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Introduction to Multimedia Networking (1)

Advanced Multimedia. Introduction to Multimedia Networking (1). University of Palestine Eng. Wisam Zaqoot October 2010. Ref: Multimedia Networking From Theory to Practice. Introduction to Multimedia Networking. In the last few years, many advances were achieved in:

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Introduction to Multimedia Networking (1)

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  1. Advanced Multimedia Introduction to Multimedia Networking (1) • University of Palestine • Eng. Wisam Zaqoot • October 2010 Ref: Multimedia Networking From Theory to Practice

  2. Introduction to Multimedia Networking • In the last few years, many advances were achieved in: • Digital data compression and coding technologies. • Rapid growth in the use of IP-based internet. • the global use of voice over IP (VoIP), which is replacing traditional public-switched telephone networks (PSTNs) • Deployment of last-mile wireline (DSL/ cable/ T1/ fiber optic) and wireless broadband access. • Multimedia applications and uses. • Etc.

  3. Last-mile broadband access Services/Networks Data rates ------------------------------------------------------------------- POTS 28.8–56 kbps ISDN 64–128 kbps ADSL 1.544–8.448 Mbps (downlink) 16–640 kbps (uplink) VDSL 12.96–55.2 Mbps CATV 20–40 Mbps OC-N/STS-N N * 51.84 Mbps Ethernet 10 Mbps Fast Ethernet 100 Mbps Gigabit Ethernet 1000 Mbps FDDI 100 Mbps 802.11b 1, 2, 5.5, and 11 Mbps 802.11a/g 6–54 Mbps

  4. Introduction to Multimedia Networking • The 4 most critical components when studying multimedia networking systems are: • Data Compression (Source Encoding) • Quality of Service (QoS) streaming architecture design issues for MM delivery over best-effort IP nets • Effective dissemination MM over heterogeneous IP wireless broadband networks. • Digital rights management

  5. Paradigm shift of digital media delivery • With the great advances of digital data compression (coding) technologies, traditional analog TV and radio broadcasting is gradually being replaced by digital broadcasting. • With better resolution, better quality, and higher noise immunity, digital broadcasting can also potentially be integrated with interaction capabilities.

  6. People spend more time on the Internet browsing, watching video or movie by means of live or on-demand services, etc. • consumer preferences are changing from traditional TV or radio broadcasts to on-demand information requests, i.e., a move from “content push” to “content pull.”

  7. Internet-based multimedia content is no longer produced by traditional large-capital-based media and TV stations, since everyone today is able to produce multimedia content and publish it to the world. • Do you have a channel on the YouTube ??

  8. Paradigm shift of digital media delivery • two societal trends on paradigm shifts: • a shift from digital broadcasting to multimedia streaming over IP networks. (Digital broadcast : enhanced definition TV (EDTV) and high-definition TV (HDTV) broadcasting, direct broadcast satellite (DBS) and digital video broadcasting (DVB). Streaming over IP: TV over IP (IPTV)) • a shift from wired Internet to wireless Internet. (WLAN or the so-called Wi-Fi standards, third generation (3G) mobiles internet, wireless personal area network (WPAN) using (Bluetooth/UWB/Zigbee), wireless microwave access (WiMAX))

  9. Digital broadcasting is maturing: Region Fixed reception standards Mobile reception standards Europe, DVB-T DVB-H India Australia, Southeast Asia North America ATSC DVB-H Japan ISDB-T ISDB-T one-segment Korea ATSC T-DMB China DVB-T/T-DMB/CMMB

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