1 / 15

Enhancing Quality of Service in Broadcast Networks: Addressing Latency and Compression Challenges

This document discusses the critical aspects of Quality of Service (QoS) in television broadcasting, focusing on the impact of compression factors and latency issues. It explores the trade-offs between different encoding techniques such as 4:2:2 and 4:2:0, examining how data chunking, buffering, and entropy coding affect video quality and information loss. The content caters to both on-demand and live streaming scenarios, emphasizing user control over media consumption. It also touches on advancements in network technologies like DVB and IPTV for improved service delivery.

maya
Télécharger la présentation

Enhancing Quality of Service in Broadcast Networks: Addressing Latency and Compression Challenges

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. IEX8175 RF Electronics Avo Otstelekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst.avo.ots@ttu.ee

  2. QoS

  3. Problem

  4. TV studio Kaamera juht- seade SDI vastu- võtja SDI saatja

  5. Halvem kvaliteet Halvem kvaliteet Pakkimise tegur Pakkimise tegur Parem kvaliteet Parem kvaliteet Keerukus Latentsus Quality

  6. Edastuse juhtimine Kvanditud andmed Täis-kiiru-segaandmed Teisendus4:2:2 -> 8-bit 4:2:0 DCT Kvan-timine Entroopiakodee-rimine Puhver Pakitudandmed Info kadu. Andme-hulkvähenes. Poleinfo kadu. Andme-hulksama. Andme-hulkvähenes (info kadu) Andme-hulkvähenes (pole info kadu) MPEG

  7. Pay TV program ˇ Free TV program Content Download Streaming On-demand Carousel Non-live Live Clips Video on-demand Push and store Subscription

  8. Broadcast, DVB-H MBMS, 3G, LTE IPTV, 3G, LTE Unicast, 3G, LTE Mobile Network Fixed Network Mobile Network Mobile Network Broadcast Network Streams

  9. IP Datacast (data broadcasting)

  10. Protocols

  11. DVB Multiplexer -For LP MPEG-2 LP MUX • DVB-H Time Slice Terminal • Support for Time Slicing • Power saving MPEG-2 TV Service e MPEG-2 TV Service HP MPEG-2 TV Service MPEG-2 TV Service • Full DVB-H Terminal • Support both TS and MPE-FEC • Power saving and performance DVB-H IPE -Time Slicing -MPE-FEC IP-backbone • DVB-T Tx • DVB-H signalling DVB-T & DVB-H

  12. Audio Programm 1 Video PTS/DTS Audio Programm 2 Video MUX PTS/DTS Transpordivoog Transport stream Audio Programm 3 Video PTS/DTS PAT PMT NIT Multipleks

  13. New media divide • Kasutajad haldavad oma meedia kasutust. • “Minu aeg” (mitte reaalaeg) on kõige kiiremini kasvav meedia kasutus. • “I want what I want, when I want it, the way I want it.” • Reaalaeg vs “minu aeg” Real-time vs. “my time.”

  14. Provider Provider Networks In-home Network In-home Network TV-Anytime Gateway PVR removable media Networks PVR NDR Gateway control/content control DVD service providerscontent providers storage

  15. ISDB-BML content manager web-DVD Pictures discs Video editing EPG OCAP PVR Memory Card Internet Browsing MHP Picture Browsing MHEG Operating System and UNIVERSAL HOME API streaming A/V software streaming A/V software streaming A/V software streaming A/V software Architecture 3 … Architecture 1 Architecture 2 Architecture 4 Company C Company A Company B Company D Universal Home API • Application portability over multiple HW/SW platforms • Open Source implementation: UHAPI4Linux

More Related