Analysis of 802.11p-based Communication Applications

Car2x Network Explorer

Network Explorer

The Car2x Network Explorer is a viewer for Car2x databases and provides various functions. On the one hand, it provides a clear representation of the data structure of the messages and makes it possible to quickly find the signals you are looking for. On the other hand, you can configure the send behavior using the node and message attributes.

Car2x Database

Simulation Setup

CANalyzer .Car2x requires a description of the application message to be able to create or decode messages. These messages are made available to CANalyzer by the Car2x databases and contain all necessary information for encoding/decoding and for converting the physical raw values into the logical values. The database also contains information about the assignment of application messages to network nodes. Databases are managed in the database configuration dialog.

Map Window

Map Window

The map window gives you a quick overview of your test scenario. The positions of all received Car2x objects (ITS Vehicle Stations, ITS Roadside Stations) are automatically visualized on the map.

The synchronization with other windows simplifies the subsequent analysis.

Protocol Analyzer

Protocol Analyzer

With the Protocol Analyzer you execute Car2x protocol checks automatically. You can check protocol-specific contents individually for the particular protocols such as GeoNetworking, IEEE1609.3 and security (ETSI/IEEE1609.2). If an error is detected, warning and error messages are displayed in the trace window and in the detail view.

Trace Window

Trace Window

The trace window provides extended functionality for evaluating 802.11p WLAN packets, protocols (WAVE 1609.x, ETSI) and application messages (SAE, ETSI).

In addition to the general functions in CANoe, you can customize the window for specific domains. Application messages are therefore decoded according to their definition in the database. It also allows you to configure columns, highlight packages/logs/ or analyze error messages from the Protocol Analyzer.

Data Window/Graphic Window/State Tracker

Select test-dependent signals from vehicles you want to monitor. The data window displays the resolved values including the units defined in the database. If you would like to display these signals graphically, the graphics window can be used alternatively. In addition, the Bus Statistics window provides you with further statistical information.

Car2x Station Manager

Station Manager

The Car2x Station Manager is the central unit for the management of ITS stations. Using the Car2x Station Manager, you can manually or automatically assign received packets to the ITS stations managed in CANalyzer.

With this CANalyzer .Car2x offers not only a packet-based but also an ITS station-based view on the communication. For a good overview, you can specify individual colors for ITS stations.

Certificate Manager

Certificate Manager

In order to accept the WLAN messages generated by CANalyzer .Car2x from the to be tested ECU, the packet must contain a valid signed security header.

The certificate manager offers the possibility to create a PKI (ETSI and IEEE1609) and export the generated certificates. If a PKI already exists, certificates (including the private keys) can be imported into CANalyzer .Car2x.

Car2x Certificate Explorer

Certificate Explorer

With the Car2x Certificate Explorer you can record and analyze known certificates stored and received in the Car2x Certificate Manager. It also shows you the trustworthiness, the certificate or signature hierarchy and the content of the certificates.

The number of valid, invalid and not yet evaluable certificates is displayed in a status bar in the lower area of the Car2x Certificate Explorer.