On Next Generation Networks and Applications

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On Next Generation Networks and Applications. Wen-Tsuen Chen Department of Computer Science National Tsing Hua University June 13, 2005 Presented in IDPT 2005, Beijing. Outline. Milestones of Networks Internet Applications Switched networks Wireless networks Next Generation Networks - PowerPoint PPT Presentation


<ul><li><p>On Next Generation Networks and Applications Wen-Tsuen ChenDepartment of Computer ScienceNational Tsing Hua UniversityJune 13, 2005</p><p>Presented in IDPT 2005, Beijing</p></li><li><p>OutlineMilestones of NetworksInternet ApplicationsSwitched networksWireless networksNext Generation NetworksNext Generation ApplicationsSome Research ResultsConclusions</p></li><li><p>Arpanet introduced in 1969TCP/IP, by V. Cerf and R. Kahn, in 1974Ethernet, by R. M. Metcalfe et al., in 1976Cellular telephones in 1978PC introduced in early 1980sProliferation of LANs and hence the Internet in mid 1980sMosaic browser in 1993 and World-Wide Web Consortium in 1994Milestones of Networks</p></li><li><p>Internet ApplicationsGenesis to Early 80sEmail, ftp, telnetLate 80sNews, bbs, distributed and parallel computingEarly 90sGopher, WWW, hypertextLate 90sOn-line game, auction, stock quotes, sports, horoscopes, headlines, weather, video conference, Internet TV, VPN, VoIP, P2PEarly 00sMobile VoIP, mobile VPN, location-based service, MMS </p></li><li><p>Internet TrendsToday's Internet will evolve into the dominant network delivering all forms of data, voice, and video to anyone anywhere at anytime.Handset will evolve as the major device for computing and communications.Everyone will use Internet.Infotainment will be one of the major applications.</p></li><li><p>Everything over InternetVoIPFAXTVBroadcast</p><p>Net surfing by handset, PDA, home appliancesShoppingInternet TV: GoToWatch</p></li><li><p>Switched Network</p></li><li><p>Switched NetworkTransmitting data from source to destination through intermediate switching nodesSwitching nodes are not concerned with the content of the dataSwitching nodes move data from node to node until they reach their destinations</p></li><li><p>Packet SwitchingData are transmitted in blocks, called packetsLong message is broken up into a series of packetsPacketheader: control informationpayload: dataAt each switching node, the packet is received, stored, and passed on to the next node</p></li><li><p>Peer-to-peer networkingClient/server vs. peer-to-peerNapster, Gnutella, Kazaa, BitTorrent70% of the traffic on ISP networks&gt;5 billions music files and &gt;5 millions games downloaded in 2003400K ~ 600K movies/daySkype VoIP</p></li><li><p>Evolution of Wireless NetworksPersonal Area Networks (PANs)Wireless Local Area Networks (WLANs)Public wide-area (high-tier) cellular radio systemsMobile Satellite Networks</p></li><li><p>Wireless systems: bit rates vs. coverage areas</p></li><li><p>Personal Area Networks (PANs)Short-range low-power radiosBluetooththree power classes with coverage ranges up to approximately 10 meters, 50 meters, and 100 meters, respectivelysupport bit rates up to about 720 KbpsHomeRFIEEE 802.15support data rates over 20 Mbps</p></li><li><p>Wireless Local Area Networks (WLANs)Typically use the unlicensed Industrial, Scientific, and Medical (ISM) radio frequency bandsISM bands in the United States900-MHz band (902-928 MHz)2.4-GHz band (2400-2483.5 MHz)5.7-GHz band (5725-5850 MHz)IEEE 802.11: the most widely adopted WLAN standard</p></li><li><p>IEEE 802.11A family of standards that defines the physical layers (PHY) and the Media Access Control (MAC) layerIEEE 802.11: infrared (IR) radio frequency (RF) in the 2.4-GHz ISM band1 or 2 MbpsIEEE 802.11b: 11 Mbps in the 2.4-GHz ISM bandIEEE 802.11a: 54 Mbps in the 5.7-GHz ISM bandIEEE 802.11g: 54 Mbps in the 2.4-GHz ISM bandIEEE 802.11i: securityIEEE 802.11e: QoS (quality of service)IEEE 802.11f: Inter Access Point Protocol (IAPP)</p></li><li><p>Public WLANsProvide significantly higher data rates than wide-area wireless networksCould take advantages of both WLAN and wide-area radio technologies to create new services and reduce networking costsPublic WLANs are the first wave of all-IP radio access networksNew and innovative business models for providing public mobile services</p></li><li><p>Worldwide WLAN sales</p></li><li><p>1G Wireless NetworksBecame commercially available in the early 1980sAnalog radio technologies and circuit-switched transmission and networking technologiesMain service: circuit-switched voiceLack the ability to support roaming between different network operatorsThree main 1G radio system standardsAdvanced Mobile Phone Systems (AMPS) in North AmericaTotal Access Communications Services (TACS) in the United KingdomNordic Mobile Telephone (NMT) in Nordic countries</p></li><li><p>2G Wireless NetworksEmerged in the early 1990sDigital signal processing and transmission technologies (increased radio capacity and spectrum utilization, enhanced voice quality, reduced power consumption, etc.)Standards for core networksIn addition to circuit-switched voice, enabled the first waves of mobile data and mobile Internet services</p></li><li><p>3G Wireless NetworksSignificantly increase radio system capacities and per-user