Trend of Mobile and Wireless Communication Technologies by broverya76

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									        Trend of Mobile and Wireless
        Communication Technologies
                Iwao Sasase, Keio University




http://www.sasase.ics.keio.ac.jp
 Email sasase@ics.keio.ac.jp

Prof. Iwao Sasase, Keio University
                             Outline
• Trend of Mobile and Wireless
  Communications
• Advanced Information Technology
• To Produce Break-Through Technology
• Education and Supervision
• Introduction of Our Research Activities


Prof. Iwao Sasase, Keio University
                      Mobile Phone Subscribers
                                                                            51141

                                                                       41530
 No. of Subscribers




                                                                   31528

                                                               20876

                                                           10204
                                                    4331
                       242 489 868 1378 1712 2131

                      1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000




Prof. Iwao Sasase, Keio University
                      i Mode Service
                                       Daily Life
 Dealings
                                       News
 Mobile Banking
                                       Weather Forecast
 Airline/Train Ticket
                                       Stock Market
 Reservation

  Database
                                      Entertainment
  Restaurant Guide                   Fortunetelling
  Train Information                  Game
  Dictionary                         Character Delivery
Prof. Iwao Sasase, Keio University
Trend of Mobile Communications

•   Business Use                         •   Personal Use
•   Mobile & Fixed Phone                 •   Terminal for Everyone
•   Voice and Email                      •   Data and Internet
•   Payment by Hour                      •   Fixed Amount Payment
•   Value Added Service                  •   Content, Applications
•   Multiple Functions                   •   Specified Functions



    Prof. Iwao Sasase, Keio University
Drastic Change in Communication
 • Increase of the Internet Traffic
 • Dominant IP-based Data
 • Advanced Network Infrastructure
 • Technological Innovation•i CPU Power and
   Memory are 4 Times Every 3 Years•j
 • New Service (Electronic Commerce)
 • Broadband Access Network, Wireless

 Prof. Iwao Sasase, Keio University
        Impacts in Network Society
                                      1•
                           Year ‚Q‚O‚O `

•   Social value driven
•   Value in Virtual Network Society
•   Contents, Multi-Media, Multi-Culture
•   Security is Essential
•   Personal and Customized (Individual)
•   Open and International (Enterprise)

    Prof. Iwao Sasase, Keio University
Advanced Information Technology
  • All Information is in Digital Formats
  • Networking for Everything
  • Seamless Wireless Communications
  • Merged Broadcasting & Communication
  • Contents Downloading (Newspaper,
    Book, Music, Video, Picture, Game)
  • Friendly Human Interface

 Prof. Iwao Sasase, Keio University
               Advanced Broadband Communications
               Advanced Broadband Communications
 Mobility
                                                       Broadband wireless
   High                                                communication


             2G         3G                   4G

Medium      GSM
            IS54     WCDMA               Broadband
            PDC      cdma2000              mobile
                                       communication
   Slow
                Wireless LAN 1G         Wireless LAN 2G
                 IEEE 802.11b           IEEE 802.11a, MMAC   Fixed•@ wireless
  Fixed                                                      access

            10kbps        2Mbps        10Mbps          100Mbps
                                      Data rate
 Prof. Iwao Sasase, Keio University
    Market in Personal Communications                                                    ome L
                                                                                               in
                                                                                  less H
                                                                            Wire           N
                                                                                      s LA
Market                                                100-150 Mbps
                                                                                r eles
                                                                           d Wi
                                                                     S pee
                                                              H ig h         N
                                                                        s LA
                                                                 r eles                          d
                                                              Wi                           ltime
                                                                                     le Mu
                                                                                 obi
                                                                   2Mbps
                                               40 Mbps                        M
                                                                        L and
                    2 Mbps                                     Pu blic
                                             100-300 kbps
             10-30 kbps
                                                               Voice
             10-15 kbps         Half rate        Full rate



                    ‚P‚X T                  ‚Q‚O‚O‚O              ‚Q‚O‚O‚T


    Prof. Iwao Sasase, Keio University
         4G Mobile Communication
• High Speed up to 100Mbps, All IP packet Transmission
• Flexible to Advanced Internet •i IPv6, QoS, Mo-IP•j
• High Capacity (More than 24 times in year 2010•j
• Low Cost (Best Effort type, Less than 1/10•j
• Seamless Connections (anywhere and anything
  including wireless LAN, Home link and Bluetooth)
• Seamless Services (adaptive rate, QoS, terminal )
• Only One Personal and Customized Terminal


    Prof. Iwao Sasase, Keio University
                       Wireless Home Networking
                             Wireless 1394
Digital Broadcasting
    Satellite
 Communications




                                ‚ ‚
                                ob
                                                 ‚o‚c‚`         Camera

            Internet
               ‚ ‚` ‚
         IDSN, bsu ,
         ADSL, FTTH                                                           Phone

                              Control Terminal            Wired Bus

                                                                      Audio           Car


                         TV




      Prof. Iwao Sasase, Keio University
      Wireless Home Link
     Scheme          Bluetooth          HomeRF          Wireless 1394
      Frequency   2.4GHz             2.4GHz            5.2GHz
                  •i ISM band•j      •i ISM band•j     •i 25, 40, 60GHz•j
       Bit Rate   720kbps            0.8 •] 1.6Mbps    40 •i•] 400•j Mbps

     Modulation FFHSS                FHSS                OFDM

     Application Mobile Phone        PC,               Mobile Terminal,
                   Mobile Terminal   Mobile Terminal   Audio, TV, PC

   Wireless 1394 has been proposed by TAO Shin-
    kawasaki Research Center in 1997, and
    standardized by ARIB in 2001.

