 pp.149-154 |
| RCS, AP (Joint) |
2009-11-27 11:40 |
Tokyo | Tokyo Inst. of Tech. | Comparative Discussion of Spatial Multiplexing and Diversity Scheme by the Second Eigenvalue in Indoor 2x2 MIMO System Mitsuki Sagara, Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.) AP2009-134 |
There are two kinds of MIMO systems with spatial multiplexing method and diversity method. When the channel capacity is ... [more] | AP2009-134 pp.91-96 |
| AP | 2009-02-12 10:10 |
Tokyo | Tokyo University of Agriculture and Technology | Frequency Characteristics of Shadowing Loss due to a Vehicle staying at Intersection in Inter-Vehicle Communication Systems Ryo Kataoka, Tokio Taga (Kwansei Gakuin Univ.) AP2008-191 |
It is significant to analyze the effect of vehicles existing between transmitter and receiver in order to construct prop... [more] | AP2008-191 pp.13-18 |
| AP | 2009-01-21 15:50 |
Fukuoka | Fukuoka University | Propagation Analysis of Incident Waves to a Tunnel Using Aperture Field Method and Ray-tracing Method Tetsuro Imai, Kazumichi Ishikawa (NTT DOCOMO) AP2008-156 |
At the present, it is investigated to apply the ray-tracing method to analysis of propagation characteristics in tunnels... [more] | AP2008-156 pp.37-42 |
| AP | 2009-01-21 16:15 |
Fukuoka | Fukuoka University | Error correction method using neural network trained by measurement data in ray-tracing propagation prediction Junpei Mizuno, Tetsuro Imai (NTT DOCOMO) AP2008-157 |
Ray-tracing method can predict site-specifically propagation characteristics based on theory of geometrical optics with ... [more] | AP2008-157 pp.43-47 |
| AP, RCS (Joint) |
2008-11-20 13:25 |
Ishikawa | Kanazawa Institute of Technology | Optimum Conditions in Indoor MIMO Systems Using Directional Antennas at the Access Point Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.), Yuki Inoue, Keizo Cho (NTT DOCOMO, Inc.) AP2008-122 |
Large transmission capacity is obtained by radiation patterns and an orthogonal polarization in MIMO systems without inc... [more] | AP2008-122 pp.61-66 |
| AP, SAT (Joint) |
2008-07-23 09:55 |
Hokkaido | Hokkaido University | A Study on Shadowing Loss Characteristics due to a Vehicle staying at Intersection in Inter-Vehicle Communication Systems Ryo Kataoka, Tokio Taga (Kwansei Gakuin Univ.) AP2008-37 |
Analyzing the effect of vehicles around transmitting and receiving antennas is important in order to construct propagati... [more] | AP2008-37 pp.7-12 |
| AP, SAT (Joint) |
2008-07-23 10:20 |
Hokkaido | Hokkaido University | Experimental Results and Evaluation by Ray-tracing on Received Signal Level in V2V Environments Ippei Sugae, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ.), Shengwei Cai (Toyota ITC), Kunihiko Sasaki (DENSO), Tetsuo Horimatsu (Fujitsu) AP2008-38 |
In this paper, experimental results on the propagation loss in V2V communications (Vehicle to vehicle communications) is... [more] | AP2008-38 pp.13-16 |
| AP | 2008-03-13 10:20 |
Aichi | Nanzan Univ. | Simplified Prediction Scheme of Propagation Loss over Non Line-of-Sight Intersections in V2V Communications Toshihiro Tango, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ.) AP2007-173 |
In this paper, a simplified prediction scheme of averaged propagation loss over non line-of-sight intersections in V2V c... [more] | AP2007-173 pp.1-6 |
| AP | 2008-01-24 09:30 |
Okinawa | Tyeruru.(Naha) | Antenna Configuration Using Directivity and Orthogonal Polarization in the Indoor MIMO Systems Assuming the Wireless LAN Daisuke Uchida, Taihei Michihata, Hiroyuki Arai (Yokohama National Univ.), Yuki Inoue, Keizo Cho (NTT DoCoMo) AP2007-131 |
This report shows that the characteristic of channel capacity is improved when directional antennas and orthogonal polar... [more] | AP2007-131 pp.51-56 |
| AP | 2008-01-24 11:20 |
Okinawa | Tyeruru.(Naha) | Ray-tracing System for predicting propagation characteristics on World Wide Web Junpei Mizuno, Tetsuro Imai (NTT DoCoMo Inc.) AP2007-136 |
Predicting propagation characteristics by Ray-tracing method needs detail landform data and structure data and high-spec... [more] | AP2007-136 pp.81-86 |
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