Search Results for author: Katsuyuki Haneda

Found 10 papers, 0 papers with code

Ray-Optics Simulations of Outdoor-to-Indoor Multipath Channels at 4 and 14 GHz

no code implementations6 Oct 2022 Pasi Koivumäki, Aki Karttunen, Katsuyuki Haneda

This work reveals the importance of a floor plan model in accurately simulating the channel; it is confirmed that path loss can be replicated with a simple interior path loss model in place of a detailed building interior model, but neglecting to model the interior results in high delay and angular spread errors.

Impacts of Real Hands on 5G Millimeter-Wave Cellphone Antennas: Measurements and Electromagnetic Models

no code implementations3 Aug 2022 Bing Xue, Pasi Koivumaki, Lauri Vaha-Savo, Katsuyuki Haneda, Clemens Icheln

Their radiation properties are evaluated through near-field scanning of the two prototypes, first in free space for calibration of the antenna measurement system and for building simplified models of the cellphone arrays.

Electromagnetic-Thermal Analyses of Distributed Antennas Embedded into a Load Bearing Wall

no code implementations13 Jul 2022 Lauri Vähä-Savo, Katsuyuki Haneda, Clemens Icheln, Xiaoshu Lü

To solve this problem with indoor connectivity, we study passive antenna systems embedded in walls of low-energy buildings.

Artificial intelligence enabled radio propagation for communications-Part II: Scenario identification and channel modeling

no code implementations24 Nov 2021 Chen Huang, Ruisi He, Bo Ai, Andreas F. Molisch, Buon Kiong Lau, Katsuyuki Haneda, Bo Liu, Cheng-Xiang Wang, Mi Yang, Claude Oestges, Zhangdui Zhong

This two-part paper investigates the application of artificial intelligence (AI) and in particular machine learning (ML) to the study of wireless propagation channels.

Artificial intelligence enabled radio propagation for communications-Part I: Channel characterization and antenna-channel optimization

no code implementations24 Nov 2021 Chen Huang, Ruisi He, Bo Ai, Andreas F. Molisch, Buon Kiong Lau, Katsuyuki Haneda, Bo Liu, Cheng-Xiang Wang, Mi Yang, Claude Oestges, Zhangdui Zhong

To provide higher data rates, as well as better coverage, cost efficiency, security, adaptability, and scalability, the 5G and beyond 5G networks are developed with various artificial intelligence techniques.

Large-Scale Parameters of Spatio-Temporal Short-Range Indoor Backhaul Channels at 140 GHz

no code implementations28 Sep 2020 Sinh L. H. Nguyen, Katsuyuki Haneda, Jan Järveläineny, Aki Karttuneny, Jyri Putkonen

The 3GPP NR channel model is meant for access links and said to be valid up to 100 GHz, while our measurements cover shortrange backhaul scenarios at 140 GHz.

valid

Standardization of Propagation Models: 800 MHz to 100 GHz -- A Historical Perspective

no code implementations15 Jun 2020 Harsh Tataria, Katsuyuki Haneda, Andreas F. Molisch, Mansoor Shafi, Fredrik Tufvesson

This motivated the development of the first standardized propagation model by the European Cooperation in Science and Technology (COST) 207 working group.

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