Ingenieur Vol 78 ingenieur 2019 apr (2) | Page 57

5G technology is specified to use two frequency bands, FR1 (below 6 GHz, shared with LTE) and FR2 (mmWave or above 24 GHz). 5G signals that use higher frequencies are not capable of travelling large distances and cannot easily penetrate solid objects. As a result, rather than huge, geographically dispersed towers, much of a 5G network will consist of a dense, distributed network of small cell base stations to overcome these issues. This in turn allows more processing on the edge, leading to lower latencies. Such a network is also advantageous in terms of installation costs. 5G also makes use of other technologies such as Massive MIMO antennas that can increase sector throughput and Beamforming to improve signal quality and data transfer speeds. Superhighway for IR4 Bernard Marr, in an article in Forbes, describes the 4 th Industrial Revolution (IR4) as "the exponential changes to the way we live, work and relate to one another due to the adoption of cyber- physical systems, the Internet of Things (IoT) and the Internet of Systems. As we implement smart technologies in our factories and workplaces, connected machines will interact, visualise the entire production chain and make decisions autonomously. This revolution is expected to impact all disciplines, industries, and economies." Professor Klaus Schwab, Founder and Executive Chairman of the World Economic Forum, the man who coined the phrase, describes it as "a range of new technologies that are fusing the physical, digital and biological worlds, impacting all disciplines, economies and industries." While the previous industrial revolutions were powered by steam, electricity and computerisation, the fourth industrial revolution, with an entire interdependent, interlinked digital ecosystem, relying on data to inform every step in every process, will be underpinned by 5G communications networks. 5G infrastructures will allow for real-time communication, eliminating the annoying lag over distances, procedures such as remote surgeries that require not only real-time images and response but also ultra-reliability, and mMTC will provide the capacity to accommodate IoT devices and deliver AI capabilities. S t r a t fo r, an A m e r i c an ge o p o li t i c al intelligence platform and publisher, writes, "5G communications networks will enhance the performance of the Internet of things, autonomous vehicles and other technological advancements in the 2020s." In an article published on their website, Stratfor Worldview reported that in a 5G simulation in San Francisco, users could enjoy a significant increase in speeds rising from 71 megabits per second 55