Results 221 to 230 of about 9,429 (256)
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Performance of LED for line-of-sight (LoS) underwater wireless optical communication system
Journal of Optical Communications, 2020Abstract Underwater wireless optical communications (UWOC) recently emerge as a solution to the problem of underwater communication for link with a high data rate, low delay, safety, and high immunity. In this study, the line of sight (LoS) method based on LED used for UWOC with different modulation schemes.
Alaa G. Nasser, Mazin Ali A. Ali
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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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2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754), 2005
The paper present the results of a multiple-input multiple-output (MIMO) channel capacity measurement experiment conducted in an indoor line-of-sight (LOS) office environment. Channel responses were taken systematically with varying distance in a static indoor environment. Results showed measurements with high received signal-to-noise ratio (SNR) and a
Hai-Yeow-Eugene Chua +2 more
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The paper present the results of a multiple-input multiple-output (MIMO) channel capacity measurement experiment conducted in an indoor line-of-sight (LOS) office environment. Channel responses were taken systematically with varying distance in a static indoor environment. Results showed measurements with high received signal-to-noise ratio (SNR) and a
Hai-Yeow-Eugene Chua +2 more
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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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Line of Sight (LOS) Stabilization Using Disturbance Observer (DOB)
2019The Line Of Sight (LOS) electro-optical sighting system based on gyroscopic stabilized gimbal staging is difficult to control because of the non-linearities, friction, disturbances and many other unknown parameters associated with the outside environment.
Akansha Rautela, R. P. Chauhan
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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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2018 IEEE/MTT-S International Microwave Symposium - IMS, 2018
This submission describes phased-array antenna (PAA) development efforts in mobile communications and sensor applications at Ku-band and higher. The application of heterogeneous integration to a phased-array beyond the integrated circuitry and electronics allows a significant reduction of piece-parts and the number of suppliers as well as improving ...
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This submission describes phased-array antenna (PAA) development efforts in mobile communications and sensor applications at Ku-band and higher. The application of heterogeneous integration to a phased-array beyond the integrated circuitry and electronics allows a significant reduction of piece-parts and the number of suppliers as well as improving ...
openaire +1 more source