Results 81 to 90 of about 576,785 (363)

On channel estimation and optimal training design for amplify and forward relay networks [PDF]

open access: yes, 2007
10.1109/GLOCOM.2007.763GLOBECOM - IEEE Global Telecommunications Conference4015 ...
Cui, Tao   +2 more
core   +2 more sources

The Customer Contentment with Products and Services in Telecommunications Sector in the Slovak Republic

open access: yesCommunications, 2014
Communication is very important for people. Means of communication are constantly increasing and new forms, and ways of communication are developing because of technological innovations.
Anna Krizanova   +2 more
doaj   +1 more source

Design of Information and Telecommunication Systems with the Usage of the Multi-Layer Graph Model [PDF]

open access: yesin Proc. of XIIth International Conference The Experience of Designing and Application of CAD Systems in Microelectronics (CADSM), Lviv-Polyana, Ukraine, 2013. pp. 1-4, 2013
Considered in the paper is the overlaid nature of modern telecommunication networks and expediency of usage the multi-layer graph model for its design. General statement of design problem is given. The design method in general using multi-layer graph model and its application for a typical information and telecommunication system is proposed.
arxiv  

High Fidelity Waveguides Through Vitreous Media Recomposition for Next Generation Photonic Devices

open access: yesAdvanced Optical Materials, EarlyView.
A newly designed aluminosilicate glass enables the fabrication of femtosecond laser‐written optical waveguides with ultra‐low propagation losses of −0.020 dB cm−1 at 1310 nm and −0.037 dB cm−1 at 1550 nm. Raman, Brillouin, and electron microscopy analyses reveal the mechanisms behind refractive index modifications, highlighting the role of glass ...
T Toney Fernandez   +9 more
wiley   +1 more source

Telecommunications

open access: yes, 2002
What is the telecommunications industry? How does it relate to other activities in areas such as computing, software, semiconductors, the internet and electronic commerce, and the media? Where are its boundaries? What products and services should be included within it? What are its major markets? Which companies should be included in the industry?
Fransman, Martin, Krafft, Jackie
openaire   +2 more sources

U.S. Telecommunications Today [PDF]

open access: yesSSRN Electronic Journal, 2000
This paper reviews the current conditions in the U.S. telecommunications industry. It first examines the impact of technological and regulatory change on market structure and business strategy, and then the impact on pricing of digitization and the emergence of Internet telephony.
openaire   +3 more sources

Efficient Low‐Voltage Phase Shifter with Inkjet‐Printed Liquid Crystal on a Silicon on Insulator Platform

open access: yesAdvanced Optical Materials, EarlyView.
Demonstration of an electro‐optic phase shifter fabricated by inkjet printing liquid crystal on an integrated silicon photonics chip surface. On a completed silicon photonics wafer (including modulators, detectors, and metallization), the back‐end‐of‐line stack is opened up to inkjet‐print liquid crystal. A phase shift of 6 for 2.7 V is obtained within
Lukas Van Iseghem   +10 more
wiley   +1 more source

A TELECOMMUNICATIONS DEVELOPMENT FRAMEWORK FOR TELECOMMUNICATIONS OPERATORS IN THE SADC

open access: yesThe South African Journal of Industrial Engineering, 2012
<p>ENGLISH ABSTRACT: Telecommunications development in Southern Africa is encouraged by government-level support and market trends. Various markets in the Southern African Development Community (SADC) region offer telecommunications operators’ solid growth potential and the advantages of geographic diversification.<br /> This paper presents
Fricke, Mark Rolf   +1 more
openaire   +3 more sources

A study of a Java based framework for telecommunications services : a dissertation submitted in fulfilment of the requirements for the degree of Master of Science in Computer Science, Massey University, New Zealand [PDF]

open access: yes, 2000
Additional content held on disk with print copy in Library.In this report, we study some of the general issues surrounding the area of telecommunications service development including the history of telecommunications services, current service creation ...
Ferry, David Ian
core  

Asymmetric Transmission and Diffraction Engineering in Ultrathin media via Coupled Metasurfaces

open access: yesAdvanced Optical Materials, EarlyView.
Grating‐insulator‐grating coupled crosstalking metasurfaces hosted on a silicon nitride membrane platform for asymmetric control of the diffraction pattern and asymmetric transmission. It is shown that exploiting the interferences of higher diffraction orders between the two metasurfaces and engineering the resulting modes enables AT in such ...
Abbas Sheikh Ansari   +3 more
wiley   +1 more source

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