An Integrated Multiple Access and Hierarchical Coding Scheme for Video Communication on Wireless Networks
Identifieur interne : 001625 ( Istex/Corpus ); précédent : 001624; suivant : 001626An Integrated Multiple Access and Hierarchical Coding Scheme for Video Communication on Wireless Networks
Auteurs : Raffaele Bolla ; Alessandro Iscra ; Mario Marchese ; Carlo Nobile ; Sandro Zappa ToreSource :
- European Transactions on Telecommunications [ 1124-318X ] ; 2000-07.
Abstract
A Medium Access Control (MAC) protocol of the Reservation Random Access (RRA) family is integrated with a hierarchical video‐coding scheme, to realize effective real‐time video services over the up‐link of a mobile wireless network. For every picture or for each group of contiguous pictures (GOP), the encoder generates an information set organized in a hierarchical layered structure. The base layer contains the information needed to a low quality video; the other layers contain data, which, if received and decoded, can enhance the video quality. The basic idea is to reserve bandwidth only to grant the transmission of base layer information, and modify the MAC scheme to manage the video enhancement data together with voice/dota streams. by adaptively transmitting the increimental video information only it the performances of other traffic classes will not drop below a certain threshold. The aim or this proposal is the improvement of the video stream quality in low load conditions, without a significant reduction of other traffic classes performance during high load periods. Several simulation results show the effectiveness of the proposed method.
Url:
DOI: 10.1002/ett.4460110406
Links to Exploration step
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<name type="personal"><namePart type="given">Mario</namePart>
<namePart type="family">Marchese</namePart>
<affiliation>Dept. of Communications, Computer and Systems Science (DIST), University of Genoa, Via Opera Pia 13, Genova, Italy</affiliation>
<description>CNIT — Italian National Consortium for Telecommunications. Univ. of Genoa Research Unit. Via Opera Pia 13. Genova, Italy.</description>
<affiliation>E-mail: mario.marchese@cnit.it</affiliation>
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<name type="personal"><namePart type="given">Carlo</namePart>
<namePart type="family">Nobile</namePart>
<affiliation>Dept. of Communications, Computer and Systems Science (DIST), University of Genoa, Via Opera Pia 13, Genova, Italy</affiliation>
<role><roleTerm type="text">author</roleTerm>
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</name>
<name type="personal"><namePart type="given">Sandro Zappa</namePart>
<namePart type="family">Tore</namePart>
<affiliation>Dept. of Communications, Computer and Systems Science (DIST), University of Genoa, Via Opera Pia 13, Genova, Italy</affiliation>
<affiliation>E-mail: zap@dist.unige.it</affiliation>
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<originInfo><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher>
<place><placeTerm type="text">New York</placeTerm>
</place>
<dateIssued encoding="w3cdtf">2000-07</dateIssued>
<dateCaptured encoding="w3cdtf">1999-07-23</dateCaptured>
<copyrightDate encoding="w3cdtf">2000</copyrightDate>
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<language><languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<extent unit="figures">10</extent>
<extent unit="tables">2</extent>
<extent unit="references">34</extent>
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<abstract lang="en">A Medium Access Control (MAC) protocol of the Reservation Random Access (RRA) family is integrated with a hierarchical video‐coding scheme, to realize effective real‐time video services over the up‐link of a mobile wireless network. For every picture or for each group of contiguous pictures (GOP), the encoder generates an information set organized in a hierarchical layered structure. The base layer contains the information needed to a low quality video; the other layers contain data, which, if received and decoded, can enhance the video quality. The basic idea is to reserve bandwidth only to grant the transmission of base layer information, and modify the MAC scheme to manage the video enhancement data together with voice/dota streams. by adaptively transmitting the increimental video information only it the performances of other traffic classes will not drop below a certain threshold. The aim or this proposal is the improvement of the video stream quality in low load conditions, without a significant reduction of other traffic classes performance during high load periods. Several simulation results show the effectiveness of the proposed method.</abstract>
<relatedItem type="host"><titleInfo><title>European Transactions on Telecommunications</title>
</titleInfo>
<titleInfo type="abbreviated"><title>Eur. Trans. Telecomm.</title>
</titleInfo>
<genre type="Journal">journal</genre>
<subject><genre>article category</genre>
<topic>Special Issue</topic>
</subject>
<identifier type="ISSN">1124-318X</identifier>
<identifier type="eISSN">1541-8251</identifier>
<identifier type="DOI">10.1002/(ISSN)1541-8251</identifier>
<identifier type="PublisherID">ETT</identifier>
<part><date>2000</date>
<detail type="volume"><caption>vol.</caption>
<number>11</number>
</detail>
<detail type="issue"><caption>no.</caption>
<number>4</number>
</detail>
<extent unit="pages"><start>373</start>
<end>382</end>
<total>10</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">D3A48A90ED4A5D6625D18AC3F301E32786DFCDA0</identifier>
<identifier type="DOI">10.1002/ett.4460110406</identifier>
<identifier type="ArticleID">ETT4460110406</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2000 John Wiley & Sons, Ltd.</accessCondition>
<recordInfo><recordContentSource>WILEY</recordContentSource>
<recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin>
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