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.
Li-Fi communication module wirelessly transfers data at 1-Gbps
October 31, 2014
The Fraunhofer Institute for Photonic Microsystems IPMS in Dresden has developed communication modules that can wirelessly ...
Digital Lumens raises USD23m for intelligent LED lighting solution
Bosch brings electronic fuel system, connectivity to Asian motorbikes
NXP extends NFC ecosystem to the car
Japan's MegaChips to buy MEMS maker SiTime
Freescale CEO: 'IoT isn't just buzz'
October 30, 2014
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's ...
3D prints world's best inverter
Research project significantly improves electronics reliability
Netscout Acquires Communications Businesses From Danaher
- Wireless Power User Guide
- Secure is the New Smart
- 5 Best Practices for Designing Flexible Test Stations
- Intelligent PLCs Expand the Internet of Things
InterviewFreescale CEO: 'IoT isn't just buzz'
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's CEO Gregg Lowe had every reason to be chipper and lively when EE Times ...
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
This month, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...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.