LTE suited for traffic applications, research project concludes
May 25, 2011 // Christoph Hammerschmidt
Which communication technologies are suitable to establish future telematics systems for cars? The "Cooperative Cars Extended" (CoCarX) research project figured out that, in combination with short-range radio technologies, the upcoming LTE mobile radio standard meets the requirements of a broad range of automotive-related applications.
The results of the CoCarX show that mobile telecommunications networks, in particular LTE because of its high bandwidth, can be used to implement many applications for and in cars, ranging from infotainment to time-critical driver assistance functions. The findings of the project were presented on May 25 in Duesseldorf (Germany). For the project, an LTE network from Ericsson was used which mobile radio provider Vodafone had installed in its Duesseldorf Test and Innovation Center. Test vehicles were Ford S-Max models.
During the trial, a hazard warning triggered by an emergency braking procedure by a vehicle in front of the test car showed that the signal propagation time is short enough to meet the demand of time-critical functions. In the trial, also automatic transmission of traffic message to the dashboard of the vehicles involved was demoed. In addition, a video stream was transmitted to the vehicles, proving the suitability of LTE for this type of infotainment application.
Since the LTE bandwidth is much higher than the bandwidth of 3G networks, more concurrent participants within a cell can make use of the wireless connection, the researchers said. This parameter is important to provide reliable connections in the vicinity of highly frequented traffic junctions. The short signal propagation time of less than 100 milliseconds permit the support of time-critical driver assistance systems.
In addition, one single LTE connection can be used for several concurrent services. QoS mechanisms permit to give priority to specific datagrams.
Even car-to-x communication schemes based on the IEEE 802.1p wireless standard can benefit if they are complemented by LTE, the research project concluded: Since commercial mobile radio networks typically span a large area, they can be used to forward messages relevant for a greater number of traffic participants.
In the CoCarX project were involved telecommunications infrastructure provider Ericsson, Vodafone, the Aachen Ford Research Center, BMW, and the German Federal Road administration.
Tower makes IR sensor for Intel RealSense
March 04, 2015
Foundry Tower Semiconductor Ltd., which trades as TowerJazz, has begun mass production of a near infrared light sensor used ...
Polymer blend improves solar cell efficiency by 200 percent
Stress tracker tames drivers
Glass coated cathode promises lithium-sulfur battery performance gains
Femtocell improves in-car mobile connectivity
Study: Autonomous driving changes cities and auto industry
March 03, 2015
The driverless car will have a disruptive effect on the automotive industry as we know it. A study from management consulting ...
Cisco, Deutsche Telekom and Intel to help IoT startups
Opinion: The NXP/Freescale takeover and automotive electronics
Parrot takes instant 3D mapping to the sky
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
To ensure you have a good start in 2015, Freescale is giving away five of its QorIQ TWR-LS1021A Tower system modules, worth USD269 each, for EETimes Europe's readers to win.
The module is the most feature-rich and high-performance Tower system offered by Freescale, enabling compatibility and interoperability with the growing list of Tower expansion modules, offering an easily accessible...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.