no code implementations • 6 Mar 2022 • Ryusei Sugano, Ryoichi Shinkuma, Takayuki Nishio, Sohei Itahara, Narayan B. Mandayam
This paper presents the watch-from-sky framework, where multiple unmanned aerial vehicles (UAVs) play four roles, i. e., sensing, data forwarding, computing, and patrolling, for predictive police surveillance.
no code implementations • 17 Dec 2021 • Sohei Itahara, Takayuki Nishio, Yusuke Koda, Koji Yamamoto
However, generally, there is a communication system-level trade-off between communication latency and reliability; thus, to provide accurate DI results, a reliable and high-latency communication system is required to be adapted, which results in non-negligible end-to-end latency of the DI.
no code implementations • 29 Oct 2021 • Ryosuke Hanahara, Sohei Itahara, Kota Yamashita, Yusuke Koda, Akihito Taya, Takayuki Nishio, Koji Yamamoto
This indicates that WiFi sensing that leverages the BFM matrix is more practical to implement using the pre-installed APs.
no code implementations • 27 Oct 2021 • Sohei Itahara, Sota Kondo, Kota Yamashita, Takayuki Nishio, Koji Yamamoto, Yusuke Koda
Moreover, the evaluations performed in this study revealed that the BFF-based MUSIC achieved a comparable error of AoD estimation to the CSI-based MUSIC, while BFF is a highly compressed version of CSI in IEEE 802. 11ac/ax.
no code implementations • 28 Apr 2021 • Sohei Itahara, Takayuki Nishio, Koji Yamamoto
This study solves the problem of the incremental retransmission latency caused by packet loss in a lossy IoT network.
no code implementations • 14 Aug 2020 • Sohei Itahara, Takayuki Nishio, Yusuke Koda, Masahiro Morikura, Koji Yamamoto
To this end, based on the idea of leveraging an unlabeled open dataset, we propose a distillation-based semi-supervised FL (DS-FL) algorithm that exchanges the outputs of local models among mobile devices, instead of model parameter exchange employed by the typical frameworks.
no code implementations • 21 Apr 2020 • Sohei Itahara, Takayuki Nishio, Masahiro Morikura, Koji Yamamoto
The key idea of the proposed method is to obtain a ``good'' subnetwork from the original NN using the unlabeled data based on the lottery hypothesis.