Results 11 to 20 of about 155,596 (314)

Interaction of electromagnetic radiation with biological objects and social systems [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2021
Popularisation of the key scientific problems occupied a significant place in D. I. Trubetskov’s work. In memory of this fact, the problem of electromagnetic field affecting biological objects is discussed in a popular manner in this article.
Dmitriev, Aleksandr Sergeevich   +1 more
doaj   +1 more source

Deep Learning Based Channel Estimation Schemes for IEEE 802.11p Standard

open access: yesIEEE Access, 2020
IEEE 802.11p standard is specially developed to define vehicular communications requirements and support cooperative intelligent transport systems. In such environment, reliable channel estimation is considered as a major critical challenge for ensuring ...
Abdul Karim Gizzini   +3 more
doaj   +1 more source

Multiple-Ring-Core FM-EDF for Weakly-Coupled MDM Amplification With Low Differential Modal Gain

open access: yesIEEE Photonics Journal, 2021
Recently weakly-coupled mode-division multiplexing (MDM) transmission systems and networks based on ultralow-modal-crosstalk few-mode fiber (FMF) have attracted much interest, for which optical amplification technologies with low modal crosstalk and two ...
Jinglong Zhu   +7 more
doaj   +1 more source

Investigation on Beam Expansion Method for Weakly-Coupled FMF Connections

open access: yesIEEE Photonics Journal, 2023
Recently, weakly-coupled mode-division multiplexing (MDM) technology based on few-mode fibers (FMFs) has been widely investigated as a promising candidate for capacity enhancement of various applications such as optical interconnections.
Ruiting Cheng   +8 more
doaj   +1 more source

Impact of mobility in mobile communication systems [PDF]

open access: yes, 1996
A new method is developed for systematic tracking of the random movement of a mobile station in a cellular environment. It incorporates mobility parameters under most generalized conditions, so that the model could be tailored to be applicable in most cellular environments. This mobility model is used to characterise the cell residence time of both new
Mahmood M. Zonoozi, Palitha Dassanayake
openaire   +1 more source

QUALITY OF SATELLITE COMMUNICATION IN SELECTED MOBILE ANDROID SMARTPHONES

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2021
Today, thanks to mobile devices, satellite communication is available to anyone and everywhere. Gaining information on one’s position using GNSS (Global Navigation Satellite Systems), particularly in unknown urban environments, had become an everyday ...
Przemysław Falkowski-Gilski
doaj   +1 more source

Communications and consistency in mobile file systems [PDF]

open access: yesIEEE Personal Communications, 1995
To overcome the availability, latency, bandwidth, and cost barriers of mobile networks, mobile clients of distributed file systems switch between connected and disconnected modes of operation. Lying between these are modes of operation that refine the consistency semantics of cached files, allowing a mobile client to select a mode appropriate for the ...
Peter Honeyman, Larry B. Huston
openaire   +1 more source

MOBILE TECHNOLOGIES IN THE DEVELOPMENT OF PROFESSIONALLY ORIENTED ENGLISH SPEECH INTERACTION COMPETENCE IN INFORMATION SYSTEMS AND TECHNOLOGY MILITARY STUDENTS

open access: yesІнформаційні технології і засоби навчання, 2022
The purpose of learning a foreign language by future information systems and technology officers is the development of practical skills to the extent that is necessary for communication in various professional situations.
Наталія Василівна Майєр   +1 more
doaj   +1 more source

Architecture for group communication in mobile systems [PDF]

open access: yesProceedings Seventeenth IEEE Symposium on Reliable Distributed Systems (Cat. No.98CB36281), 2002
In mobile computing systems the network configuration changes due to node mobility. The paper identifies the issues a group communication service has to take into account in order to handle node mobility. These include the need to identify the location of a node, and the ability to cope with inaccuracies in the determination of a group membership.
Ravi Prakash 0001, Roberto Baldoni
openaire   +1 more source

The performance enhancement of multibeam adaptive base-station antennas for cellular land mobile radio systems [PDF]

open access: yes, 1990
The problem of meeting the proliferating demands for mobile telephony within the confinement of the limited radio spectrum allocated to these services is addressed.
MCGEEHAN, J   +11 more
core   +1 more source

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