LinkedIn emplea cookies para mejorar la funcionalidad y el rendimiento de nuestro sitio web, así como para ofrecer publicidad relevante. Si continúas navegando por ese sitio web, aceptas el uso de cookies. Consulta nuestras Condiciones de uso y nuestra Política de privacidad para más información.
LinkedIn emplea cookies para mejorar la funcionalidad y el rendimiento de nuestro sitio web, así como para ofrecer publicidad relevante. Si continúas navegando por ese sitio web, aceptas el uso de cookies. Consulta nuestra Política de privacidad y nuestras Condiciones de uso para más información.
Telecommunication Channelatmosphere for sound communications, glass optical fibers for some kinds of optical communications, coaxial cables for communications by way of the voltages and electric currents in them, andfree space for communications using visible light, infrared waves, ultraviolet light, and radio waves.
Technologies in fixed wire lineAnalog 56 Kbps – Analog normally known as dial-up internet which is used through normal telephone system and that is the time where internet was introduced to the world.ISDN 128 Kbps – Later Integrated Services Digital Network (BRI) connections are delivered over the same telephone cable with 128 Kbps speed.ADSL 256 Kbps - Asymmetric Digital Subscriber Line technology which was commonly reffered as the first broadband connectivity over copper wire.ADSL Lite 1.5 Mbps – Asymmetric Digital Subscriber Line Lite which offers maximum of 1.5 Mbit/s downstream and 512 kbit/s upstream and does not require the use of phone line splitters.ADSL2 12 Mbps – ADSL 2 extends the basic technology of ADSL, where the data rates extends to 12 Mbit/s downstream and 3.5 Mbit/s upstreamADSL2+ 24Mbps - ADSL2+ extends capability of ADSL by doubling the number of downstream bits. The data rates can be as high as 24 Mbit/s downstream and upstream 1.3 Mbit/s. But ADSL 2+M can handle 3.3 Mbit/s upstreamVDSL2 250 Mbps – Very high speed digital subscriber line 2 (VDSL) VDSL2 is the latest and advanced standard of DSL broadband wireline communication, which can handle 250 Mbit/s. VDSL2 will work fine when the telephone exchange is very near in the distance of (0.5)KM.PON – Passive optical network is a point to multi-point fiber network, which can handle 2.488 Gbit/s of downstream bandwidth, and 1.244 Gbit/s of upstream bandwidth.Mobile CommunicationGSM – Global System for Mobile Communications normally used in 2G communication which can handle voice codecs in the full rate of 13 kbit/s speed.GPRS – General packet radio service which offers around 32-40 kbit/s speed depending on the mobile phone.EDGE - Enhanced data rate for GSM evolution which can carry bandwidth up to 236.8 kbit/sWCDMA – Wideband code division multiple access which can carry bandwith up to 384 Kbit/sHSPA – High speed packet access is an combination of two mobile telephony protocols, High Speed Downlink Packet Access and High Speed Uplink Packet Access that extends and improves the performance of existing WCDMA protocols, which is commonly known as 3G.
