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signals , for example , and contribute to traffic efficiency .
Thanks to available wireless technologies such as 4G and 5G , vehicle-to-everything communications can be carried out via cellular networks ( C-V2X , Cellular Vehicle to Everything ).
Broadly speaking , all these forms of connectivity for vehicles seek to contribute to safety and accident prevention , as well as efficiency in traffic which also leads to savings in energy , fuel consumption and carbon dioxide emissions .
Currently , there are various tests that aspire to make autonomous vehicles a reality , that is , that they are driven without the need for human intervention . But , in addition , there are different degrees of automation and assistance that can be implemented in cars thanks to the use of ICT , increasing the information available to human drivers and simplifying decisionmaking behind the wheel .
The arrival of 5G holds great promise for C-V2X communications , thanks to its technical capabilities for low latency , availability and security , as well as the use of network slicing and edge computing , which opens the doors to a wide variety of applications in the vehicular field .
For example , thanks to the use of different network slices , a vehicle could simultaneously take advantage of these independent network segments for services and applications with very different requirements , such as entertainment ( real-time video over broadband ), maintenance applications ( transmission of information from the engine or other components to manufacturer-specific applications ), and remote driving , automation or assistive applications .
All the above cases need different levels of requirements in terms of bandwidth , transmission at high mobility speeds , latency , reliability , availability and power consumption . Thanks to 5G , all of them could be a reality using the same wireless communication technology . p
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