Prof. Iwao Sasase, Keio University
Strategy for New Mobile Communication System
 Promote Standardization Activities          Accelerate R&D activities


                                Key R&D Projects
                ‡@    Broadband Mobile Communications Technology
                ‡A Wireless Ad-Hoc Network Technology
                 ‡B Software Radio Technology
                  ‡C User Oriented Application Technology
                   ‡D Mobile Platform Technology


      Create Platform for New                Promote International
      Application and Market                     Cooperation



   Prof. Iwao Sasase, Keio University
          To Produce Break-Through
                 Technology
•   Encourage to Make New Idea with Originality
•   Creative Research Environment
•   Education on Information Technology
•   Produce Globally Active Human Resources
•   National Strategic Project and Policy
•   Flexible and Open Interchange of Personnel
•   Fair Evaluation for Achievement
    Prof. Iwao Sasase, Keio University
                     Way of Thinking
          Japanese                              Americans
•   Stability-oriented•@                  Challenging Spirit
•   Cooperative•@• •@                     Individual
•   Equal Treatment•@•                    Equal Opportunity
•   Consultation•@•                       Clear Decision Making
•   All-round         •@                  Unique and Special•@
•   No.1         •@                       Only One
•   Steady, Punctual                      Strategic, Aggressive

     Prof. Iwao Sasase, Keio University
      Education and Supervision
•   Updated Lectures in Advanced Course
•   Encourage to Achieve Leadership
•   Emphasize the Originality of Idea
•   Respect Individuality and Ability
•   Encourage to Challenge and Change
•   Master English and Computer as Tools
•   Promote Project-based Research

Prof. Iwao Sasase, Keio University
                 •@ Research Areas at Sasase Lab.

             Mobile and                       Communication Networks
      Wireless Communications
    Mobile comm., Personal comm.,                Optical CDMA, WDMA,
  W-CDMA, Satellite comm., Ad-hoc                 Photonic Networking,
   Comm., Infrared, Smart antenna,               Multi-cast switch, ADSL,
            Wireless 1394...



      Communication Systems /                     Signal Processing /
        Information Theory                        Non-linear Circuits

  Digital modulation & demodulation,        Non-linear Amplifier, Radar signal
 Com. Protocols, Interference canceller,    processing, Chaos, Power supply for
Trellis coded modulation, Queuing theory,     com. systems, Neural network...
  Coding theory, Optical com. Theory...



  Prof. Iwao Sasase, Keio University
        Members at Sasase Lab.
•   Professor Iwao Sasase
•   Ph.D. Course 3rd year students •@    3
•   Ph.D. Course 2nd year students       1
•   Ph.D. Course 1st year students       1
•   Master Course 2nd year students     10
•   Master Course 1st year students      6
•   Under Graduate 4th year students     6
                         Total          28
Prof. Iwao Sasase, Keio University
Main Research Topics at Sasase Lab.
•   Broadband Mobile Communications
•   Ad-Hoc Wireless Communications
•   Wireless Home Link (Wireless 1394)
•   Optical CDMA and WDMA
•   Photonic Networks and Multicast Switches



 Prof. Iwao Sasase, Keio University
                Policy of Sasase Lab.
• Emphasize Originality and Challenging Spirit
• Give Equal Chance Depending on the Talents
• Encourage to Submit and Present Papers to
  Journal and International Conferences
• Educational Advising through Research
• Find Research Topic and Idea by Yourself
• Encourage to Enter Ph.D Course
• Freedom and Responsibility
 Prof. Iwao Sasase, Keio University
    Achievement in Recent 6 Years
       40
                                                                Journal
       30                                                      Papers
                                                               International
       20
                                                               Conference
       10                                                      Technical
                                                               Respots
         0
                96 97 98 99                  0      1
All the post graduate students have presented their papers at international
conferences.
More than 90% of the post graduate students have been published as transaction
papers.
     Prof. Iwao Sasase, Keio University
                                           Publications
                                                                 •@
                   300
                                                                                   Journal
Number of Papers




                   250                                                             papers
                   200                                                             Int. Conf
                                                                                   Papers
                   150
                                                                              173 Journal Papers
                   100
                                                                              263 International
                                                                                  Conference
                    50                                                            papers

                     0                                                         April 6, 2002
                         83 85 87 88 89 90 91 92 93 94 95 96 97 98 99 0   1
                                             Year•@


                   Prof. Iwao Sasase, Keio University
Degree of Graduates at Sasase Lab.
              8%
                22%


                                                       Under Graduate 8
                                                       Master course 80
                                                       Ph D course 24


                                                                Total 112
                                       70%

  17 graduates are now working as professors at universities

            More than 10 graduates are from foreign countries
  •@


  Prof. Iwao Sasase, Keio University

								
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