PA-3. ITS - - LAN IP 2003/09/24 hmano@root-hq.com http://www.root-hq.com/
Mobile IP LINK IEEE802.11b 2.4GHz LAN IP (MISP) (MNET)
Authentication Server Home Agent Server MIS Manager Access Controller-W IP Mobile IP Solution(1)
IP IP Mobile IP Solution Authentication Server 260km/h IP IP Network Home Agent Server MIS Manager Access Controller-W Access Controller-W Access Controller-W IP PC VoIP Road to Vehicle
Hardware Software Authentication Server PC UNIX OS: Free BSD Authentication Server S/W Access Controller Home Agent Server PC UNIX OS: Free BSD Home Agent Server S/W IP MIS Manager OS Linux RedHat +ORACLE Postg esql MIS Manager S/W LDAP I/F Access Controller-W IP SIS BRD Authentication IP SIS MHD Access Controller-W
Access Controller-W RGW2400/APF-BRD ATM 2
RGW2400/ID-MHD (Celeron 400MHz )
Access Controller-W KA-00 1 2 5
3 SA-00
MIS Manager WEB IF Authentication Home Agent Access Controller-W MIS ID MIS < Mobile IP Solution Access Controller-W
2 Mobile IP AES MIP Manager WEB IF
MISP MobileIP MISP L IP MobileIP RFC2002 L3
Login LAN A,B,C SSID WEP.net 100 3. 2. SSID WEP MIS MIS MBA key
Mobile IP Solution(3) Mobile Manager Authentication Server P N work Home Agent Server Access Controller-W Access Controller-W Mobile Router Comparing strength of radio signal Mobile Router IP camera IP camera PC VoIP PC VoIP Handover
Home Agent HA) Authentication Auth) Access Controller-W AC-W) MHD KEY3 KEY1 KEY1 KEY3 MHD AC-W KEY2 KEY2 KEY1 KEY2 KEY2KEY1 KEY1 -a KEY1KEY2 KEY2 KEY2 AUTH -a AC-W MHD KEY2 COA COA KEY3 COA HA KEY3 COA KEY3 COA Client -b KE1 -b COA COA 1
Mobile IP Solution IP Authentication Home Agent(COA) Home Agen t
Mobile Manager Authentication Server IP N work Home Agent Server Access Controller-W Access Controller-W Mobile Router Comparing strength of radio signal Mobile Router IP camera IP camera PC VoIP PC VoIP Handover
HA MobileIP Binding Update OK Request Internet AC AUTH Authentication OK Request Beacon MISP Session Authentication Request OK Established MR Channel Scan LAN
HA AUTH Internet CN AC MR LAN
802.11 802.1122 /
802.11 ( ) Ch D/U D/U PC1 1 ATT + 2 PC1 ATT 3
D/U / 11 5/ =7 10 2 / =0.45 15/ =-9.3
IEEE802.11 ( ) 9ch 9ch 11 3 7 2 8 12 13 1 6 11 3 7 2 8 12 13 1 6 3 7 12 1 6 11 3 7 2 8 12 13 1 6 11 3 7 2 8 12 13 1 6 11 3 7 2 8 12 13 1 6 11 2 8 13 4 5 10 9 14
[db]= - [db]= + =PLoss[dB] f: d d[ m] PLoss = 22 + 20 log 300 f [ MHz] 10 +>>
( )
Mpeg2
260km IP 260km PDA IP 1.2km 400m 260km JPEG, Mpeg-4 AC-W MPEG4 Mobile IP Solution
400m LAN HUB Auth Home Agent Mobile Manager MPEG-4 260km Motion JPEG MPEG4 Encoder NTSC) PDA
1. 2. 3. 4. 1.
300[ms]
(Access Controller) (33[ms]) 100[ms] 1~14ch +100[ms] x 14+ 1.4Sec
400m 150km/h ------- 9.6 Sec 200km/h ------- 7.2 Sec 250km/h ------- 5.8 Sec
MTU1500 1500bytes 1mSec 1mSec260km/h 7.8cm
(1)
(2)
(3)
(4)
(5)
MobileIP Binding Update
Access Controller-W IP NETWORK IP Network Access Controller-W Access Controller-W Mobile IP Solution
Access Controller-W
PDA PC IEEE802.11b LAN IP Authentication MIS Manager Home Agent Mobile IP Solution IP Network Access Controller-W IP Network Access Controller-W A B IP
At Bus Stop At Gus Stations At Train ST Railroad
http://www.mbassoc.org
ETC Over IP
Store & Forward
NFM WFM QPSK IP
IP IP VHF UHF SHF FTTH xdsl CATV
ITS 3 / etc (ETC)
LAN DSRC IP
ITS