data rates over 2G systemsSupport IP-based data, voice and multimedia servicesEnhance quality-of-service (QoS) supportImprove interoperability</p></li><li><p>Fundamental Principles of 3GCore networks will be based on IP technologiesEvolutionary rather than revolutionary</p></li><li><p>Evolution of network technologies from 1G to 3G</p></li><li><p>Wireless IP network supporting heterogeneous radio technologies</p></li><li><p>IP-Based Wireless NetworksThe core network will be based on IP technologies.A common IP core network will support multiple types of radio access networks.A broad range of mobile voice, data, and multimedia services will be provided over IP technologies to mobile users.IP-based protocols will be used to support mobility between different radio systems.All-IP radio access networks will increase over time. The first all-IP radio access networks that have emerged in public wireless networks are public WLANs.</p></li><li><p>Evolution of Public Mobile Services &amp; ApplicationsFirst Wave of Mobile Data Services: Text-based Instant MessagingSecond Wave of Mobile Data Services: Low-Speed Mobile Internet ServicesCurrent Wave of Mobile Data Services: High-Speed and Multimedia Mobile Internet Services</p></li><li><p>First Wave of Mobile Data Services: Text-based Instant MessagingSMS (Short Message Services)provided over the completely circuit-switched 2G networksdelivered using Mobile Application Part (MAP) in GSM networksSMS allowed mobile users to become familiar and comfortable with mobile data services</p></li><li><p>Second Wave of Mobile Data Services: Low-Speed Mobile Internet ServicesInteractive and information-based mobile Internet servicesi-Mode: launched by NTT DoCoMo over PDC in February 1999emails and instant messagescommercial transactionsdirectory servicesdaily informationentertainment</p></li><li><p>Growth of i-Mode Subscribers</p></li><li><p>i-ModeMost successful mobile data service3 million subscribers at the end of 199917 million subscribers at the end of 200030 million subscribers at the end of 200133.5 million subscribers at the end of 1st Quarter of 2002Running on 9.6 kbps packet data capability in PDC networks</p></li><li><p>i-Mode ServicesSending and receiving email/messageTransaction: banking, ticket reservation, credit card bill inquiry, trading, etc.Database: dictionary, restaurant guide, mobile telephone directory, mobile recipes, etc. Daily information: news, weather reports, transportation information, town information, etc.Entertainment: Karaoke, FM on-air information, network games, horoscope, etc.</p></li><li><p>Current Wave of Mobile Data Services: High-Speed and Multimedia Mobile Internet ServicesCamera phonesMultimedia Messaging Services (MMS)Networked gamingLocation-based servicesStreaming videos to mobile devicesVehicle information systems</p></li><li><p>Evolution of mobile services</p></li><li><p>Motivations for IP-Based Wireless NetworksIP-based wireless networks are better suited for supporting the rapidly growing mobile data and multimedia services.IP-based wireless networks bring the successful Internet service paradigm to mobile providers and users.IP-based wireless networks can integrate seamlessly with the Internet.IP-based radio access systems are becoming important components of public wireless networks.IP technologies provide a better solution for making different radio technologies transparently to users.</p></li><li><p>Growth of mobile voice and non-voice services</p></li><li><p>Source: Telecompetition Inc., February 2001</p></li><li><p>Terminals</p></li><li><p>Terminals (cont.)</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Terminals (cont.)Source: Qualcomm</p></li><li><p>Next Generation ApplicationsElectronic CommerceDistance EducationDigital LibrariesWebcastingTelemedicineCollaborative Research</p></li><li><p>Next Generation NetworksHigh bandwidthQuality of Service supportMobility supportSecurityNetwork management</p></li><li><p>Some Research Results Project on Next Generation Information Networks and ApplicationsFirst Phase: April 2000 ~ March 2004Second Phase: April 2004 ~ March 2008Total Budget: US$ 20 MillionsMore than 30 professors and 200 graduate students from National Tsing Hua Univ. and National Chiao Tung Univ. involved </p></li><li><p>Project GoalsKey technologies for next generation information networks and applicationsThree main focuses</p></li><li><p>Transportation AnalogyBackbone Network(Core Network)Metropolitan(Local Network)Intersection(router)Local RouterCore Router</p></li><li><p>Mount Jade to Hsinchu CityWirelessNetwork</p></li><li><p>Applications and Services</p></li><li><p> Mobile usersNetwork</p></li><li><p>Focus INetwork Core TechnologiesSwitching Technology</p></li><li><p>1. High-speed SwitchProposed a high-speed switching architecture based on Birkhoff-von Neumann network100% maximum throughputwidely referenced in course materialsA prototype 8 x 8 switch with capacity of 64 Gbps implemented with .13um IC technology Adopted by Stanford team to design 100Tb/sec switches</p></li><li><p> 2. Expandable High-speed Service RouterHigh-speed backplane (16 Gbps)Service Modules (Gigabit Ethernet)Bandwidth managementNetwork security moduleContents filteringMobility management</p></li><li><p> GE URL Filtering system