▲ The types of Wi-Fi protocols for wireless connection
“Cellular network” is a service with an infrastructure based on mobility and is mainly operated by establishing networks that cover wide areas. On the other hand, “connectivity” provides wireless access among devices within a short distance without using infra-networks established by operators. This allows for the convenience of portability without wires. In particular, Wi-Fi boasts a faster transmission speed more reliably than cellular networks over relatively long distances, especially indoors. This is why Wi-Fi is so widely used for connecting mobile phones, laptops, and so on. Just like peer-to-peer (P2P), Wi-Fi is better for selective and intensive telecommunication that can when necessary, facilitate high transmission speeds. This makes it more appropriate for next-generation IoT devices, such as Augmented Reality (AR) and Virtual Reality (VR) devices.
These days, it is hard to even imagine daily life without Wi-Fi. It is easy to forget that, just 20 years ago, Wi-Fi was not expected to become the most commonplace wireless data telecommunications technology. However, as the industry expanded to smartphone-based technology, the realization grew that Wi-Fi was the most effective method of response to today’s data traffic explosion. Thanks to the lower cost of setting up and operating — when compared to cellular networks — it is a method that is still growing exponentially.
Unlike cellular systems using infra-networks, the data link range of a Wi-Fi network can only be extended up to a few hundred meters, so it is emphatically local. In addition, as it uses unlicensed bandwidth, it can be affected by interference from other telecommunication systems, making it risky for supporting advanced Quality of Service (QoS).7
However, as cellular and Wi-Fi convergence technology advances, it continues to provide a huge convenience: an undisrupted user experience. All over the world, Wi-Fi has long gone beyond being seen as a specific technology and is instead treated more like public infrastructure.
“Back in 2016, a dedicated team was set up to get Wi-Fi technology to the point where it could be integrated into the Exynos processor,” said Joonsuk Kim, Executive Vice President of the Connectivity Development Team. Kim was the team leader when the Connectivity Team was first established when joining Samsung in 2016. “In only about four to five years, we completed the development of the legacy protocols all the way up to the sixth generation of Wi-Fi (Wi-Fi 6) by achieving technological stability and readiness. Although there was not enough investment or talent, our technology caught up in just a short period of time,” he recalled.