JGN 2 KDDI NiCT IT 17518
NiCT IT
PC
<->
( )
[2], : " ",
(%) 100 0 0 T 1 T 2 t1.2 tx t3 t4 t6 (t)
2005
Mobile PC PDA Mobile PC PDA Mobile PC Mobile phone WAN Internet JGN II GIS
Japan Gigabit Network II Wireless Network Internet
Client Local Server Central Server
High Speed Network Internet Wireless Network Internet
High Speed Network Internet Wireless Network Internet
High Speed Network Internet Wireless Network Internet
JGNII HTTP DB DB HTTP
IT 30m~90m IT IEEE802.11a 802.11b/g IT 802.11b/g : : : : IT ( ) : : : : () : : :NiCT IT
BaseStation BS MH Wireless Recovery Protocol BS MobileHost: BS MH MH( ) BS MH BS
GPS
GPS GPS GPS