1G: First Generation Cellular PhonesIn the 1970s, the First Generation, or 1G, mobile networks were introduced. Cell phone signals were based on analog system transmissions, and 1G devices were comparatively less heavy and expensive than prior devices. Some of the most popular standards deployed for 1G systems were Advanced Mobile Phone System (AMPS), Total Access Communication Systems (TACS) and Nordic Mobile Telephone (NMT). The global mobile phone market grew from 30 to 50 percent annually with the appearance of the 1G network, and the number of subscribers worldwide reached approximately 20 million by 1990.2G: GSM and GPRS NetworksIn the early 1990s, 2G phones deploying GSM (Global System for Mobile). GSM uses digital modulation to improve voice quality but the network offers limited data service. As demand drove uptake of cell phones, 2G carriers continued to improve transmission quality and coverage. The 2G carriers also began to offer additional services, such as paging, faxes, text messages and voicemail. The limited data services under 2G included WAP, HSCSD and MLS.An intermediary phase, 2.5G was introduced in the late 1990s. It uses the GPRS standard, which delivers packet-switched data capabilities to existing GSM networks. It allows users to send graphics-rich data as packets. The importance for packet-switching increased with the rise of the Internet and the Internet Protocol, or IP. The EDGE network is an example of 2.5G mobile technology.Recent 3G NetworksThe 3G revolution allowed mobile telephone customers to use audio, graphics and video applications. Over 3G it is possible to watch streaming video and engage in video telephony, although such activities are severely constrained by network bottlenecks and over-usage. 3G phone speeds deliver up to 2 Mpbs, but only under the best conditions and in stationary mode. Moving at a high speed can drop 3G bandwidth to a mere 145 Kbps.High-Speed 4G Mobile NetworksThe current generation of mobile telephony, 4G has been developed with the aim of providing transmission rates up to 20 Mbps while simultaneously accommodating Quality of Service (QoS) features. QoS will allow you and your telephone carrier to prioritize traffic according to the type of application using your bandwidth and adjust between your different telephones needs at a moment's notice.Only now are we beginning to see the potential of 4G applications. They are expected to include high-performance streaming of multimedia content. The deployment of 4G networks will also improve video conferencing functionality. It is also anticipated that 4G networks will deliver wider bandwidth to vehicles and devices moving at high speeds within the network area.
there is also an increasing number of broadband service providers via online cable or satellite connections in Mozambique. The more providers, the better for the consumers!
Multimedia Impact on Network & Telecommunication
I ndi vi dual Pr esent at i on Sem nar i Multimedia and its impact on Network and TelecommunicationsPr esent ed by : U Ai nur r of i q [I D 1111200141] unC se our : M t i m a I nf osys BM 7094 ul edi ILect ur er : Pr of . D . M al i R an r ur am August 2012
Our session today will cover :• What is Multimedia? Network and Telecommunication?• The History of Interdependency• Current Trend• What’s The Next Big Thing?• Discussion
Term DefinitionMultimedia = integration of multiple forms of media. Thisincludes text, graphics, audio, video, etcTelecommunications = the exchange ofinformation over significant distances by electronic means.Network = collection of terminals, links and nodes whichconnect together to enable telecommunication
Teleommunication Channel & Medium Sound Cable (Atmosphere) (Electro Voltage) informations informationsTransmiter Radio Wave Optical Fiber Receiver/Sender (Free Space) (Glass) The advancement on the channel technology has empower faster network with much bigger capacity Cable (up to 200Mbps) radio (up to 1Gbps) Optic (up to 10Gbps)
The History of InterdependencyMultimedia Needs & Availability Network & Telecommunication Technology
Multimedia Availability Voice + Data + Video 4G *available in high speed IP Based Mobility Very High Data Rate Telecom Convergence Voice + Data + Video 3G + Video Call Seamless Roaming + Video Streaming Global Radio Access High Data Rates Voice + Data + SMS & MMS 2G + Browsing (in 2.5G) Advanced Mobility Data Service Voice Only 1G Digital System Basic Mobility Call Basic Service Analog System Cellular Telecommunication Evolution
The WEBOLUTIONSource : Radar Networks & Nova Spivack, 2007
Current Trends The mobile phones has become one of the most intimate ICT devices ever known Mobile Multimedia Handsets can be, in a right atmosphere, content creation tools for handset owners as well as contact points to the Internet services. Growth of citizen journalism through use of camera phones and moblogging, all human activities susceptible of being recorded The use of the mobile Internet is driving mobile device growth exponentially faster than any previous computing technology.
Internet Speed Q1/2012Source : “State of the Internet” Akamai Report 2012
Figures from THE ECONOMIST print edition | Special report: http://www.economist.com/node/21530920
Content & Apps Business are growingGoogle I/O Conference
the next BIG things Phone-TV- Interactive Computer Television ConvergenceInternet on TV on Youryour Car Phone, Your Phone on TV Electronic ID Phone on Phone Numbers for Life
Multimedia, Network and Telecommunication has a history of interdependency and they continue to gear up each other for the Better advancement in order to Handset reveal the next big thing in human life Faster NetworkKey Intense User ActivityTakeaway