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Ann Mary Eapen, Sidi Ahmed Bendoukha, Reem Al-Ali and Abdulrahman Sulaiman
This paper presents an in-depth analysis of DEWASAT-2, a 6U CubeSat designed for low Earth remote sensing applications. DEWASAT-2 is equipped with two payloads: a high-resolution camera for Earth observation and a spectrometer for detecting greenhouse ga...
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Eduardo Ferreira, Pedro Sebastião, Francisco Cercas, Carlos Sá Costa and Américo Correia
Today, the internet is fundamental to social inclusion. There are many people that live in remote areas, and the only way to supply internet services is through the use of microwave terrestrial and satellite systems. Thus, it is important to have efficie...
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Geuk-Nam Kim, Sang-Young Park, Sehyun Seong, Jae-Young Choi, Sang-Kook Han, Young-Eon Kim, Suyong Choi, Joohee Lee, Sungmoon Lee, Han-Gyeol Ryu and Seonghui Kim
With growth in data volume from space missions, interest in laser communications has increased, owing to their importance for high-speed data transfer in the commercial and defense fields, spaceborne remote sensing, and surveillance. Here, we propose a n...
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Elaheh Shamoushaki, Hadi Aliakbarian
Pág. 117 - 127
In this paper, a communication link based on circular phased array antennas generating orbital angular momentum (OAM) beams at radio frequency is investigated. The presence of a null in the radiation pattern of OAM antennas is the main drawback of them. ...
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Tullio Giuffrè, Marinella Fossetti and Alfio Francesco Siciliano
Generally, during maintenance operations on bridges and motorway viaducts, the circulation of vehicles is limited or suspended. This causes significant economic losses due to the increase in the costs of transport: delays, increased fuel consumption, hig...
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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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Jinlong Wei, Ji Zhou, Elias Giacoumidis, Paul A. Haigh and Jianming Tang
To address the continuous growth in high-speed ubiquitous access required by residential users and enterprises, Telecommunication operators must upgrade their networks to higher data rates. For optical fiber access networks that directly connect end user...
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Wladimir Andreff
Despite the globalisation of European soccer, each professional league exhibits specificities. French Ligue 1 sometimes contends with the trading-off of financial performance against sporting performance of its teams in European soccer competitions, and ...
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Lior Gazit and Hagit Messer
While the effect of rainfall and other environmental phenomena on a link budget in microwave wireless communication has been well studied for network design, it has usually been done for each microwave-link separately. Recently, attenuation in multiple m...
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Antonio Mauttone, Gonzalo Mercadante, María Rabaza, Fernanda Toledo
Pág. 969 - 976
We propose an optimization framework for urban bicycle network design. The model takes into account interests of the users (who travel along shortest paths) and the planners (available budget). An underlying network composed by street segments suitable t...
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