Vehicle-To-Everything (V2X)To make autonomous driving reality, safety and reliability targets have to be met which have to exceed human performance by magnitudes. Since autonomous vehicle will roll-out over time, a transition phase will exist in which humans and machines will operate at the same time. To avoid catastrophic accidents, the autonomous vehicles have therefore also to be reliable against human misbehavior. This requires not only sophisticated AI and computing power, but also a physical system which allows reliable communication between other vehicles and sense at the same time their environment, all in the order of milliseconds! There, the term V2X (Vehicle-To-Everything) refers to communications between different vehicles (V2V - Vehicle-To-Vehicle) as well as communications between vehicle and infrastructure (V2I - Vehicle-To-Infrastructure).
To operate reliable at day and night or in good and bad weather conditions, radar technologies have to be utilized. With a wide-transmitting beam, many objects can be targeted in one single transmission. However, due to the missing angle-accuracy, the direction of the received signal cannot be resolved. Hence narrow-beams of massive antenna-arrays have to be utilized to scan 360° of the surrounding. To achieve such a scan in milliseconds, transmissions in microseconds are needed to obtain a good enough angle-resolution of less than half a degree.
In V2V-JSAC (Joint-Sensing-And-communication) scenarios, the radar beams will also carry information from one vehicle to the other vehicle. While some of the radio-waves will bounce back from the targeted received vehicle, the transmitting vehicle can use this reflection to determine the direction and range of the targeted vehicle. Due to large bandwidths, needed to obtain position accuracy in centimeters, multiple delay paths will be resolved, which corrupt the communication and radar performance. Since MOXZ is invariant to such multipath corruptions, it will be the key-technology and enabler for V2V and especially V2X-JSAC use-cases.