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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 29  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, CCS, SR, SRW
(Joint)
2016-03-02
09:25
Tokyo Tokyo Institute of Technology A Non-Linear Distortion Compensation Method for Transmission Circuits of LED Visible Light Communications
Takaaki Kumagai, Hiroaki Matsuno, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.), Tatsuo Furuno, Yasuhiro Oda (NTTDOCOMO) SRW2015-71
 [more] SRW2015-71
pp.7-10
AP, RCS, WPT, SAT
(Joint)
2015-11-04
16:30
Okinawa Okinawa Prefectural Museum & Art Museum A Study of LOS Rate Applicability for Sloping Terrain Correction Equation in Urban Path Loss Estimation Formula
Kohei Ohnishi, Kazuki Shimada, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) AP2015-123
As one of the effective path loss estimation method for small sloping area, the elevation angle correction method has be... [more] AP2015-123
pp.77-82
SRW 2015-08-24
14:40
Tokyo Shibaura Institute of Technology A compensation method of non-linear distortion in LED visible light communications
Hiroaki Matsuno, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.), Tatsuo Furuno, Yasuhiro Oda (NTT DOCOMO) SRW2015-20
In visible light communications using light emitting diodes (LEDs), non-linear distortion caused by LED non-linearity de... [more] SRW2015-20
pp.55-58
AP 2015-07-31
13:10
Hokkaido Wakkanai Sougou Bunka Center A Study of LOS Rate Definition for Sloping Terrain Correction Equation in Urban Path Loss Estimation Formula
Kohei Ohnishi, Jumpei Miki, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) AP2015-56
As one of the effective path loss estimation method for small sloping area, the elevation angle correction method is pro... [more] AP2015-56
pp.95-100
RCC, ASN, RCS, NS, SR
(Joint)
2015-07-30
10:30
Nagano JA Naganoken Bldg. [Poster Presentation] A distortion noise power allocation method for cognitive radio transmitters
Yusuke Fujisawa, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) RCC2015-29 NS2015-49 RCS2015-112 SR2015-30 ASN2015-39
This paper proposes a new distortion noise power allocation method for cognitive radio systems. The proposed method allo... [more] RCC2015-29 NS2015-49 RCS2015-112 SR2015-30 ASN2015-39
pp.69-74(RCC), pp.73-78(NS), pp.71-76(RCS), pp.87-92(SR), pp.109-114(ASN)
AP 2015-01-23
10:10
Ehime Ehime University A study of urban path loss estimation for slope terrain areas using geographical road information
Koichi Shin, Masahiro Nishi (Hiroshima City Univ.), Masaharu Hata (Okayama Univ.), Shinichi Ichitsubo (Kyushu Inst. of Tech.), Shigeru Tomisato (Okayama Univ.) AP2014-175
In recent years, service areas in cellular systems by using microcells or femtocells are widespread. In the mobile radio... [more] AP2014-175
pp.79-84
SRW 2014-12-17
16:05
Kanagawa Keio University Experimental evaluation of error vector magnitude in LTE signal transmission by visible light communication
Hiroaki Matsuno, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.), Tatsuo Furuno, Yasuhiro Oda (NTTDOCOMO) SRW2014-41
This paper experimentally evaluates broadband transmission performance of visible light communication using a transmiss... [more] SRW2014-41
pp.35-38
AP, RCS
(Joint)
2014-11-13
09:50
Yamagata Yamagata University, Yonezawa Campus A Study of Path Loss Correction Formula for a Cellular Base Station Looking down at Sloping Ground Area
Hiroyuki Takahashi, Kohei Ohnishi (Okayama Univ.), Masahiro Nishi, Koichi Shin (Hiroshima City Univ.), Shinichi Ichitsubo (Kyushu Inst. of Tech.), Shigeru Tomisato, Masaharu Hata (Okayama Univ.) AP2014-141
Residential areas in Japan are often located on a sloping ground neighboring urban district. In such area, the base stat... [more] AP2014-141
pp.73-78
SR 2014-10-30
13:00
Overseas I2R, Singapore [Poster Presentation] Non-linear distortion noise power control according to modulation schemes for cognitive radio systems
Ren Kataoka, Yusuke Fujisawa, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) SR2014-59
This paper evaluates transmission performance of a low-priority system with a non-linear distortion noise power control ... [more] SR2014-59
pp.1-6
SRW 2014-08-18
14:15
Kanagawa NICT(YRP) Transmission Performance of Adaptive Sensor Collaborative Beamforming with Frequency Offset
Masahiro Fujita, Akane Ogura, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.) SRW2014-20
