Faculty Profiles - TOMISATO Shigeru

Papers - TOMISATO Shigeru

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SINR Improvement by Adaptive Bandwidth Control in Multi-Band IoT Systems with Spectrum Sharing Reviewed

Kanta Haino, Shigeru Tomisato, Kazuhiro Uehara

2021 20th International Symposium on Communications and Information Technologies (ISCIT2021) 2021.10

A Compensation Method for Both Amplitude Deviation of Frequency Response and Non-Linear Distortion in LED Visible Light Wireless Communications Reviewed

Takeru Fukuyama, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara

2021 20th International Symposium on Communications and Information Technologies (ISCIT2021) 114 - 117 2021.10

Coverage Improvement by Adaptive Bandwidth Control Corresponding to Radio Channel Fluctuation in Multi-Band IoT Systems with Spectrum Sharing Systems Reviewed

Wataru Okada, Shigeru Tomisato, Kazuhiro Uehara

2021 20th International Symposium on Communications and Information Technologies (ISCIT2021) 2021.10

Examination of signal separation/demodulation method of multi-value modulation sensor terminal signal using STFT in storage batch signal processing Reviewed

Toru Nishiyama, Takuyuki Hirakawa, Syo Nakaie, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara

IEICE Communications Express 10 ( 8 ) 458 - 462 2021.8

A new scheme of automatic modulation classification using Convolutional Neural Network with constellation diagram Reviewed

Yutao Liu, Toru Nishiyama, Shigeru Tomisato, Kazuhiro Uehara

IEICE Communications Express 10 ( 8 ) 492 - 497 2021.8

Inter-system interference reduction of adaptive bandwidth control for multi-band wireless transmission Reviewed

Naoto Takamatsu, Shigeru Tomisato, Kazuhiro Uehara, Satoru Shimizu, Yoshinori Suzuki

IEICE Communications Express 10 ( 6 ) 337 - 342 2021.6

A Bandwidth Control Method by Adaptive Multi-Band Selection for Spectrum Sharing Wireless Communication Systems Reviewed

Naoto Takamatsu, Shigeru Tomisato, Kazuhiro Uehara, Satoru Shimizu, and Yoshinori Suzuki

2020 International Conference on Emerging Technologies for Communications (ICETC 2020) 2020.12

Transmission performance of highly efficient modulation by collaborative linearization processing in both transmitter and receiver for LED visible light communications Reviewed

2020 International Conference on Emerging Technologies for Communications (ICETC 2020) 2020.12

Transmission performance of a digital pre-distortion method followed by adaptive compander for LED visible light communications Reviewed

Saroma Era, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara

2020 International Conference on Emerging Technologies for Communications (ICETC 2020) 2020.12

A study on window function and window width of STFT in collision signal separation and demodulation method using Stored batch signal processing Reviewed

Toru Nishiyama, Takuyuki Hirakawa, Syo Nakaie, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara

2020 International Conference on Emerging Technologies for Communications (ICETC 2020) 2020.12

A study on automatic modulation classification of digital modulation signals using Convolutional Neural Network Reviewed

Yutao Liu, Toru Nishiyama, Shigeru Tomisato, Kazuhiro Uehara

2020 International Conference on Emerging Technologies for Communications (ICETC 2020) 2020.12

Adaptive bandwidth control for multi-band OFDM transmission with spectrum sharing Reviewed

Yoshiki Inuzuka, Shigeru Tomisato, Kazuhiro Uehara, Satoru Shimizu, Yoshinori Suzuki

IEICE Communications Express 9 ( 5 ) 131 - 135 2020.5

LED Lighting Arrangement for Spatially Parallel Signal Transmission in Visible Light Communication. Reviewed

Yusuke Kamei, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara

IEEE 8th Global Conference on Consumer Electronics(GCCE) 1123 - 1126 2019.10

Optical Radio Channel Propagation in Wireless Communication Systems with LEDs Reviewed

Satoshi Denno, Shunsuke Fujitaka, Yafei Hou, Shigeru Tomisato, Kazuhiro Uehara

2019 12TH GLOBAL SYMPOSIUM ON MILLIMETER WAVES (GSMM 2019) 50 - 52 2019.5

Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Publisher：IEEE

This paper analyzes optical radio channel propagation characteristics by means of experimental measurement. The channel with an LED and a PD provided by the outstanding technologies co. ltd., is defined as an optical radio channel, and its delay profile is measured by NI-USRPs. As a result, small delayed paths are detected due to the LED or the PD in use. The delay profile is evaluated in a system with single carrier modulation where the frequency domain equalization is applied, in terms of the bit error rate (BER). The transmission performance is about 2dB degraded due to the small delayed paths.

Transmission performance improvement by non-linear distortion noise power control in multi-band systems Reviewed

Shigeru Tomisato, Jumpei Onji, Kazuhiro Uehara

Special Issue: Wireless and Mobile Networks and Their Applications, International Journal of Computer and Software Engineering (IJCSE) 4 ( 143 ) 2019.3

Prediction of Microcell Propagation Loss in Line of Sight for Sloped Area

Record of Joint Conference of Electrical and Electronics Engineers in Kyushu 2014 260 - 260 2014

A Study of Correction Method for Urban Path Loss Estimation Formula Applying to Sloping Areas

Record of Joint Conference of Electrical and Electronics Engineers in Kyushu 2014 257 - 257 2014

Transmit Beamforming with DOA Estimation in Fast Fading Channels with AOA Spread Reviewed

Satoshi Denno, Shigeru Tomisato, Masaharu Hata, Tatsuo Furuno, Yasuhiro Oda

2014 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP) 25 - 26 2014

Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Publisher：IEEE

This paper shows performance of a transmit beamforming with DOA estimation in fast time selective fading channels with angle of arrival spread. The performance is confirmed by simulation where carrier frequency is assumed to be 20GHz and a linear array antenna is introduced. The unitary ESPRIT is applied for the DOA estimation. The beamfoming gain can be kept high as far as the maximum Doppler frequency f(D) is less than 10(4) in the fading channel.

Study on Microcell Propagation Loss for Slope Terrain Area Using a Scale Model

Record of Joint Conference of Electrical and Electronics Engineers in Kyushu 2013 308 - 308 2013

A Study of Path Loss Characteristic of Cellular Base Station Looking up at Sloping Area

Record of Joint Conference of Electrical and Electronics Engineers in Kyushu 2013 307 - 307 2013

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