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Помехоустойчивое кодирование мультимедиа данных в компьютерных сетях

Authors: Кориков, A.;

Помехоустойчивое кодирование мультимедиа данных в компьютерных сетях

Abstract

Помехоустойчивое кодирование повышает достоверность доставки сообщений, передаваемых по компьютерным сетям, однако классические помехоустойчивые коды не компенсируют потерю пакетов мультимедиа данных в IP сетях. Проанализированы возможности применения стирающих кодов для восстановления пакетов при их потерях в сети. Сделан вывод о том, что применение стирающих кодов для кодирования мультимедиа данных в компьютерных сетях имеет перспективы, но требует усовершенствования. Предложены новые неслучайные стирающие помехоустойчивые коды для уменьшения потерь мультимедиа данных в IP телевещании.

Error-correcting is aimed at increasing of reliability of information being transmitted over error-prone environment. However, traditional error-correcting codes do not allow to recovery data from packet losses occurring in IP networks. The present paper provides the analysis of application of erasure codes for packet losses recovery in digital multimedia over IP telecasting. It is concluded, that the erasure coding has perspectives for multimedia over IP telecasting, but it needs to be further developed. The novel non-random erasure codes (NREC) are proposed.

Keywords

МУЛЬТИМЕДИА,ПОМЕХОУСТОЙЧИВОЕ КОДИРОВАНИЕ,ЦИФРОВОЕ ТЕЛЕВЕЩАНИЕ,СТИРАЮЩИЕ КОДЫ,ЛТКОДЫ,НЕСЛУЧАЙНЫЕ СТИРАЮЩИЕ КОДЫ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average