Faculty Profiles - KUROSAKI Masayuki

Conference Prsentations (Oral, Poster) -

Division display21 - 40 of about 225／ All the affair displays >>

ヌルビームフォーミングを用いた全二重無線通信システムに関する一検討とその実装

川野真裕, 長尾勇平, ラナンテレオナルド, 黒崎正行, 尾知博

電子情報通信学会ソサイエティ大会電子情報通信学会

マルチBSS環境におけるIEEE802.11CSMA/CA性能解析モデルに関する一検討

梶原隆平, Leonardo Jr. Lanante, 長尾勇平, 黒崎正行, 尾知博

2020年電子情報通信学会総合大会電子情報通信学会

小型SDRボードを用いたロボット制御のための産業用無線LANシステムの実装

豊福瑞, 伊藤義基, Tran Thi Thao Nguyen, 長尾勇平, 黒崎正行, 尾知博

2020年電子情報通信学会総合大会電子情報通信学会

産業用無線LANシステムを用いたEtherCATのトンネリングに関する研究

伊藤義基, 豊福瑞, Tran Thi Thao Nguyen, 長尾勇平, 黒崎正行, 尾知博

2020年電子情報通信学会総合大会電子情報通信学会

Image Tampering Detection and Self-Recovery by Using Robust Digital Watermark against JPEG Compression

Ohara S., Kurosaki M., Ochi H.

IEICE Technical Report The Institute of Electronics, Information and Communication Engineers

Event date： 2020.03.05 - 2020.03.06 Language：Japanese

Recently, with the tremendous diffuser of smartphones, the SNS users rate has increased to 74.7 %
in 2018. Users can easily send and receive the various images via the Internet such as SNS. In addition, image
processing technology has been developed, making it possible to easily process images. On the other hand, with
the development of image processing technology, images are often tampered by malicious users to be different from
the facts and spread on SNS, which is a social problem. Digital watermark, which is a method to solve such the problems, has attracted attention. This method embeds a digital watermark directly in the image, and the receiver side extracts the digital watermark from the tampered image, which is used as a method of tamper detection and recovery of the tampered image. However, this method does not support the image format JPEG (Joint Photographic Experts Group) often used in SNS, and converting an image which is embedded digital watermark to JPEG breaks the digital watermark and does not work well. In this report, we propose the method of tampering detection and self-recovery by using robust digital watermark against JPEG compression, and evaluate its performance by software simulation.

High-accuracy Timing Offset Estimation Method Between Devices by Software Processing

Nagano K., Kusunoki I., Nagao Y., Lanante L., Kurosaki M., Ochi H.

IEICE Technical Report The Institute of Electronics, Information and Communication Engineers

Event date： 2020.03.04 - 2020.03.06 Language：Japanese

Highly accurate timestamps of device's local time is required in IoT sensor networks.
This is because the timestamp information is important for measured data analysis.
However, the conventional high-precision time synchronization method generally requires special hardware and hence difficult to implement in small IoT devices.
In this paper, we present a high-accuracy clock offset estimation method that achieves a maximum error of 50 ns by software processing using only ToA(Time of Arrival) information obtained by each node in a wireless LAN network.

Studies on Precoding Accuracy for Video Streaming over MIMO Systems

Yoshikawa Y., Tashiro K., Kurosaki M., Ochi H.

The 2019 IEICE Student Activity Committee Kyushu Section Conference Kyushu Section, IEICE

産業用無線LANシステムにおけるリアルタイム制御プロトコルの実装

伊藤義基, 豊福瑞, Tran Thi Thao Nguyen, 長尾勇平, 黒崎正行, 尾知博

2019年度（第27回）電子情報通信会九州支部学生会講演会電子情報通信会九州支部

Accuracy Verification of Signal Reception Time Determination in Wi-Fi System

Kusunoki I., Nagano K., Nana Sutisna, Nagao Y., Lanante L., Kurosaki M., Ochi H.

IEICE Technical Report The Institute of Electronics, Information and Communication Engineers

Event date： 2019.06.13 - 2019.06.14 Language：Japanese

In this paper, we propose a system that verifies and corrects the accuracy of symbol timing synchronization processing to determine reception time in Wi-Fi system.
Time-of-flight (ToF) -based Wi-Fi indoor mobile position estimation uses radio time-of-flight data between the mobile terminal targeted for position estimation and a fixed Wi-Fi receiver (anchor) Using. However, it is known that the accuracy of radio reception time data in existing Wi-Fi receivers may be deteriorated due to the influence of multipath environment.
Therefore, we consider a system that corrects the accuracy of symbol timing synchronization processing that determines the reception time of radio waves in the Wi-Fi system. This will improve the estimation accuracy of Wi-Fi indoor mobile position estimation.

重畳符号化を用いたMIMOシステムによる無線動画像伝送

田代晃司

電子情報通信学会総合大会電子情報通信学会

過負荷マルチユーザMIMOシステムにおける動画像伝送の高画質化のための一検討

吉川祐太

電子情報通信学会総合大会電子情報通信学会

非同期型Wi-Fi位置推定システムの提案とFPGA実装

楠湧夢

革新的無線通信技術に関する横断的研究会 (MIKA2018) 電子情報通信学会　通信ソサイエティ　革新的無線通信技術に関する横断型研究会

過負荷マルチユーザMIMO システムを用いた無線動画像伝送

吉川祐太

電子情報通信学会九州支部学生講演会電子情報通信学会九州支部学生会

ディープラーニングのFPGA実装に関する研究

和田健佑, 下川ゆふ

電子情報通信学会九州支部学生講演会電子情報通信学会九州支部学生会

MU-MIMOチャネルエミュレータの性能評価

久保恭介

電子情報通信学会総合大会電子情報通信学会

産業用無線LANシステムにおけるFPGA実装検証

釣田真琴

電子情報通信学会総合大会電子情報通信学会

High Accuracy ToF Measurement for IEEE 802.11ax Based Localization -- Experimental Validation Using Software Defined Radio --

IEICE Technical Report

色特徴量を用いた人物検出のための画像処理システムの実装

久保恭介, 山本麻由, 黒崎正行, 尾知博

電子情報通信学会九州支部学生講演会電子情報通信学会九州支部学生会

スケーラブル情報ハインディングにおける埋め込み手法に関する一検討

福田航平

電子情報通信学会九州支部学生講演会電子情報通信学会九州支部学生会

Robust Video Transmission Scheme fpr H.264 Streams over MIMO Channels

Nuraisyiah Ismail

IEICE Kyushu Section Gakuseikai IEICE Kyushu Section Gakuseikai

　 PREV - NEXT 　

<KUROSAKI Masayuki>

Conference Prsentations (Oral, Poster) -