has been deployed in 16 GigaPoP</p></li><li><p>Focus IIWireless TechnologiesHeterogeneous Mobile networkingRoaming, QoS, and Security</p></li><li><p>Integrated Mobile Comm. SystemMobile ManagementQuality of ServiceSecurity Authentication WLANsMANETsInternetCellular Network</p></li><li><p> 1. Mobile and Routing TechnologiesRoaming between GPRS and WLANAdopted by Taiwan Cellular Co.Integrated PHS/GPRS and Ad Hoc NetworksIndoor and outdoor positioning and services</p></li><li><p>Integrated PHS/GPRS and Ad Hoc NetworksTwo-tier architectureMobile routersSeamless handoff (Mobile IP support)</p><p>Comm. Tower</p><p>Laptop</p><p>PDA</p><p>Cloud</p><p>q</p><p>PHSBaseStation</p><p>GPRSBaseStation</p><p>Internet</p><p>802.11AccessPoint</p><p>PHSHandset</p><p>GPRSHandset</p><p>PDA</p><p>PDA</p><p>PCS Core Network</p><p>Ethernet</p></li><li><p>2. Security AuthenticationIntegrated authentication for WLAN and GSM/GPRSWLAN users use SIM card for authentication</p></li><li><p>Focus III: Systems and ApplicationsMulti-Modal searching in the Internet</p></li><li><p> 1. Intelligent Poem reading and LearningWeb station for stories appearing in poems of Tang Dynasty () 9698 stories in the webData representationsStory markers </p></li><li><p>Different modes of accessWireless PDA: access according to Number of strokes Name of origin</p></li><li><p> By Sound:By Meaning: </p></li><li><p> 2. Multi-modal multimedia searchingSearching a filmInputSearching an imageoutput</p></li><li><p>Searching a movie </p></li><li><p>Searching a songMulti-modal music searching engine: Catalog, name of song, a piece of song, rhythm of song, or even just sequence of beatsFirst prize of Microsoft .NET &amp; XMLWeb Service competition in Taiwan, second prize in Asia (20022003)World first 8/16-bit microprocessor-based platform for rhythm recognition</p></li><li><p>3. Network ServicesWebsite for aborigines: Distinguished Teaching and Service to Aborigines awarded by the 3rd International Conference on Information Literacy and Life Long Learning SocietyEnglish Translation of the contents of the website by the Ministry of Education</p></li><li><p>Aborigines Culture HeritageServices of the Website:On-line registration Itinerary PlanningTour guiding with PDAs On-line postcards Computer Education for K to 12 studentsAlleviate social divide Training culture and science boy/girl tour guides </p></li><li><p>Conclusions Vision for the Next Generation Internet: In the 21st Century, the Internet will provide a powerful and versatile environment for business, education, culture, and entertainment. Sight, sound, and even touch will be integrated through powerful computers, displays, and networks. People will use this environment to work, bank, study, shop, entertain, and visit with each other. </p></li><li><p>Whether at the office, at home, or on travel, the environment will be the same. Security, reliability, and privacy, will be built in. The customer will be able to choose among different levels of service with varying prices. Benefits of this environment will include a more agile economy, a greater choice of places to live and work, easy access to life-long learning, and better opportunity to participate in the community, the Nation, and the World.</p><p>Evolution of wireless network technologies.Source: NTT DoCoMoIn February 1999, NTT DoCoMo launched the i-Mode service. It is an interactive, information-based, mobile Internet service. It is supported through the 9.6 kbps packet data capability in the PDC (Personal Digital Cellular) networks. Though data rate is lower than that offered by competitors, it gets more subscribers than the competitors, partly because it offers a larger variety of services and applications (more than 5800 specially formatted Web sites available). The number of i-Mode subscribers reaches 3 million at the end of 1999, over 4 million in February 2000, and over 5 million in March 2000. On the other hand, the number of subscribers to DDI and IDOs WAP services combined reached only 1 million in March 2000, though their data rate is higher (CDMA 14.4 kbps circuit-switched data since April 1999 and IS-95B 64 kbps packet data available since January 2000). The services offered in i-Mode include: Email and messaging Transaction - mobile banking, ticket reservation (airlines, concerts, etc.), credit card bill inquiry, mobile trading Entertainment - Karaoke, FM on-air information, network games, fortune-telling Database - restaurant guide, mobile telephone directory, mobile recipes, dictionary Other information - news, weather reports, transportation information, town information, rental openingsHandsets with color LCD (256 colors) are also available.The techniques to interwork between the wireless network and the Internet in i-Mode and WAP are similar (i.e., through a gateway and wireless-specific web sites), though i-Mode has its own set of protocols different from the WAP standards.Evolution of wireless network technologies.Terminal will play an important role in 3G because many new services in addition to traditional voice are expected to run in small handset. The is an working group in 3GPP specifically for terminal.Terminal in glassesTerminal in keyTerminal in makeup</p></li></ul>


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