Latest updates from the Mobile Computing Lab at The University of Osakahttps://mc.net.ist.osaka-u.ac.jp/en-ushttps://mc.net.ist.osaka-u.ac.jp/en/activity/hus-ist-research-exchange-2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/hus-ist-research-exchange-2026/Professor Hirozumi Yamaguchi will give a presentation at the 6th Research Exchange Meeting of the Graduate Schools of Human Sciences and Information Science and TechnologyWed, 17 Jun 2026 15:00:00 GMTEvents & ProjectsOthershttps://mc.net.ist.osaka-u.ac.jp/en/activity/asean-nexus-ecr-conclave-2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/asean-nexus-ecr-conclave-2026/Participation in the 2nd ASEAN-NEXUS Early Career Researchers (ECRs) Conclave, a seminar for early-career researchers under the Japan-ASEAN Science, Technology and Innovation Platform Program (NEXUS)Tue, 02 Jun 2026 15:00:00 GMTPublications & TalksOthershttps://mc.net.ist.osaka-u.ac.jp/en/activity/prof_mario_nascimento_talk/https://mc.net.ist.osaka-u.ac.jp/en/activity/prof_mario_nascimento_talk/Prof. Mario A. Nascimento gave a special lecture in the Mobile Computing class.Tue, 26 May 2026 15:00:00 GMTOthershttps://mc.net.ist.osaka-u.ac.jp/en/activity/hanyang-university-research-exchange-2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/hanyang-university-research-exchange-2026/We hosted a research exchange meeting with Professor YoungTae Noh’s and Kyungsik Han's group from Hanyang University, Korea.Mon, 18 May 2026 15:00:00 GMTOthershttps://mc.net.ist.osaka-u.ac.jp/en/activity/dps-mbl-its-2026-05/https://mc.net.ist.osaka-u.ac.jp/en/activity/dps-mbl-its-2026-05/A joint workshop involving DPS, MBL, ITS, and SeMI will feature six research presentations.Tue, 12 May 2026 15:00:00 GMTPublications & TalksAwardshttps://mc.net.ist.osaka-u.ac.jp/en/activity/bbq2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/bbq2026/We held a welcome BBQ party for incoming students in 2026.Sat, 09 May 2026 15:00:00 GMTLab Lifehttps://mc.net.ist.osaka-u.ac.jp/en/activity/open-lab-2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/open-lab-2026/Lab tour held for 3rd and 4th year students of the Department of Information Science.Wed, 08 Apr 2026 15:00:00 GMTLab Lifehttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/Hamada Rizk, Hirozumi YamaguchiWed, 01 Apr 2026 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/Hamada Rizk, Hirozumi Yamaguchi, Sumio MoriokaWed, 01 Apr 2026 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/Ren Ozeki, Hamada Rizk, Hirozumi YamaguchiWed, 01 Apr 2026 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/Mohab Bahnassy, Omar Saqr, Hamada Rizk, Moustafa YoussefWed, 01 Apr 2026 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/矢野健太郎, 篠原篤将, 坂本哲也, 米倉晴紀, 山口弘純Wed, 01 Apr 2026 00:00:00 GMTdomestic_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/辻凌平, 内山彰, リズクハマダ, 山口弘純, 森岡澄夫, 稲川貴大Wed, 01 Apr 2026 00:00:00 GMTdomestic_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/Ying Chieh Wang, Tatsuya Amano，Hirozumi Yamaguchi Wed, 01 Apr 2026 00:00:00 GMTdomestic_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/中尾陸，廣森聡仁，山口弘純Wed, 01 Apr 2026 00:00:00 GMTdomestic_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/小関廉，Hamada Rizk，山口弘純Wed, 01 Apr 2026 00:00:00 GMTdomestic_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/米倉晴紀, 山口弘純Wed, 01 Apr 2026 00:00:00 GMTdomestic_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/Heetae Jin, Hyuckjin Choi, Dong Chan Park, Jaehan Joo, Sumin JeongWed, 01 Apr 2026 00:00:00 GMTjournal_papershttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2026/The growing demand for ride-hailing services has led to an increasing need for accurate taxi demand prediction. Existing systems are limited to specific regions, lacking generalizability to unseen areas. This paper presents a novel taxi demand prediction system, harnessing the strengths of multiview graph neural networks to capture spatial-temporal dependencies and patterns in urban environments. Additionally, the proposed system CROSS-Net employs a spatially transferable approach, enabling it to train a model that can be deployed to previously unseen regions. To achieve this, the framework incorporates the power of a Variational Autoencoder to disentangle the input features into region-specific and region-agnostic components. The region-agnostic features facilitate cross-region taxi demand predictions, allowing the model to generalize well across different urban areas. Experimental results demonstrate the effectiveness of CROSS-Net in accurately forecasting taxi demand, even in previously unobserved regions, thus showcasing its potential for optimizing taxi services and improving transportation efficiency on a broader scale.Wed, 01 Apr 2026 00:00:00 GMTjournal_papershttps://mc.net.ist.osaka-u.ac.jp/en/activity/graduation2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/graduation2026/Congratulations on your graduation!Wed, 25 Mar 2026 00:00:00 GMTLab LifeAwardshttps://mc.net.ist.osaka-u.ac.jp/en/activity/percom2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/percom2026/6 research presentations (1 main track, 5 workshops), 2 workshop keynotes, and a panel appearance at IEEE PerCom 2026Fri, 20 Mar 2026 00:00:00 GMTPublications & Talkshttps://mc.net.ist.osaka-u.ac.jp/en/activity/ieice-general-2026-03/https://mc.net.ist.osaka-u.ac.jp/en/activity/ieice-general-2026-03/Associate Professor Uchiyama and Assistant