From university academician to chief academician

The car stopped in front of the University of Electronic Science and Technology of China, Ye Fei got out of the car, the driver opened the trunk, Ye Fei took down the luggage, and then the car drove away.

Ye Fei stood in front of the gate and glanced at the door number above the gate, which read 'University of Electronic Science and Technology of China'.

Students come and go in front of the gate.

It is after five o'clock in the afternoon, which is the time for students to finish class. Many students go out to play together after class.

Seeing Ye Fei appearing at the school gate with his suitcase, many people looked at Ye Fei curiously.

Seeing that Ye Fei is very young, I thought Ye Fei was also a student.

But are students just now bringing their suitcases to school?

Now is not the time for admission!

Because entering the school requires a key card, Ye Fei did not have a key card.

So, Ye Fei took out his mobile phone and called Academician Ning.

Institute of Wireless Communication Technology, University of Electronic Science and Technology of China, Office of Academician Ning!

"Xiao Liu!" Academician Ning said, "Is he gone?"

Xiao Liu is the assistant of Academician Ning, a man in his thirties wearing glasses.

Academician Ning called Ye Fei early in the morning and asked him when he would arrive. Ye Fei said that the flight would be at 2:30 in the afternoon.

So, at about three o'clock in the afternoon, Academician Ning asked Xiao Liu to send someone to guard the exit of the airport and pick up Ye Fei.

"Gone." Xiao Liu said.

Academician Ning raised his hand, looked at his watch, and said, "Call and ask if anyone has received the call."

"OK!"

After speaking, Xiao Liu walked aside and took out his mobile phone to make a call.

At this time, Academician Ning's cell phone rang. He took it out and took a look and found that it was Ye Fei.

He quickly connected and said with a smile: "Professor Ye, are you here?"

"We're here!" Ye Feidao said, "I'm at the entrance of the University of Electronic Science and Technology of China now. Please send someone out to pick me up. I don't have a key card and I can't get in."

"Huh?" Academician Ning said in surprise: "Didn't my people receive you?"

"I came here by car myself."

"Oh, okay, I'll pick you up at the door now."

After hanging up the phone, Xiao Liu came over and said, "Dean, I didn't receive the call. He is still waiting at the airport gate."

Academician Ning is the head of the Wireless Communication Technology Research Institute, and his position is dean.

Academician Ning said: "Why should we pick him up? Professor Ye and his friends are already at the school gate. Please ask him to come back. We will pick up Professor Ye at the school gate now."

Xiao Liu was stunned for a moment, and then said: "Okay!"

After saying that, the two walked out. On the way, Xiao Liu called the person who picked up Ye Fei to come back.

"Professor Ye!" Academician Ning walked to the school gate, greeted Ye Fei with a smile, and shook hands with Ye Fei.

"I'm really sorry for asking you to come here in person. I originally sent someone to pick you up, but that person didn't pick you up."

Ye Fei smiled and said: "I want to say sorry, I didn't explain the flight clearly."

"Let's go!" Academician Ning said: "Let's go in, Xiao Liu, help Professor Ye get his luggage."

"Professor Ye, let me do it!" Xiao Liu walked two steps forward.

Ye Feidao: "No, there aren't many things. I'll do it myself."

After that, they walked towards the school.

Along the way, Academician Ning introduced the University of Electronic Science and Technology of China to Ye Fei.

This was Ye Fei's first visit to Chengdu. He had always heard people say that Chengdu was a very comfortable city.

If you are young, you will not enter Sichuan, and if you are old, you will not leave Shu!

In Chengdu, there are two most famous things, food and beautiful women.

Chengdu is also a city with a very developed tourism industry.

This has caused many people across the country to flock to Chengdu.

But because of this, Chengdu was no longer comfortable and began to inward.

Ye Fei first came to Chengdu and didn't feel much about Chengdu.

Entering the Wireless Communication Technology Research Institute, Academician Ning said: "I will take you to meet the people in each research laboratory first."

"Okay!" Ye Fei nodded.

Xiao Liu stepped forward and said, "Professor Ye, give me your luggage and I will deliver it to your residence."

"Thank you!" Ye Fei handed the luggage to Xiao Liu.

"It's okay!" Xiao Liu smiled and said, "I should do it."

Afterwards, Academician Ning led Ye Fei to meet with people from various research laboratories.

After a long time, the two returned to Academician Ning's office.

"I came to you mainly to solve the short pulse technology. Do you have anything to say?"

Ye Feidao: "If I want to solve the problem of short pulse technology, I first need to know all the research information, and then I can provide help with short pulse technology."

"This is natural." Academician Ning said: "I will ask Xiao Liu to give you the information. After reading it, we can discuss it?"

"Okay!" Ye Feidao.

Ye Fei spent the next time reading Li-Fi's research materials.

A week later!

Ye Fei lives in an apartment next to the University of Electronic Science and Technology of China.

In the study!

At this moment, Ye Fei is chatting with Shesky Marvin, the editor-in-chief of the scientific journal, and Professor Adiva Aiken of Princeton University.

Ye Fei has not forgotten that Zhang Yitang recommended him to become the review editor of scientific journals.

Ye Fei was interviewing as a review editor in mathematical number theory.

Adiva Aiken is a tenured professor at Princeton University, focusing on number theory.

At the same time, he is an internationally renowned number theorist. His most famous event is proving the weak BSD conjecture.

The BSD conjecture is one of the seven major problems in mathematics.

The editor-in-chief said: "Hello, Professor Ye. Nice to meet you. This is Professor Adiva Aiken from Princeton University."

