Broadband Internet I / 1 1 I / 1 2
I / 1 3 PSTN: Network as service infrastructure Circuit switch I / 1 4
Internet: End-to-End model Core routers Core routers I / 1 5 Internet I / 1 6
TCP/IP Application TCP Application TCP IP Network Interface Physical IP Network Interface Physical IP Network Interface Physical IP End-to-End I / 1 7 TCP/IP IP I / 1 8
IPv4 IPv6 Multicast IPsec for payload encryption and end-node authentication Lower Layers: IP layer (L3), Transport Layer (L4) Internet as a clear data transfer channel Upper Layers: Application Layers I / 1 9 IPv4 I / 1 10
PC TV I / 1 11 I / 1 12
I / 1 13
0 7 1 2 8 9 6 16 17 Broadband Services in Japan 4,500,000 4,000,000 3,500,000 3,000,000 2,500,000 2,000,000 Optical Fiber Subscribers 99,404 Wireless Subscribers approx. 23,000 DSL Subscribers 4,223,216 1,524,348 2,378,795 4,223,216 3,300,926 1,500,000 1,151,000 Cable Internet 967,000 Subscribers approx. 1,758,000 1,456,000 1,000,000 784,000 921,867 625,000 463,000 650,796 500,000 329,000 92,000 154,000 216,000 32,000 66,000 70,655 291,333 0 19 211 1,235 2,537 9,723 99-3 99-6 99-9 99-12 00-3 00-6 00-9 00-12 01-3 01-6 01-9 01-12 02-3 02-6 02-9 I / 1 16 1,758,000
Comparison of DSL Service Charges yen Total: 4,850 yen Total: 5,050 yen Total: 2,453 yen Total: 5,979 yen Total: 7,176 yen Total: 4,477 yen Total: 4,982 yen Total: 4,611 yen Total: 3,081 yen NTT East BB Technology Verizon BT FT DT KT (Japan) (Japan) (U.S.A) (U.K.) (France) (Germany) (Korea) Note: Fees are as of July 2002. I / 1 17 I / 1 18
40-50 Mbps VDSL Few Mbps ITS (DSRC) ADSL CATV IMT-2000 BlueTooth CD-ROM 1 600MB V 32 524288 (sec) 146 ISDN B76800 (sec) 21.3 3200 sec) 53 Ethernet 480 (sec) 8 106 (sec) 1.78-3 31 (sec) OC-48 1.9 (sec) OC-192 0.4 (sec) I / 1 20
WWW. /. I / 1 21 I / 1 22
Full digital media Sensors on the Internet Micro node Automobile Peer-to-Peer (P2P) services I / 1 23 DVTS on Any Type of Computers Anything with IEEE1394 and 100BaseTX ex. I / 1 24
DV over IP DV over RTP/IP (Internet) DV over IEEE1394 DV over IEEE1394 WIDE Project Mbps I / 1 25 DV/IP Processing Internet-Friendly Frame Rate Control Remote Control using SSH Full Encrypted DV Transmission with IPSec DV Multicasting with PIM-SM/PIM-DM reduce Variable DV data Image Audio DV data Bandwidth Control 4 2 3 1 4 3 2 1 Frame buffering Packet reordering I / 1 26
Digital Campus http://www.soi.wide.ad.jp/ I / 1 27 BII@Beijin Wisc NTT@SJC Fujitsu JPN Myanmar, Lao, MY, School on on the Internet; Sharing global intelligent over the global internet space for for people
Power On Ethernet IPv6 I / 1 30
AutoID F 127.C 23.DF 1 B. 177 CC RF-ID/IC card RF-ID MYCOM PC WEB http://pcweb.mycom.co.jp/news/2 001/07/05/22.html IC RF-ID
IP Datalink IP Datalink TCP/UDP TCP/UDP Application Application SNMP/HTTP VM TCP/UDP Application Application Application IP Datalink Internet Car Internet Car / 1640 270 270 10 10 7 1 DoPa PC 1996 DoPa PHS LAN Note PC Mobile IP 1997 Internet ITS IPCar(JSK) Internet CAR(WIDE) DoPa, CPA, PHS, AirH, LAN, DSRC DoPa DoPa DoPa DoPa LAN sic2000 IPv6 2001 2001 2000 1999 1998
Yokohama is the place we can play Taxi's and Buses in Yokohama area are sensors of our GIS and new applications (taxi company) & Yokohama City Bus service Traffic jams, rain falls,. Wireless infrastructure enables us to make this happen. More requirements on the infrastructure have come up. I / 1 35
(sic2000-5) MR-2(sic2000-3) MR-2(sic2000-3)
January 18, 2002 IPv6+MobileIP6+InternetCAR TAXI control center I / 1 39 IPv6 Taxi testbed with InternetCAR+services for passengers IPv6 over DSRC Inside TAXI I / 1 40
VI Vehicles with the Internet I / 1 42
ITS I / 1 43 ProbeCar:!? Internet
: Peer to Peer Peer-to-Peer I / 1 45 P2P BBS (Bulletin Board System) News IRC(Internet Relay Chat) (Real WMT) Peer-to-Peer Gnutella/Jutella/Freenet talk DVTS Hybrid VoIP (Voice over IP) Napstar Instant Messenger (AOL MS) I / 1 46
B-to-B B-to-C C-to-C to C I / 1 47 I / 1 48
Peer-to-Peer Invisible Computer I / 1 49 Digital media mix Mobile / Ubiquitous Computing I / 1 50