ADAS, non‑line‑of‑sight, extended‑range sensing, advanced warning systems – these are buzzwords that come from today's carmakers. But what will actually make this all happen? And how reliable is the technology?
If we talk of V2X we refer to the exchange of information between vehicles (V2V) or the vehicle and its environment (vehicle to infrastructure, V2I). The information may indicate that the following driver is going to overtake you or that a person is approaching the crossing just ahead of you. Information about a nearby accident will help to redirect traffic to avoid a traffic jam. It is a way to make the driver’s life easier and more secure.
Also the environment will gain from this new technology: Optimized traffic flow as a result of assistance for overtake maneuvers, regulated traffic lights, street signage, and intersection alerts will improve fuel consumption and CO2 emissions.
And last but not least, the technology will end in lower costs for traffic management and therefore will optimize governmental budgets.
The challenges of V2X include accuracy of car position and security. Also the detection of pedestrians and cyclists still must be refined. And the different regulations between worldwide regions must be considered to make V2X a success story.
The underlying communication technology enabling V2X is based on IEEE 802.11p, which defines enhancements to traditional Wi‑Fi, optimizing for low‑latency, non‑line‑of‑sight and long‑distance connectivity.
V2X incorporates a sophisticated security and verification framework to keep away malicious attackers while at the same time coping with the demanding latency constraints demanded by the applications of interest. THEO‑P1 is the first u‑blox product serving V2X requirements. It is an automotive grade V2X transceiver module for infrastructure and vehicles compliant to WAVE and ETSI ITS G5 for operation in the USA and Europe. The single‑channel 802.11p diversity and dual concurrent channel operation works at communication ranges of more than 1 km.