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Wireless Multimedia Delivery over 3G Networks

Jan 18, 2016




Wireless Multimedia Delivery over 3G Networks. Greg Leah C SC 461. 3G. third generation wireless services offers high data rate content delivery to mobile devices cellphones PDA’s enables multimedia applications such as: live TV video/audio streaming video conferencing web surfing. - PowerPoint PPT Presentation

  • Wireless Multimedia Delivery over 3G Networks

    Greg LeahC SC 461

  • 3Gthird generation wireless servicesoffers high data rate content delivery to mobile devices cellphonesPDAsenables multimedia applications such as:live TVvideo/audio streamingvideo conferencingweb surfing

  • Cellular Technologiesall are different methods of sharing a radio channelall have concept of multiple access implies sharing available frequency range with multiple users

  • Frequency Division Multiple Access (FDMA)frequency is divided between userseach user is allocated a different carrier frequency of the radio spectrum

  • Time Division Multiple Access (TDMA)users share the same frequency by using alternating time slots

  • Code Division Multiple Access (CDMA)data is broken into uniquely identified packets and transmitted over multiple frequenciesuses unique codes to identify connections and reassemble messagesevery user uses the entire spectrum all of the timeallows most efficient usage of frequency spectrum

  • Wireless Services History1Goffered analog voice onlyuses Frequency Division Multiple Access (FDMA)offered data rates of approximately 9600 bps

  • Wireless Services History2Gdigital voice and digital datadigital data applications: text messaging, streaming audio, & electronic publishingimplemented circuit switching technologyuses TDMA (Time Division Multiple Access) and CDMA (Code Division Multiple Access)peak data rate: 14.4 kbps

  • Wireless Services Historymigration from 2G to 2.5G to assist carriers with upgrading infrastructure transition to 3G2.5Gvoice and data transmissionenhanced data rates and packet data servicesadopted packet-switching technologypeak data rate: 115 kbps

  • Wireless Services History3Gcombination of circuit and packet switching technologieshigh data rates in addition to voice transmissionable to achieve data rates between 307 kbps to 2.4 Mbps

  • 3G TechnologyWideband Code Division Multiple Access (W-CDMA)Code Division Multiple Access 2000 (CDMA2000)Time Division-Synchronous Code Division Multiple Access (TD-SCDMA)

  • Wideband Code Division Multiple Access (W-CDMA)leading global 3G standard2 sub standards based on CDMA technology:Freedom of Mobile Multimedia Access (FOMA)worlds first commercial W-CDMA servicedeveloped in Japan by NTT DoCoMo Universal Mobile Telephone System (UMTS)mainly used in countries that use GSM (Europe)

  • CDMA2000second generation of CDMA digital cellular technologyoutgrowth of 2G CDMA, but still backwards compatiblesubstandards:CDMA2000 1x, CDMA2000 1xEV-DO, and CDMA2000 1xEV-DV EV-DO Evolution-Data-OnlyEV-DV Evolution-Data-Voicemain 3G technology used in Canada and the United States

  • Time Division-Synchronous Code Division Multiple Access (TD-SCDMA)uses a combination of TDMA and CDMAdeveloped and used in China only in an attempt to develop home-grown technology and not be "dependent on Western technology" for 3G services

  • Main Challengesdeveloping reliable protocols to ensure high data rate transmission to mobile devicesdeveloping protocols for pervasive networks to allow handoff between heterogeneous network types

  • Implementationcontent providers all over the world have been rolling out 3G networks for a couple years nowin Canada:Bell and Telus introduced 3G services in late 2005Rogers started offering live TV through MobiTV in April 2005

  • 3G Handsetsworldwide drive to implement 3G networks is creating demand for more sophisticated handsets

  • Panasonic 3G Handset

  • Nokia 3G Handset

  • Motorolas Vodaphone 3G Handsets

  • The Future: 4GJapanese company NTT DoCoMo is testing 4G communication at 100 Mbps while moving, and 1 Gbps while stationaryplans to roll out in 2010 will be based strictly on packet-switched technology only while 3G is a combination of packet- and circuit-switching

  • The Future: 4Gpervasive networkshypothetical concept where users can be handed off using heterogeneous wireless technologiese.g. cellphone uses WiFi or WiMax when available, then hands off to UMTS or another cellular technology

  • Why I think 3G is coolvideo delivery to cellphones is a huge marketprojections in multiple billions of dollarsmobile video conferencing is also a cool technology

  • The Endquestions?