Results 271 to 280 of about 366,947 (316)
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On Landau’s Eigenvalue Theorem for Line-of-Sight MIMO Channels
IEEE Wireless Communications Letters, 2022An alternative derivation is provided for the degrees of freedom (DOF) formula on line-of-sight (LOS) channels via Landau’s eigenvalue theorem for bandlimited signals. Compared to other approaches, Landau’s theorem provides a general framework to compute
Andrea Pizzo, A. Lozano
semanticscholar +1 more source
An efficient ‘image-based’ indoor propagation model for line-of-sight (LOS) and non-LOS applications
IEE Colloquium on `Propagation in Buildings', 1995A three dimensional `image-based' ray tracing algorithm for indoor environments is presented. The model is capable of predicting wideband as well as narrowband propagation information for single floor scenarios. To show the practicality of such a model, the ray tracing engine has been used to investigate a typical indoor environment.
Athanasiadou, GE, Nix, AR, McGeehan, JP
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IEEE Transactions on Systems, Man, and Cybernetics: Systems, 2022
In this article, a practical three-dimensional (3-D) guidance is designed to achieve trajectory constrained flight, i.e., arriving at the destination with desired approach angles under limited field-of-view (FOV) and varying velocity.
Tuo Han, Q. Hu, Ming Xin
semanticscholar +1 more source
In this article, a practical three-dimensional (3-D) guidance is designed to achieve trajectory constrained flight, i.e., arriving at the destination with desired approach angles under limited field-of-view (FOV) and varying velocity.
Tuo Han, Q. Hu, Ming Xin
semanticscholar +1 more source
Performance Evaluation of Line of Sight (LoS) in Mobile Ad hoc Networks
2020The era of multimedia communication is a major part and partial of each and every user life each task now depends very much on the Internet. Line-of-sight is the biggest problem many are facing, while using Internet. In particular, the problem of mobile station tracking at various base stations is considered.
C. R. Chethan +2 more
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Test and Measurement on a 60 GHz Line of Sight (LOS) Communication Link
IETE Technical Review, 2003To design and implement a 60 GHz based Multimedia Mobile Communication (MMC) system, we wish to incorporate the latest state-of-art Digital Video Broadcasting (DVB) and Spread Spectrum/Code Division Multiple Access (SS/CDMA) technologies. Accordingly, we have studied experimentally those two technologies through experimentation at C-band systems, not ...
R Bera, Sanjib Sil, H Sarkar, J Bera
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Rain fade margin of terrestrial line-of-sight (LOS) links for 5G networks in Peninsular Malaysia
International Journal of Microwave and Wireless Technologies, 2021AbstractAdvanced telecommunication systems are moving toward a high data transfer rate and wider bandwidth. The 5G communication network has recently been implemented for such aims. However, 5G networks operating with high operating frequency (typically above 20 GHz) could lead to impairments because of the atmospheric phenomena mainly precipitation ...
Shi Jie Seah +3 more
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Maximizing Line-of-Sight Coverage for mmWave Wireless LANs With Multiple Access Points
IEEE/ACM Transactions on Networking, 2022In this paper, we investigate the optimal line-of-sight (LoS) coverage problem for multiple access point (multi-AP) mmWave wireless LANs in indoor scenarios.
Yuchen Liu +3 more
semanticscholar +1 more source
ISA transactions, 2021
This paper focuses on the path following problem of unmanned surface vehicles (USVs) with unknown velocities, model uncertainties, and actuator saturation. To steer a USV rapidly and accurately follow the desired parameterized path, a line-of-sight (LOS)-
Mingcong Li +3 more
semanticscholar +1 more source
This paper focuses on the path following problem of unmanned surface vehicles (USVs) with unknown velocities, model uncertainties, and actuator saturation. To steer a USV rapidly and accurately follow the desired parameterized path, a line-of-sight (LOS)-
Mingcong Li +3 more
semanticscholar +1 more source
Parametric evaluation of line-of-sight (LOS) channel in LiFi networks
Journal of Optical CommunicationsAbstract Light Fidelity (LiFi) based on data transfer with visible light offers a more profound solution to the wireless communication paradigms. This study brings focus on how the line-of-sight (LOS) channel can be used to enhance the performance of a LiFi network.
Muhammad Subhan +4 more
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Voice Delivery using The Visible Light Communication (VLC) Prototype on Line of Sight (LOS) Channels
2020 6th International Conference on Science in Information Technology (ICSITech), 2020Visible Light Communication (VLC) is the one of technologies used for 6th generation of telecommunications (6G), because it has a wide frequency spectrum, higher speed and safety. We have conducted an experiment using a prototype to transmit sound. Measurements were made by changing the receiving distance from 30 cm up to 300 cm in increments of 30 cm.
Dewandari Adi Antika Putri +3 more
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