 [more] SRW2014-20
pp.23-28
RCC, ASN, NS, RCS, SR
(Joint)
2014-07-31
10:50
Kyoto Kyoto Terrsa [Poster Presentation] Transmission Performance of Adaptive Sensor Collaborative Beamforming
Masahiro Fujita, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.) RCC2014-31 NS2014-51 RCS2014-103 SR2014-32 ASN2014-50
This paper evaluates transmission performance and power-saving effect of sensor collaborative beamforming by adaptive tr... [more] RCC2014-31 NS2014-51 RCS2014-103 SR2014-32 ASN2014-50
pp.49-54(RCC), pp.27-32(NS), pp.81-86(RCS), pp.69-74(SR), pp.57-62(ASN)
RCC, ASN, NS, RCS, SR
(Joint)
2014-07-31
10:50
Kyoto Kyoto Terrsa [Poster Presentation] A distortion noise power control method of OFDM transmission systems for cognitive radio
Ren Kataoka, Yusuke Fujisawa, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) RCC2014-34 NS2014-54 RCS2014-106 SR2014-35 ASN2014-53
This paper evaluates transmission performance with a non-linear distortion noise power control (DNC) method which contr... [more] RCC2014-34 NS2014-54 RCS2014-106 SR2014-35 ASN2014-53
pp.63-68(RCC), pp.41-46(NS), pp.95-100(RCS), pp.83-88(SR), pp.71-76(ASN)
SRW 2014-06-16
15:40
Kanagawa Mitsubishi Electric Iterative Frequency Offset Estimation with Singular Value Decomposition for DS-SS Wireless Sensor Networks
Satoshi Denno, Masataka Hasebe, Shigeru Tomisato, Masaharu Hata (Okayama Univ.) SRW2014-12
 [more] SRW2014-12
pp.65-70
SR 2014-01-24
15:45
Miyagi Tohoku Univ. Out-of-Band Distortion Noise of OFDM Transmission with Multiple Frequency Bands
Shouhei Masaki, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.), Tatsuo Furuno, Yasuhiro Oda (NTT DOCOMO) SR2013-93
This paper evaluates in-band and out-of-band distortion noise power caused by non-linearity of an OFDM transmitter with ... [more] SR2013-93
pp.97-102
AP 2014-01-23
14:55
Kagoshima Hozan Hall (Kagoshima Prefectural Culture Center) A study of correction method for sloping area path loss estimation based on a scale model and actual measurements
Takanori Seo, Hideaki Yukue, Takuya Kuribayashi, Takuya Tsutsumi, Shinichi Ichitsubo (Kyushu Inst. of Tech.), Masaharu Hata, Shigeru Tomisato (Okayama Univ) AP2013-156
 [more] AP2013-156
pp.129-134
SRW 2013-08-19
14:40
Tokyo Shibaura Institute of Technology Transmission performance improvement of sensor collaborative beam forming by adaptive transmission
Takuya Beppu, Masahiro Fujita, Shigeru Tomisato, Satoshi Denno, Masaharu Hata (Okayama Univ.) SRW2013-26
This paper proposes a sensor collaborative beam forming method by adaptive transmission in which beam forming and collab... [more] SRW2013-26
pp.33-36
RCS 2013-04-19
13:00
Okinawa Ishigaki City Hall A Transmission Power Control Method by Interference Power Estimation in Shared Frequency Bands
Atsushi Ikeda, Shigeru Tomisato (Okayama Univ.), Hiromasa Fujii (NTTDOCOMO), Masaharu Hata (Okayama Univ.) RCS2013-19
This paper evaluates interference power reduction effect with the proposed transmission power control (TPC) method for l... [more] RCS2013-19
pp.101-106
SR 2013-01-25
10:20
Nagano Shinshu Univ. An interference power estimation method for low-priority systems in spectrum sharing systems
Atsushi Ikeda, Shigeru Tomisato (Okayama Univ.), Hiromasa Fujii (NTTDOCOMO), Masaharu Hata (Okayama Univ.) SR2012-77
This paper proposes a new transmission power control method for low-priority systems by the accurate estimation of inter... [more] SR2012-77
pp.33-38
SAT, RCS
(Joint)
2012-08-30
11:30
Kochi Kochi City Cultura-Plaza CUL-PORT Transmission Performance Improvement by Non-Linear Distortion Noise Control in Spectrum Sharing
Seiichiro Okamoto, Shigeru Tomisato (Okayama Univ.), Hiromasa Fujii (NTTDOCOMO), Masaharu Hata (Okayama Univ.), Shunji Miura, Hidetoshi Kayama (NTTDOCOMO) RCS2012-101
On spectrum sharing systems, transmission power control (TPC) effectively works to avoid harmful inter-system interferen... [more] RCS2012-101
pp.31-36
NS 2012-04-19
15:45
Kochi Univ. of Kochi A generalization of WDS clustering algorithm extension to smart-antenna in wireless mesh networks
Shigeto Tajima (Osaka Univ.), Nobuo Funabiki, Shigeru Tomisato, Masaharu Hata (Okayama Univ.), Teruo Higashino (Osaka Univ.) NS2012-7
As a scalable inexpensive Internet-access network, we have studied the Wireless Internet-access Mesh Network (WIMNET) th... [more] NS2012-7
pp.37-42
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