The elusive myth of 5G is getting closer to becoming a reality, and the impact this could have on blockchain development is significant.
According to a report in the FT this morning, the microstate of San Marino will become the first country in the world to test the new broadband service.
Tucked away in the northern part of Italy, San Marino has the smallest population of the Council of Europe and claims to be the oldest still-existing sovereign state in the world, as well as the oldest constitutional republic.
Telecom Italia Mobile has signed an agreement with the government of San Marino to upgrade the 4G system in preparation for state-wide 5G trials starting in 2018. 5G testing is ongoing in other regions such as South Korea, China and the US. However, they tend to be small trials lacking the pressure of real-world use cases. San Marino’s small size makes it the ideal site for first nation-wide test case (although it should be noted that AT&T plans to roll out 5G in test cities such as Austin and Indianapolis, each with approximately 30x the population of San Merino).
As its name implies, 5G is a step above 4G, which is what most developed countries have installed in the cities (with 3G still the main carrier technology in the countryside), with speeds up to 10x faster. 5G promises broader coverage, faster downloads and lower latency.
While the first two characteristics sound great from a user perspective, the latter is essential for effective deployment of the Internet of Things (IoT). Latency refers to the time elapsed between one node sending a signal and another receiving it. If we are going to have a myriad of gadgets exchanging data, we need to know that the transfer is fast, especially if payments are made or if decisions are based on the information.
Driverless cars, for example. Sensor-based shopping. Smart gadgets reacting quickly (lights turning on, doors opening, alarms alerting).
With sensors in close proximity to the central server, latency is not usually a problem. But with sensors distributed in a wide area, it would be, especially if the connection is to a blockchain.
I’ve written before on how blockchain technology can help the Internet of Things, but since that was a while ago, a brief update: a network of gadgets connected to a central server is more vulnerable than one connected to each other. It’s not only the single point of failure that is the concern – the possible manipulation of data, relatively simple when that data is centralized, is also a significant risk.
On a blockchain, however, gadgets share information with each other. “Smart contracts” can help to execute actions dependent on that information, and verification is carried out by the network itself. The security is much more hack-proof than traditional databases. And regulators can be “looped in” to the network, facilitating compliance and approval.
Blockchain IoT networks can also give rise to new business models, with “things” being owned collectively, and being economically self-sustaining. For example, a driverless car can both earn (by ferrying passengers) and spend (on tolls, parking and maintenance) its own money.
This scenario is not possible, however, without an upgrade in connectivity. 5G could offer that.
Once the new service is rolled out, San Marino perhaps could also become a testing ground for distributed IoT networks, and other latency-sensitive blockchain applications.
So, the nationwide trial is a big step forward not only for mobile networks but also for blockchain. While many experts believe that we won’t see 5G rollout until the end of this decade, we are getting closer. And San Marino, small and steeped in tradition as it may be, could end up helping pushing development of these two key technologies forward.