1. Summary of the InternetCAR testbeds
Summary of InternetCAR Network architecture
Jun
Keisuke
Keio University/WIDE Project
28 November 2018

2. Assumed environment Gas Station Outside Home DSRC PAN Cellular
Summary of InternetCAR Network architecture
Cellular
IEEE802.11b
Outside
Home
28 November 2018

3. Three different connectivity model models
In-vehicle
Router
In-vehicle
computer
In-vehicle
computer
Summary of InternetCAR Network architecture
Model-1: Single Computer model
Model-2: Single Router model
In-vehicle
Router
In-vehicle
Router
In-vehicle
computer
Model-3: Multiple Routers model
28 November 2018

4. Three different connectivity model models
In-vehicle
Router
In-vehicle
computer
In-vehicle
computer
Summary of InternetCAR Network architecture
Model-1: Single Computer model
Model-2: Single Router model
In-vehicle
Router
In-vehicle
Router
In-vehicle
computer
Model-3: Multiple Routers model
28 November 2018

5. Single computer model For passengers Taxi & DSRC
Summary of InternetCAR Network architecture
Jan , Nagoya Press conference　
28 November 2018

6. Model-1: Single Computer model
Definition:
One in-vehicle computer is connected to the Internet with one or more communication devices.
When using several computers, each computer must have independent communication devices.
Problems:
There is a network topology dependent part in an IP address.
An IP address cannot be used to identify individual in-vehicle computer (automobile).
Summary of InternetCAR Network architecture
Interface ＩＤ
SLA 予約 FP
NLA
TLA
sTLA
Network topology depend
IP Address
28 November 2018

7. Model-1: Single Computer model
Problem:
Initiating Connection
Mobile Transparency
3ffe:501:100c:d301::1
Summary of InternetCAR Network architecture
Internet
Cellular
IEEE802.11b
3ffe:501:100c:d302::1
3ffe:501:100c:d301::1
28 November 2018

8. Model-1: Single Computer model
Problem:
Nomadic (A CN can call out a mobile node)
Mobility Transparency (keep a transaction)
Proposal:
Tunneling
An IP packet is encapsulated in an IP packet.
IP packet is forwarded with another header.
Mobile IPv6
Extending IPv6
Route optimization is enabled.
LIN6(Location Independent Network 6)
Introducing Location Independent Node ID.
An mechanism is exist to map a current IP Address and a Node ID.
Dynamic DNS
Support only nomadic capability
When an automobile move (switch a medium), it register its mapping.
It is usable when mapping is issued, which mean a time to initiation a connection.
Others
Summary of InternetCAR Network architecture
28 November 2018

9. Internet Tunnel Tunnel Server 3ffe:501:100c:d303::2
Summary of InternetCAR Network architecture
Internet
Src: 3ffe:501:100c:d301::1
Dst: 3ffe:501:100c:d303::2
Src: 3ffe:501:100c:d303::2
Dst: 3ffe:501:100c:d301::1
Src: 3ffe:501:100c:d302::1
Dst: 3ffe:501:100c:d301::2
Src: 3ffe:501:100c:d301::1
Dst: 3ffe:501:100c:d303::2
Src: 3ffe:501:100c:d301::2
Dst: 3ffe:501:100c:d302::1
Src: 3ffe:501:100c:d303::2
Dst: 3ffe:501:100c:d301::1
Tunnel
Server
3ffe:501:100c:d301::1
3ffe:501:100c:d301::2
3ffe:501:100c:d302::1
28 November 2018

10. Internet Mobile IPv6 3ffe:501:100c:d302::1 3ffe:501:100c:d301::1
Summary of InternetCAR Network architecture
Internet
Cellular
IEEE802.11b
3ffe:501:100c:d302::1
3ffe:501:100c:d301::1
3ffe:501:100c:d301::1
28 November 2018

11. Three different connectivity model models
In-vehicle
Router
In-vehicle
computer
In-vehicle
computer
Summary of InternetCAR Network architecture
Model-1: Single Computer model
Model-2: Single Router model
In-vehicle
Router
In-vehicle
Router
In-vehicle
computer
Model-3: Multiple Routers model
28 November 2018

12. InternetITS Hi-function Prototype Car
Summary of InternetCAR Network architecture
28 November 2018

13. Model-2: Single Router model
Definition:
Several computers are connected to in-vehicle network. And there is single router which is connected to the outside.
Problem:
A network-topology-dependent part exists in an IP address.
An IP address cannot be used to identify individual in-vehicle computer (automobile).
The network identifier used in a vehicle has to be changed.
Summary of InternetCAR Network architecture
IP Address
Interface ＩＤ
SLA 予約 FP
NLA
TLA
sTLA
Network topology depend
28 November 2018

14. Model-2: Single Router model
Problem:
Initiating Connection
Mobile Transparency
3ffe:501:100c:d301::
Summary of InternetCAR Network architecture
Internet
Cellular
IEEE802.11b
3ffe:501:100c:e301::
3ffe:501:100c:d301::
28 November 2018

15. Model-2: Single Router model
Problem:
Nomadic (A CN can call out a mobile node)
Mobile transparency (keep a connection)
Network auto-configuration in a vehicle
End node capability
Scalability (There are many nodes in a vehicle.)
Proposal:
Tunneling
An IP packet is encapsulated in an IP packet.
IP packet is forwarded with another header.
Mobile Network (NEMO: Network Mobility, Network in Motion)
Proposal 1: extending Mobile IPv6
Proposal 2: introducing a brand new protocol …
Summary of InternetCAR Network architecture
28 November 2018

