Zobrazeno 1 - 10
of 918
pro vyhledávání: '"line of sight (LoS)"'
Autor:
Zihao Wang, Chao Peng, Tong Zhang, Xiang Liu, Qiang Wang, Shunfa Liu, Yuankang Wang, Yongmei Huang, Dong He
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-8 (2024)
Vehicular quantum communication terminals (VQCTs) are crucial for establishing global-scale quantum networks. High-precision line-of-sight (LOS) pointing is essential for fast and reliable acquisition in satellite-based quantum key distribution (QKD)
Externí odkaz:
https://doaj.org/article/08b5cd4ecac54e28ab09adf26b9a3564
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 364-378 (2024)
This paper presents a geometry-based three-dimensional Probability of Line of Sight $(P_{\mathrm {LoS}})$ model for generic urban environments. The existing $P_{\mathrm {LoS}}$ models are mostly empirical, based on measurements or ray-tracing simulat
Externí odkaz:
https://doaj.org/article/682e4355ba96451288aaf66e47de579f
Autor:
Muhammad Ismail, Fazal Muhammad, Zeeshan Shafiq, Muhammad Irfan, Saifur Rahman, Salim Nasar Faraj Mursal, Grzegorz Nowakowski, Eduard Zharikov
Publikováno v:
IEEE Access, Vol 12, Pp 25245-25253 (2024)
In Vehicular Ad Hoc Networks (VANETs), the Road-Side-Units (RSUs) that act as base station for serving vehicles may experience significant traffic and congestion during peak hours due to the density of vehicles. To solve this problem, we suggest a co
Externí odkaz:
https://doaj.org/article/c2ea155a40a64a9bb5ed2081e631d38f
Autor:
Santosh A. Janawade, Prabu Krishnan, Krishnamoorthy Kandasamy, Shashank S. Holla, Karthik Rao, Aditya Chandrasekar
Publikováno v:
Future Internet, Vol 16, Iss 8, p 272 (2024)
Intelligent Reflecting Surfaces (IRSs) enable us to have a reconfigurable reflecting surface that can efficiently deflect the transmitted signal toward the receiver. The initial step in the IRS usually involves estimating the channel between a fixed
Externí odkaz:
https://doaj.org/article/f97e10762612412a8d8d648050d70adb
Publikováno v:
Measurement Science Review, Vol 23, Iss 3, Pp 116-123 (2023)
Healthcare monitoring is a rapidly developing network in the field of advanced medical treatment. The network combines the ideology of wireless communication, signal processing, medical information and real-time processing units to support the medica
Externí odkaz:
https://doaj.org/article/3a4c67146d2b4d2cbab1d87007f829f9
Autor:
Ashwani Raju, Kamran Mehdi
Publikováno v:
Geocarto International, Vol 38, Iss 1 (2023)
The present study explores a holistic approach toward better assimilation of the contextual relationship between coal fire-induced land subsidence in the Jharia Coalfield (JCF), India. For the process, 31 consecutive Sentinel-1A and Landsat 8 scenes
Externí odkaz:
https://doaj.org/article/a36fd6b5cdee46939fb57d3db05c1d31
Autor:
Bui Vu Minh, Anh-Tu Le, Chi-Bao Le, Sang Quang Nguyen, Van-Duc Phan, Tan N. Nguyen, Miroslav Voznak
Publikováno v:
IEEE Access, Vol 11, Pp 117562-117575 (2023)
To enhance the service quality of the unmanned aerial vehicle (UAV), the UAV-aided Internet of Things (IoT) systems could deploy a Deep Neural Network (DNN) for performance prediction for the users. Non-orthogonal multiple access (NOMA) is applied to
Externí odkaz:
https://doaj.org/article/622e0a6cb4ea41419c34ef04872b78d6
Publikováno v:
IEEE Access, Vol 11, Pp 70353-70367 (2023)
Recently, unmanned aerial vehicles (UAVs) have attained considerable attention for providing reliable and cost-effective communication due to the flexibility of deployment and line of sight (LoS) propagation. Efficient UAV path planning is one of the
Externí odkaz:
https://doaj.org/article/d9db22e5010740668e1c1eb98ec996e3
Publikováno v:
IEEE Access, Vol 11, Pp 68890-68896 (2023)
Drones have greatly enhanced search and rescue missions. They help improve the response time of the rescue team. They can cover vast challenging terrains quickly. Drones used in rescue missions are expensive. Because of the challenging terrains, if a
Externí odkaz:
https://doaj.org/article/c5b8feb9280b4a83b8d9903804cc4be2
Publikováno v:
Leida xuebao, Vol 11, Iss 6, Pp 1061-1080 (2022)
The multirotor Unmanned Aerial Vehicle (UAV) has the advantages of small size, light weight, and low cost. However, imaging signal processing is complicated due to the extremely unstable flight path. Real-time adjustment of pulse repetition frequency
Externí odkaz:
https://doaj.org/article/5b3e0c65ac2e46c1a426e75c3740d481