Intelligent Transportation Systems

Linking Transportation and Technology

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SCALABLE provides unique network digital twin solutions to commercial enterprises, government and defense agencies, research organizations, and educational institutions around the world. Our network modeling software enables customers to analyze and predict network performance of communication technologies prior to deployment. It lowers development costs by drastically reducing time to test wireless network performance, reliability, and security under varying environmental conditions, including urban environments with thousands of moving vehicles.

One way that customers utilize SCALABLE’s digital twin tools is to make vehicles safer. Intelligent Transportation Systems, which include vehicle-to-vehicle and vehicle-to-infrastructure communications, is a new technology to improve safety on the road by relaying information between vehicles to help reduce collisions and loss of life. These intelligent transportation systems can make drivers (human or autonomous) aware of dangers that exist outside their visual or sensory field-of-view, for example, a vehicle speeding toward a red light in an intersection your own vehicle is about to cross.

In V2X communications, interoperability is crucial. Intelligent transportation technology must also operate with extreme reliability in a very dynamic environment, with high relative speeds, very low latency for dynamic connections, and safety-critical message receipt, in crowded urban environments with interfering signals.

There are competing technologies for V2X implementation. Dedicated Short Range Communications (DSRC) radios overcome frequency selective fading, shadowing, and high-speed hand-over difficulties, and use 802.11p to accelerate data exchange by reducing initial handshake and association. SCALABLE’s customers have been using EXata’s 802.11p wireless emulation with real DSRC radios in-the-loop to greatly reduce testing space requirements, time, and cost. A challenge to DSRC comes from the cellular industry in the form of C-V2X, which uses LTE and will upgrade to 5G. C-V2X promises performance advantages over DSRC, but has not been as extensively tested, which implies further delays that would be unacceptable to the automotive industry, with its priorities to improve driver assistance systems and develop autonomous vehicles. How can C-V2X testing be shortened? DSRC and C-V2X may need to coexist, but how will interoperability and interference be tested? SCALABLE’s wireless simulation includes urban environments, vehicle mobility, fading, shadowing, path loss, and interference, and our models of 802.11p, LTE, Thread, Bluetooth, and 5G provides the answer. Our network modeling tools reveal details about network performance at every layer of the stack, to locate problems in various environments and scenarios and improve safety on the road.

The Autonomous Car Era – A Joint Webinar with ST Engineering Antycip

Vehicle-to-Vehicle (V2V) and Vehicle-to-Everything (V2X) communication systems and how to improve connectivity for the autonomous car era. Watch the webinar to learn:

  • The promises of V2X Network Comms
  • The challenges of V2X Network Comms
  • The network modeling and simulation tools
  • EXATA, the software that enables developers to design and evolve models for networking technologies

Bluetooth Model Libray

New Model Library focused on the use case of broadcasting data via advertising channels to simulate generic multimedia traffic. Our wireless simulation and network modeling solutions provide a comprehensive way to assess all aspects of V2X communications including:

  • Modeling of vehicle and pedestrian mobility
  • Understanding the Impact of environmental and propagation factors like urban terrain, fading, shadowing, path loss, and interference
  • High-fidelity models of various protocols being used or considered for V2X communications including 802.11p, LTE, Thread, Bluetooth, and 5G

Network Simulation Models for the Virtual World

The Korean Automotive Technology Institute (KATECH) has selected EXata to integrate with their driving simulator. EXata will provide simulation models of the communications, using its built-in Wireless Access in a Vehicular Environment (WAVE, 802.11p) protocol model, and also models interference, fading, and path loss in rural and urban environments. Wireshark is used with EXata for packet sniffing, and to check the performance and interoperability of actual WAVE devices.

The system makes use of EXata’s scalability and simulation modeling and analysis capabilities and can represent scenarios with thousands of vehicles. EXata is helping KATECH investigate and solve many vehicle communications development issues in their lab with our network tools, by representing multiple real-world environments without the risk of accidents using computer network models. The savings to KATECH in terms of cost, set-up time, analysis time, and physical space for testing are significant and the safety it will provide is invaluable.

Related Resources

V2X - Putting New Technologies to Practice

Rising demand for autonomous vehicles and the simultaneous buzz around connected cities has caused another topic to emerge for discussion; that of how vehicles will connect to the world around them.

Network Modeling and Simulation in the Autonomous Car Era

With the rise of autonomous vehicles, the safety aspects of V2X take on even greater prominence. In the smart car, technology relays vital information to the driver but in an autonomous car, technology is the driver.

Intelligent Transportation Systems

Intelligent Transportation Systems, which include vehicle-to-vehicle and vehicle-to-infrastructure communications, improves safety on the road by relaying information between vehicles to help reduce collisions and loss of life.

Key Features of EXata

Real Time Emulator

Seamlessly interface with other live equipment and applications

Cyber Testing

Test the resiliency of your network to Cyber Attacks

Network Digital Twin

Test your network in a low-cost, zero-risk environment

Scalability

Model thousands of nodes with parallel execution

Model Fidelity

Models simulate accurate real-world behavior

Commercial enterprises, educational institutions, and governmental organizations around the world all depend on reliable, effective networks to deliver business-critical, mission-critical communications, and information. SCALABLE maintains a highly experienced group of technical professionals to support customers and projects of any scale and solve challenging problems with our advanced network digital twin technology.

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