16. Internet Tunnel 3ffe:501:100c:d301:: Cellular IEEE802.11b
Summary of InternetCAR Network architecture
Internet
Cellular
IEEE802.11b
3ffe:501:100c:d301::
3ffe:501:100c:d301::
28 November 2018

17. Internet Tunnel Tunnel Server 3ffe:501:100c:d303::2
Basic mechanism is same with host mobility. However, the edge of tunnel have to be router.
Summary of InternetCAR Network architecture
Internet
Src: 3ffe:501:100c:d301::1
Dst: 3ffe:501:100c:d303::2
Src: 3ffe:501:100c:d303::2
Dst: 3ffe:501:100c:d301::1
Src: 3ffe:501:100c:d302::1
Dst: 3ffe:501:100c:d301::2
Src: 3ffe:501:100c:d301::1
Dst: 3ffe:501:100c:d303::2
Src: 3ffe:501:100c:d301::2
Dst: 3ffe:501:100c:d302::1
Src: 3ffe:501:100c:d303::2
Dst: 3ffe:501:100c:d301::1
Tunnel
Server
3ffe:501:100c:d301::1
3ffe:501:100c:d301::2
3ffe:501:100c:d302::1
28 November 2018

18. Mobile Network Mobile Network vs Mobile Host Host Mobility:
a single node changes its point of attachment (mobile node MN)
Network Mobility:
a bulk of nodes mobile as a unit
one or more IP-subnets
connected to the Internet via 1 or more mobile routers (MR)
only MR changes its point of attachment
Internet AR AR MR MN MR MN
Summary of InternetCAR Network architecture
28 November 2018

19. Mobile Network Mobile Network MR + nodes behind the MR:
Fixed nodes:
Belong to the mobile network
sensors, light, GPS
Mobile Nodes:
Don’t belong to the mobile network
Get Internet access via the mobile network
E.g. mobile phone, PDA
mobility management must be transparent to nodes behind the MR AR
Summary of InternetCAR Network architecture MN AR MR
router MN
host
28 November 2018

20. Three different connectivity model models
In-vehicle
Router
In-vehicle
computer
In-vehicle
computer
Summary of InternetCAR Network architecture
Model-1: Single Computer model
Model-2: Single Router model
In-vehicle
Router
In-vehicle
Router
In-vehicle
computer
Model-3: Multiple Routers model
28 November 2018

21. Model-3: Multiple Routers model
Extension of Mobile Network
Cooperation among routers
Route Advertisement: A router has to be selected by a node.
In-vehicle
Router
computer
Summary of InternetCAR Network architecture
28 November 2018

22. Model-3: Multiple Routers model
Extension of Mobile Network
Cooperation among routers
Route Advertisement: A router has to be selected by a node.
In-vehicle
Router
computer
Under development
Summary of InternetCAR Network architecture
28 November 2018

23. Open issue Move detection Configuring addresses IPv6 over IPv4
L2 trigger
L3 connectivity test
Configuring addresses
Stateless auto-configuration
DHCPv6
IP6CP(PPP)
DAD (Duplicated Address Detection): needs some second.
IPv6 over IPv4
Multiple Interface
Preference of Applications
Load balancing
Fast Handover
MANET
QoS
Security
Authentication
Encrypting
Summary of InternetCAR Network architecture
28 November 2018

24. Interface management CoA management daemon
Each interface is watched by interface management daemon.
When an interface is available, an interface management daemon has to setup the interface. It means it has to initiate DHCP, stateless configuration or PPP.
When higher priority interface is available, CoA management daemon initiates a switching mechanism.
Some devices can be used with IPv4. The automobile has to setup IPv6 over IPv4 tunnel dynamically, when it is used.
Summary of InternetCAR Network architecture
CoA management daemon
Dynamic Tunnel
Dynamic Tunnel
PPP
Stateless Auto-conf.
PPP
Interface
Management
daemon
Interface
Management
daemon
Interface
Management
daemon
L2 signaling
Cellular Packet
(PDC-P)
PHS
802.11b
Try, when disconnected
28 November 2018

25. IP over DSRC
There are two different proposals to use DSRC (Dedicated Short Range Communication) in Japan.
IP over PPP over DSRC
Broadcast type DSRC (Ethernet type DSRC)
We tested both of above.
Summary of InternetCAR Network architecture
28 November 2018

26. Testbeds IPCar (Yokohama) InternetITS (NAGOYA)
WIDE Project supports and initiates two projects:
IPCar (Yokohama)
Aims to Probe System.
Providing two types of information in this site.
Traffic information
weather information
270 cars
Citybus camera monitoring
InternetITS (NAGOYA)
Aims to develop a platform for ITS based on the Internet
1570 cars in Nagoya + 70 cars in Kanagawa
Summary of InternetCAR Network architecture
28 November 2018

27. Probe Information System (Traffic)
Summary of InternetCAR Network architecture
28 November 2018

28. Probe Information System (Rain condition)
Summary of InternetCAR Network architecture
28 November 2018

29. Summary of InternetCAR Network architecture
28 November 2018

30. Trial in NAGOYA, the first quarter 2002
We tested two types of in-vehicle computers.
Single Computer model
Single router model
Summary of InternetCAR Network architecture
28 November 2018