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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IN, RCS, NV (Joint) |
2018-05-10 11:15 |
Kanagawa | Keio University | Digital Transmission Analysis from Propagation Viewpoint [II]
-- BER due to ISI in MRC Diversity Reception -- Yoshio Karasawa  RCS2018-25 |
By extending the equivalent transmission-path (ETP) model, which is a scheme to evaluate BER due to ISI in SISO systems,... [more] | RCS2018-25 pp.19-24 |
| RCS, SR, SRW (Joint) |
2018-02-28 16:50 |
Kanagawa | YRP | Digital Transmission Analysis from Propagation Viewpoint Yoshio Karasawa RCS2017-341 |
In order to investigate the physical limit of digital transmission in multipath environments, in our previous reports, w... [more] | RCS2017-341 pp.137-142 |
| AP | 2017-10-19 14:00 |
Aomori | Hchinohe-Shoukou-Kaikan | On Spread Factor as a Propagation Parameter Yoshio Karasawa AP2017-95 |
In order to investigate the physical limit of digital transmission in multipath environments, in our previous reports, w... [more] | AP2017-95 pp.7-10 |
| NS, ASN, RCC, RCS, SR (Joint) |
2017-07-19 15:10 |
Hokkaido | Hokkaido Univ. | Channel Capacity in Doubly-Selective Fading Environments [III]
-- For Application to Adaptive Baseband Radio -- Yoshio Karasawa RCS2017-102 |
Under a time-invariant condition with thermal noise, the physical limit of digital transmission ability is governed by S... [more] | RCS2017-102 pp.55-60 |
| AP | 2017-02-16 16:15 |
Tochigi | Tochigiken-sougou-bunnka Center | Channel Capacity in Doubly-Selective Fading Environments [II]
-- Is propagation impairment truly irreducible in underspread WSSUS channel? -- Yoshio Karasawa AP2016-166 |
Under a time-invariant condition with thermal noise, the physical limit of digital transmission ability is governed by S... [more] | AP2016-166 pp.55-60 |
| AP, WPT (Joint) |
2017-01-19 15:20 |
Hiroshima | Hiroshima Institute of Technology | Channel Capacity in Doubly-Selective Fading Environments Yoshio Karasawa AP2016-136 |
Under a time-invariant condition with thermal noise, the physical limit of digital transmission ability is governed by S... [more] | AP2016-136 pp.39-44 |
| RCS, AP (Joint) |
2016-11-25 16:05 |
Kyoto | Kyoto International Community House | Low Computational Design Method of Multiuser MIMO System for Moving Targets Tetsuki Taniguchi (TITECH), Yoshio Karasawa, Nobuo Nakajima (The Univ. of Electro-Communications) RCS2016-206 |
Multiuser multiple input multiple output (MIMO) downlink system is suffered from performance degradation under the movem... [more] | RCS2016-206 pp.85-88 |
| CCS, NLP | 2016-06-13 15:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Keynote Address]
On Physical Limit of Wireless Digital Transmission
-- from Radiowave Propagation Perspective -- Yoshio Karasawa NLP2016-26 CCS2016-9 |
Under a time-invariant condition with thermal noise, the physical limit of digital transmission ability is governed by S... [more] | NLP2016-26 CCS2016-9 pp.35-40 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-02 09:00 |
Tokyo | Tokyo Institute of Technology | Adaptive Low Power Density Baseband Radio[II]
-- Multi-user Transmission Scheme in Propagation Environments Having Each Different Delay Spread -- Jin Nakazato, Yoshio Karasawa (UEC) SR2015-89 |
We have proposed low power density baseband radio with frequency-domain differential spreading code for realizing underl... [more] | SR2015-89 pp.1-7 |
| ITS, IE, ITE-AIT, ITE-HI, ITE-ME, ITE-MMS, ITE-CE [detail] | 2016-02-23 12:30 |
