Commonwealth Cyber Initiative

C-V2X allows to communicate via the LTE network using the 3GPP Release 14, and in future, the 5G mobile network. Cellular V2X is also designed to directly connect vehicles with each other as well as with the infrastructure and further road users. Even in areas without mobile network coverage, C-V2X communication allows an exchange of time sensitive and safety critical information, for example about warnings of potentially hazardous situations.

Smart intersections still include traffic lights and pedestrian crossings, but they also feature multiple industrial-grade cameras and computers capable of communicating with connected vehicles near the crossing. These cameras can capture images of pedestrians, oncoming vehicles and other potential hazards in or approaching the intersection, which is then sent to a computer that classifies the object and its potential threat.

There are several protocols that are used to deliver low-latency video streams to the end user. WebRTC is the newest & fastest kid on the block, and in theory, a no-brainer when latency is the main focus. While using WebRTC for our projects, two critical limitations were exposed: firstly, WebRTC struggles with large numbers of concurrent users and spikes in traffic. Secondly, WebRTC requires a dedicated hosting solution, reducing its flexibility and increasing hosting costs.

OpenHD uses off-the-shelf Wi-Fi adapters available for purchase online. However, it is not standard Wi-Fi, which is unsuitable for low-latency or very long-distance transmission. Instead, OpenHD configures the Wi-Fi adapter in a way that is closer to a simple broadcast, much like analog video transmission hardware you may be using already. High-definition video, 2-way UAV telemetry, audio, and RC control signals can all be sent over a single transmission channel. A multi-platform Open.HD app is available for live video with a customizable OSD.