Professor Jin gave presentations at the 2026 IEICE General Conference held at Kyushu Sangyo University, Fukuoka.Fri, 13 Mar 2026 00:00:00 GMTPublications & Talkshttps://mc.net.ist.osaka-u.ac.jp/en/activity/mscs2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/mscs2026/A research presentation on formation flight control was given at an organized session on ROS at SICE MSCS 2026, held in Toyama.Thu, 05 Mar 2026 15:00:00 GMTPublications & Talkshttps://mc.net.ist.osaka-u.ac.jp/en/activity/its-research-forum_2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/its-research-forum_2026/M1 Yano and M2 Maruyama gave two poster presentations at IPSJ SIG-ITS Research Forum 2026 held at Taisho University, Tokyo.Sun, 01 Mar 2026 15:00:00 GMTPublications & TalksAwardshttps://mc.net.ist.osaka-u.ac.jp/en/activity/mbl-ubi_2026-03/https://mc.net.ist.osaka-u.ac.jp/en/activity/mbl-ubi_2026-03/Ouyang and Prof. Yamaguchi gave two oral presentations at the 118th MBL / 89th UBI / SeMI Joint Workshop held at Satellite Campus Hiroshima.Sat, 28 Feb 2026 15:00:00 GMTPublications & Talkshttps://mc.net.ist.osaka-u.ac.jp/en/activity/master-thesis-presentation-2025/https://mc.net.ist.osaka-u.ac.jp/en/activity/master-thesis-presentation-2025/The 2025 academic year's master's thesis presentations were held on February 9, and the undergraduate thesis presentations were held on February 16.Mon, 16 Feb 2026 06:00:00 GMTLab Lifehttps://mc.net.ist.osaka-u.ac.jp/en/activity/crest_kobe2026_suma_ward_evacuation/https://mc.net.ist.osaka-u.ac.jp/en/activity/crest_kobe2026_suma_ward_evacuation/Conducted a Pilot Experiment on AI-Based Evacuation Guidance Drill Using a Smartphone App and TV Integration in Suma Ward, Kobe.Sat, 14 Feb 2026 15:00:00 GMTMediaEvents & Projectshttps://mc.net.ist.osaka-u.ac.jp/en/activity/scahpcasia2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/scahpcasia2026/Three poster presentations were given at SCA/HPCAsia 2026 held at Osaka International Convention Center.Mon, 26 Jan 2026 00:00:00 GMTPublications & Talkshttps://mc.net.ist.osaka-u.ac.jp/en/activity/aaai2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/aaai2026/D1 Ozeki presented at the ASTAD workshop held within AAAI2026 in Singapore.Sun, 25 Jan 2026 15:00:00 GMTPublications & Talkshttps://mc.net.ist.osaka-u.ac.jp/en/activity/semi2026-01/https://mc.net.ist.osaka-u.ac.jp/en/activity/semi2026-01/B4 Yamakubo presented at the SeMI Research Symposium held in Yufu, Oita.Wed, 21 Jan 2026 15:00:00 GMTPublications & Talkshttps://mc.net.ist.osaka-u.ac.jp/en/activity/invited_talk_qassim_university2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/invited_talk_qassim_university2026/Associate Professor Hamada Rizk delivered an invited talk virtually at Qassim University, Saudi ArabiaWed, 21 Jan 2026 15:00:00 GMTOthershttps://mc.net.ist.osaka-u.ac.jp/en/activity/icdcn2026/https://mc.net.ist.osaka-u.ac.jp/en/activity/icdcn2026/16 presentations and 2 awards at ICDCN 2026 held in Nara, Japan (January 2026)Tue, 06 Jan 2026 00:00:00 GMTPublications & TalksAwardshttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Ren Ozeki, Hamada Rizk, Hirozumi YamaguchiTue, 01 Apr 2025 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Yuto Inaba, Tatsuya Amano, Akihito Hiromori, Hirozumi YamaguchiTue, 01 Apr 2025 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Hibiki Yoshizaki, Akira Uchiyama, Akihito Hiromori, Mineo Takai, Hirozumi YamaguchiTue, 01 Apr 2025 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Hongyin Qiao, Qingxin Xia, Hamada Rizk, Takuya MaekawaTue, 01 Apr 2025 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Heetae Jin, Akira UchiyamaTue, 01 Apr 2025 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Future direct-to-device satellite communications may require distributed phased-array antennas formed by thousands of satellites flying in precise coordination. Evaluating control algorithms for such large formations demands simulation tools that combine high-fidelity orbital mechanics with scalable parallel execution, but existing frameworks do not satisfy both requirements. This paper presents a distributed simulation framework for large-scale satellite formation flying. The framework decomposes simulation into independent modules for orbital propagation, electromagnetic force computation, and control algorithms, connected through ROS2 publish-subscribe messaging. A snapshot-based synchronization mechanism coordinates modules at fixed intervals while orbital propagators advance with adaptive timesteps internally. We implement orbital mechanics using Orekit with perturbation models including non-spherical Earth gravity, atmospheric drag, solar radiation pressure, and third-body effects. Evaluation on formations of up to 10,000 satellites demonstrates a 7.6× speedup with 16 parallel nodes under full perturbation models, and sub-millimeter position errors below 0.4 mm RMS over 7-day two-body simulations used for numerical validation. The modular architecture allows researchers to integrate new control algorithms without modifying existing modules.Tue, 01 Apr 2025 00:00:00 GMTinternational_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Rizk Hamada, 内山 彰, 山口 弘純, 森岡 澄夫, 稲川 貴大Tue, 01 Apr 2025 00:00:00 GMTdomestic_confhttps://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/https://mc.net.ist.osaka-u.ac.jp/en/publications/year/2025/Heetae Jin, Akira UchiyamaTue, 01 Apr 2025 00:00:00 GMTdomestic_conf