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- Workshop on AP Technologies
- Workshop 3
Workshop on AP Technologies
Workshop 3
Radio Wave Propagation Models for Wireless Zone Design in High Frequency Bands – From Microwave to Millimeter Wave Bands –
Abstract
This workshop will focus on the topics of radio wave propagation required for the use of wireless access systems such as wireless LAN and cellular systems in the higher frequency bands from microwave to millimeter wave bands, which are expected to increase in the future. Specifically, after describing the propagation characteristics in the higher frequency band and describing the necessary items and requirements for studying propagation models in the higher frequency band, the path loss model and visibility (line-of-sight) model in the microwave band will be described. A simple example of a wireless zone design will be then presented. Most of these propagation models are based on previous research and development results of the speakers, which have been published in papers and/or ITU-R (International Telecommunication Union Radio Sector) recommendations and are widely available to the public. Assumed contents are as follows．(1) Scatterers to consider for frequency and radio zone design, (2) Basic knowledge of path loss, (3) Path loss models in microwave band, (4) Visibility (Line-Of-Sight ratio) models, (5) Radio zone design in the higher frequency band. In addition to the technical aspects of these propagation models, the origins of the models and points to be considered when using them will be discussed.
Presenter | Prof. Dr. Naoki Kita |
|---|---|
Affiliation | Tokyo Denki University, Japan |
Naoki Kita received the B.E. degree from Tokyo Metropolitan Institute of Technology (now Tokyo Metropolitan University), Tokyo, Japan in 1994, and received the M.E. and Ph.D. degrees from Tokyo Institute of Technology (now Institute of Science Tokyo), Tokyo, Japan in 1996 and 2007. He joined NTT (Nippon Telegraph and Telephone Corp.) in 1996, where he was engaged in the research of propagation characteristics for wireless access systems, the development of future satellite communication systems, the research and development of future wireless access network systems. From 2000 to 2009, he was active in standardization of the ITU-R SG3 (International Telecommunication Union Radio Sector Study Group 3) based radio wave propagation. From 2009 to 2010, he was a visiting scholar at Stanford University, CA, USA. From 2013 to 2014, he was a visiting research scholar at Waseda University, Tokyo, Japan. He has been the track co-chairs of the IEEE AP-S/URSI 2025. He received the IEICE Young Researcher’s Award, the IEICE Communications Society Best Paper Award, IEICE Best Paper Award, and Best Paper Award in ISAP2016 in 2002, 2010, 2014, and 2016, respectively. He also received the Telecommunication Advancement Foundation Telecom System Technology Award in 2024. He is currently a professor at the School of System Design and Technology, Tokyo Denki University. He is a senior member of the IEICE and member of the IEEE.
Supported by International Exchange Program of National
Institute of Information and Communications Technology (NICT)
