Transcription of 第2 章 ITS 安全運転支援無線システムの在り方
1 16 2 ITS ITS ITS (1) ITS 17 (2) (3)
2 18 ITS ITS 2012 7 700 MHz 715 MHz 725 MHz ITS 5770 MHz 5850 MHz (1) 700 MHz 700 MHz TV 800 MHz 700 MHz 19 (2) ETC (3)
3 700 MHz 1 m m 10 Mbps 2 4 Mbps 3 ETC 1 2 ITS 3 ITS FORUM RC 005 20 ITS 700 MHz 700 MHz ITS 700 MHz ITS 2012 700 MHz ETC DSRC DSRC 2009 21 20 10/19 10/24 GHz 10/27 10/31 700 MHz 1 1 1 5m 700 MHz 95% 180m 95% 50m 4 10m 95%
4 + + + +47m+57m+114m+171m+228m+285m+ + + + + +47m+57m+114m+171m+228m+285m+ + 22 700 MHz 0102030405060708090100-100 0 100 200 300 400 [m] [ ] [m]0102030405060708090100-100 0 100 200 300 400 [m] [ ] [m] 23 ITS (1) DSRC IEEE1609 DSRC ETSI TC ITS 2009 2012 2015 (2) ITS 700 MHz RC-006 OFDM22 CSMA/CA23 22 OFDM Orthogonal Frequency Division Multiplexing( ) 23 CSMA/CA Carrier Sense Multiple Access/Collision Avoidance( / )
5 C2C/C2 INetworkActiveSafetyC2C/C2 ITransport PHY/MAC/LLCIPv6 MIP/NEMOUDP/TCPT rafficEfficiencyInfotainmentIEEE1609 COMeSafetyC2C-CCARIB ITSASV-4/DSSS/SmartwayIntelliDriveVSC SAE J2735 ISO/TC204WG16 CALM C2C/C2 INetworkActiveSafetyC2C/C2 ITransport PHY/MAC/LLCIPv6 MIP/NEMOUDP/TCPT rafficEfficiencyInfotainmentIEEE1609 COMeSafetyC2C-CCARIB ITSASV-4/DSSS/SmartwayIntelliDriveVSC SAE J2735 ISO/TC204WG16 CALM 24 (3) ITS ITU-R ISO 25 ITS ITS ITS ETSI IEEE ITS 2010 26 ITS (RC-006)
6 700 MHz RC-006 1 OFDM 2 CSMA/CA 2 4 7 3 7
