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Siyuan Yang, Mondher Bouazizi, Tomoaki Ohtsuki, Yohei Shibata, Wataru Takabatake, Kenji Hoshino and Atsushi Nagate
In this paper, we propose a novel Deep Reinforcement Learning Evolution Algorithm (DRLEA) method to control the antenna parameters of the High-Altitude Platform Station (HAPS) mobile to reduce the number of low-throughput users. Considering the random mo...
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Koki Hamajima, Kei Yasukawa, Masazumi Ueba, Hisayoshi Kanou, Munehiro Matsui, Junichi Abe, Kiyohiko Itokawa and Fumihiro Yamashita
Among several usages of unmanned aerial vehicles (UAV), wireless relay systems for high altitudes using fixed-wing UAVs, or high-altitude platform stations (HAPS), are some of the most promising applications. To realize the systems by making the most of ...
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Carlo E.D. Riboldi, Alberto Rolando and Gregory Regazzoni
When ground observation or signal relaying in the vicinity of an unfriendly operative scenario are of interest, such as for military actions or disaster relief, high-altitude airships (HAA) offer some technical benefits. Featuring a milder cost and highe...
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Lorenzo Frezza, Paolo Marzioli, Fabio Santoni and Fabrizio Piergentili
The usage of aeronautical radio-frequency navigational aids can support the future stratospheric aviation as back-up positioning systems. Although GNSS has been extensively redundant in the last years of space operations, radio NavAids can still be suppo...
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Matteo Gemignani and Salvo Marcuccio
Sounding balloons, available at very low cost from commercial vendors and operable with minimal training, have an excellent potential as testing platforms in the near-space environment. The work reported here was motivated by the need to perform an exper...
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Omar Said and Amr Tolba
Employment of the Internet of Things (IoT) technology in the healthcare field can contribute to recruiting heterogeneous medical devices and creating smart cooperation between them. This cooperation leads to an increase in the efficiency of the entire me...
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Emmanouel T. Michailidis, Stelios M. Potirakis and Athanasios G. Kanatas
During the last few years, various Industrial Internet of Things (IIoT) applications have emerged with numerous network elements interconnected using wired and wireless communication technologies and equipped with strategically placed sensors and actuato...
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Ogbonnaya Anicho, Philip B Charlesworth, Gurvinder Baicher, Atulya Nagar
Pág. 1 - 18
The impact and requirements for implementing stratospheric or high altitude vehicles for communications coverage may vary from one geographical location to another. These variations may impose significant constraints on energy and various key parameters ...
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Xiaoyang Liu, Hengyang Liu, Chao Liu and Ya Luo
Because of the high BER (Bit Error Rate), low time delay and low channel transmission efficiency of HAPS (High Altitude Platform Station) in the near space. The link budget of HAPS and channel model are proposed in this paper. According to the channel ch...
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George M. Woodall, Mark D. Hoover, Ronald Williams, Kristen Benedict, Martin Harper, Jhy-Charm Soo, Annie M. Jarabek, Michael J. Stewart, James S. Brown, Janis E. Hulla, Motria Caudill, Andrea L. Clements, Amanda Kaufman, Alison J. Parker, Martha Keating, David Balshaw, Kevin Garrahan, Laureen Burton, Sheila Batka, Vijay S. Limaye, Pertti J. Hakkinen and Bob Thompson
The US Environmental Protection Agency (EPA) and other federal agencies face a number of challenges in interpreting and reconciling short-duration (seconds to minutes) readings from mobile and handheld air sensors with the longer duration averages (hours...
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