Hokkaido | Hokkaido Univ. | Performance Evaluation of MIMO Multiuser System for Moving Targets Tetsuki Taniguchi, Yoshio Karasawa, Nobuo Nakajima (UEC) ITS2015-83 IE2015-125 |
[more] | ITS2015-83 IE2015-125 pp.281-284 |
| SR | 2016-01-21 14:50 |
Nagasaki | Fukue-bunka-kaikan | [Special Talk]
Conviction to a Research on Baseband Radio Yoshio Karasawa (UEC) SR2015-75 |
We have proposed a concept of “adaptive baseband radio” as a pioneering wireless transmission system to open a vista shi... [more] | SR2015-75 pp.19-26 |
| AP | 2016-01-14 14:10 |
Tokyo | Takushoku University, Hachiouji Campus | Revisit to Friis Transmisson Formula Yoshio Karasawa (UEC) AP2015-173 |
It is well-known that “Friis transmission formula” is the most fundamental equation and the starting point for designing... [more] | AP2015-173 pp.33-36 |
| NS, RCS (Joint) |
2015-12-18 14:45 |
Ehime | Matsuyama Community Center | Performance of Multiuser MIMO Downlink System Using Zero Forcing in Time-Variant Channel Tetsuki Taniguchi, Yoshio Karasawa, Nobuo Nakajima (UEC) RCS2015-275 |
[more] | RCS2015-275 pp.187-190 |
| AP | 2015-12-10 14:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Memorial Lecture]
Radiowave Propagation: Physical Phenomenon and its Modelling
-- Revisit to pioneering works -- Yoshio Karasawa (UEC) AP2015-159 |
For revisiting pioneering works on radio propagation research in Japan with our respect, we highlight the following topi... [more] | AP2015-159 pp.27-32 |
| AP, RCS, WPT, SAT (Joint) |
2015-11-06 09:30 |
Okinawa | Okinawa Prefectural Museum & Art Museum | High Frequency Radio Environment Recognition based on Undersampling Nobuaki Kuno, Yuki Morimoto, Yoshio Karasawa (UEC) RCS2015-225 |
Recently, such as cognitive radio which is changing the available frequency band adaptively, the research of advanced wi... [more] | RCS2015-225 pp.209-214 |
| AP, RCS, WPT, SAT (Joint) |
2015-11-06 09:55 |
Okinawa | Okinawa Prefectural Museum & Art Museum | Adaptive low power density baseband radio in multi-path rich environment Jin Nakazato, Uyanga Galbadrakh, Yuki Morimoto, Yoshio Karasawa (UEC) RCS2015-226 |
In this report, we propose low power density baseband radio with frequency-domain differential spreading code for realiz... [more] | RCS2015-226 pp.215-220 |
| AP, RCS, WPT, SAT (Joint) |
2015-11-06 14:00 |
Okinawa | Okinawa Prefectural Museum & Art Museum | Short-Range Wireless Transmission Scheme Movable on a Flat Surface Takuya Yamanaka (UEC), Akihiro Kodama (KAIYODENSHIKOGYO), Kazuyuki Takasaki (TMCIT), Yoshio Karasawa (UEC) WPT2015-62 |
We have investigated short-range wireless transmission schemes without off-axial arrangement which comes significant red... [more] | WPT2015-62 pp.85-90 |
| AP | 2015-10-22 17:10 |
Yamaguchi | Yamaguchi Pref. Roufukukyo-kaikan | [Special Talk]
Radio Propagation Studies on Satellite Communications in 1980s
-- with Karasawa models -- Yoshio Karasawa (UEC) AP2015-105 |
[more] | AP2015-105 p.59 |
| RCC, ASN, RCS, NS, SR (Joint) |
2015-07-29 14:00 |
Nagano | JA Naganoken Bldg. | Subarray Construction for Low Computational Design of MIMO with Large Transmitter based on Channel Correlation Tetsuki Taniguchi, Yoshio Karasawa (UEC) RCS2015-102 |
[more] | RCS2015-102 pp.13-16 |
| RCS | 2015-06-25 16:20 |
Hokkaido | Hokkaido Univ. | FPGA Implementation of Bidirectional MIMO Fading Emulator Rikako Kotani, Yoshio Karasawa (UEC) RCS2015-78 |
For the performance evaluation of MIMO user equipment, by applying the features of the previously presented antenna-bran... [more] | RCS2015-78 pp.191-196 |
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