نسخة Multimedia.pdf - Chapter 7 Multimedia Networking A...

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7: Multimedia Networking7-1Chapter 7Multimedia NetworkingA note on the use of these ppt slides:We’re making these slides freely available to all (faculty, students, readers).They’re in PowerPoint form so you can add, modify, and delete slides(including this one) and slide content to suit your needs. They obviouslyrepresent alotof work on our part. In return for use, we only ask thefollowing:qIf you use these slides (e.g., in a class) in substantially unaltered form,that you mention their source (after all, we’d like people to use our book!)qIf you post any slides in substantially unaltered form on a www site, thatyou note that they are adapted from (or perhaps identical to) our slides, andnote our copyright of this material.Thanks and enjoy!JFK / KWRAll material copyright 1996-2009J.F Kurose and K.W. Ross, All Rights Reserved
7: Multimedia Networking7-2Multimedia and Quality of Service: What is it?اوطاددةوودةاد:ھ؟multimedia applications:network audio and video(“continuous media”)طتاوطاددة:وتاوادو)"اوطارة"(network provides application withlevel of performance needed forapplication to function.ورااطقوىاداءازملاطق.QoS
7: Multimedia Networking7-3Chapter 7: goalsPrinciplesاوادrclassify multimedia applicationsrفطتاوطاددةridentify network services applications needrارفاتطتدتاrmaking the best of best effort servicerادةنأﺿلدProtocols and Architecturesrspecific protocols for best-effortrmechanisms for providing QoSrarchitectures for QoS
7: Multimedia Networking7-4Chapter 7 outline7.1 multimedia networkingapplications7.2streaming stored audioand video7.3making the best out ofbest effort service7.4protocols for real-timeinteractive applicationsRTP,RTCP,SIP7.5providing multipleclasses of service7.6providing QoSguarantees
7: Multimedia Networking7-5MM Networking ApplicationsطتتMMFundamental characteristics:اتار:rtypicallydelay sensitiverدةؤديإرسmend-to-end delaymdelay jitterrloss tolerant: infrequent lossescause minor glitchesrلار:ارراررةبلطrantithesis of data, which are lossintolerantbut delaytolerant.rضات،الارةورل.Classes of MM applications:تطتMM:1) stored streaming1(ادقازن2) live streaming2(اثار3) interactive, real-time3(اوتاJitteris the variabilityof packet delays withinthe same packet streamJitterھونراترازمدالازمل
7-6Streaming Stored Multimediaدقاوطا

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Term
Spring
Professor
Kubiatowicz
Tags
multimedia networking

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