Results 31 to 40 of about 156,895 (196)

Erasure Broadcast Channels With Intermittent Feedback [PDF]

open access: yesIEEE Transactions on Communications, 2021
Achievable data rates in wireless systems rely heavily on the available channel state information (CSI) throughout the network. However, feedback links, which provide this information, are scarce, unreliable, and subject to security threats. In this work, we study the impact of having intermittent feedback links on the capacity region of the canonical ...
Alireza Vahid   +2 more
openaire   +2 more sources

Efficient Periodic Broadcasting for Mobile Networks at Small Client Receiving Bandwidth and Buffering Space

open access: yesJournal of Applied Mathematics, 2013
Periodic broadcasting is an effective approach for delivering popular videos. In general, this approach does not provide interactive (i.e., VCR) functions, and thus a client can tolerate playback latency from a video server.
Hsiang-Fu Yu   +3 more
doaj   +1 more source

Intersystem soft handover for converged DVB-H and UMTS networks [PDF]

open access: yes, 2008
Digital video broadcasting for handhelds (DVB-H) is the standard for broadcasting Internet Protocol (IP) data services to mobile portable devices. To provide interactive services for DVB-H, the Universal Mobile Telecommunications System (UMTS) can be ...
Owens, TJ, Yang, X
core   +2 more sources

Graphics Creation for Television Using the Sony SMC-70G Microcomputer

open access: yesCanadian Journal of Learning and Technology, 1986
Carleton University operates an instructional television channel across the Ottawa cable companies. There was a need to modernize the equipment used for feeding course and University activity information over the channel when not broadcasting ...
Ross Mutton
doaj   +1 more source

Quantum Cloning, Eavesdropping and Bell's inequality [PDF]

open access: yes, 1996
We analyze various eavesdropping strategies on a quantum cryptographic channel. We present the optimal strategy for an eavesdropper restricted to a two-dimensional probe, interacting on-line with each transmitted signal.
B. Huttner, Fuchs, Gisin, N. Gisin
core   +4 more sources

Enhanced Mobile Digital Video Broadcasting with Distributed Space-Time Coding [PDF]

open access: yes, 2012
International audienceThis paper investigates the distributed space-time (ST) coding proposals for the future Digital Video Broadcasting--Next Generation Handheld (DVB-NGH) standard.
Crussière, Matthieu   +4 more
core   +3 more sources

Production of cultural and educational programs and cultural industries: on the issue of approaches to television analysis

open access: yesНеофилология
INTRODUCTION. Television activity is devalued due to the loss of its exclusivity in the creation of video content and dissemination of video information.
O. A. Razina
doaj   +1 more source

CRCSI: A Generic Block Interleaver for the Next Generation Terrestrial Broadcast Systems

open access: yesApplied Sciences, 2022
In order to combat the impulse noise and channel time-frequency selective fading, it is essential to use channel interleavers. Among them, the block interleaver has been widely used in terrestrial broadcasting systems such as DVB-T2 and ATSC 3.0, since ...
Ruijia Li   +3 more
doaj   +1 more source

An adaptive quasi harmonic broadcasting scheme with optimal bandwidth requirement

open access: yes, 2014
The aim of Harmonic Broadcasting protocol is to reduce the bandwidth usage in video-on-demand service where a video is divided into some equal sized segments and every segment is repeatedly transmitted over a number of channels that follows harmonic ...
Afrin, Farzana   +1 more
core   +1 more source

Separate Source-Channel Coding for Broadcasting Correlated Gaussians [PDF]

open access: yes, 2011
The problem of broadcasting a pair of correlated Gaussian sources using optimal separate source and channel codes is studied. Considerable performance gains over previously known separate source-channel schemes are observed.
Gao, Yang, Tuncel, Ertem
core   +1 more source

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