Applying V2X technology to drones: Page 4 of 6

November 10, 2017 //By Derek Tang, NXP
Drones have emerged as one of the fastest growing markets for a unique ecosystem of electronics. Drones need to navigate their environments and as a result will benefit from technologies that help them find their way and avoid danger. Fortunately, this technology already exists in different yet related technology areas. V2X (vehicle-to-vehicle and vehicle-to-infrastructure) communication using IEEE802.11p is a technology used to improve traffic safety and efficiency.

Less interference in 5.8 GHz band – When calculating the link budget, 2.4 GHz has 7.7 dB advantage compared to 5.8 GHz. This means that 2.4 GHz signal can propagate >2 times distance than 5.8 GHz signal under same conditions. However, the reality is that too many devices are working in 2.4 GHz band and interfering with each other, which dramatically reduces the range.

High-velocity tolerance – Consumer drones will cross the 100 km/h barrier soon, which will certainly introduce challenges to the communication system. 802.11p product can perfectly solve this issue, since it is designed to support high-speed vehicles. The solution from NXP has been proven to sustain with relative speeds up 500 km/h.

Affordable solution – Most development costs of V2X system for drones have already been addressed by the automotive industry, such as developing a new standard and a chipset, field tests. Moreover, the cost will drop down further with the V2X market growth.

The NXP 802.11p solution is cost-effective and meets all key requirements of drone video transmission. It outperforms Wi-Fi in several key specifications and provides the state-of-the-art performance.

Table 1: Comparison of various video transmission technologies.

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