World comunication history Chapter Four (end)Looking to the future: where is the communication road

The pace of human progress will not stop, nor will the development and evolution of communication technology.

Today, we are once again at a turning point in our times.

On the surface, this is the turning point between 4G and 5G, and we are ushering in the exciting 5G era.

But in the real sense, now is a turning point in the era of the Internet of People and the Internet of Things. Our goal is to connect all things to universe.

Will the future really be as exciting as imagined? Will IoT applications usher in a second golden age?

Nobody knows the answer. All we can do right now is to work hard and wait patiently.

However, for the communication technology and network in front of us, there are really not many directions we can work on.

The main direction of wireless communication is the bandwidth of the wireless air interface. Through 5G's Massive MIMO enhanced antenna array, beamforming, and stronger encoding methods, the potential of electromagnetic waves is further squeezed.

On the wired communication side, the optical fiber seems to be able to meet the bandwidth requirements (currently the optical fiber has reached the Pb/s level, 1Pb=1024Tb), and there is no technical bottleneck in the processing capacity of the switching equipment. At present, the main direction of efforts is how to achieve lower cost, higher flexibility, scalability and security, and how to find the perfect balance between performance, demand and cost.

The introduction of AI artificial intelligence and the maturity of cloud computing big data technology are likely to help the next upgrade of the communication system and help achieve the above goals.

All in all, electromagnetism has a history of more than 130 years as the theoretical foundation of modern communication technology. It has been more than 70 years since the grandfather, Mr. Shannon, proposed the Shannon formula. Under the relay of countless correspondents, we are already approaching the limit. I believe that in the near future, there will be great scientists who will break through the dome and bring the dawn of a new world.

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As a correspondent, I look forward to this day coming soon.