Ye Feidao: "Hello!"

The editor-in-chief said: "I was very happy when Professor Zhang Yitang recommended you. I know that you have proved the ABC conjecture. I highly recognize your ability."

"So, today, our interview is just a formality."

Ye Fei nodded and said, "Okay!"

Afterwards, Ye Fei talked with them about some issues in number theory.

After a long time, the editor-in-chief said: "Professor Ye, our interview is over. Soon, you will receive the membership card of the National Association for the Promotion of Science and the invitation letter from the scientific journal."

Scientific journals belong to the National Association for the Advancement of Science, the world's largest consortium of science and engineering societies and the world's largest non-profit international science and technology organization.

It has 21 professional branches, covering subjects including mathematics, physics, chemistry, astronomy, geography, biology and other natural and social sciences.

There are currently 265 branches and 10 million members.

Its annual meeting is an important gathering of the scientific community. In recent years, each annual meeting has attracted thousands of scientists and thousands of science journalists.

The platform of the National Association for the Promotion of Science is one of the top scientific platforms in the world.

Because of this, Zhang Yitang recommended Ye Fei to become the review editor of scientific journals.

Become a member of the National Association for the Advancement of Science and you will have access to the world's top scientific scholars.

"Okay!" Ye Feidao.

The editor-in-chief smiled and said: "Goodbye, Professor Ye. I hope we can have a pleasant cooperation in our future work."

“Happy to work with!”

After saying that, Ye Fei clicked to hang up the video call.

One month later!

Academician Ning's office!

The two of them were sitting on the sofa drinking tea. Ye Fei said: "Academician Ning, I have read the information. Let me tell you my opinion."

"Okay!" Academician Ning put down his tea cup and said, "You tell me."

Ye Fei thought for a while and then said: "Your current research plan is to use the carrier-free pulse scheme, single-carrier pulse DS-CDMA and MB-OFDM schemes."

"In terms of advantages and disadvantages of these two options, I prefer the carrier-free pulse option."

There are no carriers and single carriers, as well as dual carriers.

These three technologies are the three mainstream technologies in current wireless communications, each with its own advantages and disadvantages.

The reason why Ye Fei chose carrierless is that carrierless has the advantages of low system complexity, low power spectral density of transmitted signals, insensitivity to channel fading, low interception capability and high positioning accuracy.

It is especially suitable for high-speed wireless access in indoor dense multipath places.

Of course, carrierless technology is very difficult and requires very high mathematics and communication capabilities.

Because it does not use a sinusoidal carrier wave, but uses nanosecond-level non-sinusoidal narrow pulses to transmit data.

Currently, no research institute in Xia State owns this technology, and the patent must be rented out.

In addition to some European countries, Beili also owns this technology.

Academician Ning nodded and said: "I agree. Compared with single carrier and dual carrier, no carrier is of course more suitable."

"But have you ever thought about it?"

"We in Xia State do not have carrierless technology. We have to rent technology from outside, but this way we are subject to others."

"If they jam our technology, then our Li-Fi won't work."

"Don't forget the Wi-Fi Alliance."

"If we wait until we release Li-Fi, the Wi-Fi Alliance can easily prevent Li-Fi from being released."

"Therefore, Li-Fi research must be completely domestically produced and independent."

After hearing this, Ye Fei felt very heavy in his heart.

Complete domestic autonomy is easy to say but difficult to implement.

In the field of communications, foreign countries are much stronger than Xia Guo.

Whether it’s materials or technology.

It was very difficult for Xia Guo to break out of the encirclement.

In particular, carrierless technology is completely domestically produced. Since Xia State does not have carrierless technology, new carrierless technology must be developed.

After a long while, Ye Feidao said: "Academician Ning, then we will develop a new carrier-free technology."

Academician Ning's eyes lit up when he heard this, and then he said seriously: "Ye Fei, do you know how difficult it is to develop new carrier-free technology?"

New carrierless technologies require the search for suitable short pulse carriers.

But not all short pulse carrier channels are suitable for wireless communications.

The short-pulse carrier channels that can be easily found have been found long ago.

Short pulse carriers, which are not easily found, are very difficult to find.

"I know!" Ye Feidao said, "But if you don't do it, you will never know whether it will succeed. I believe I can do it."

Academician Ning nodded and smiled: "This is what I am waiting for. I came to you for two purposes."

"The first purpose is to provide short pulse technical support based on my previous research direction."

"The second purpose is to develop new carrier-free technology, which mainly requires you to develop it."

"I'm happy for you to come up with new carrier-free technology."

"We Xia Guo researchers should have an indomitable spirit. The more difficult we are in, the less we can lose."

"That's right." Ye Feidao said: "Countless of our ancestors told us that we Xia people cannot lose. No matter how difficult it is, we should grit our teeth and persevere."

Academician Ning nodded and said: "Very good!"

Academician Ning liked Ye Fei as much as he liked him. He liked such a low-key and tenacious person.

Especially Ye Fei is still young, promising and talented.

After the matter was settled, Academician Ning convened a meeting with everyone in the institute!

There are thousands of researchers at the Wireless Communication Technology Research Institute, and the meeting takes place in a large lecture theater.

Academician Ning and Ye Fei sat on the stage. Academician Ning said: "Everyone, after discussion between Professor Ye and I, we decided to change the research direction."

The people below were talking quietly to each other for a moment, and it quickly became noisy.

Academician Ning said: "Quiet!"

After it became quiet down below, Academician Ning said: "Our previous research direction was to use single-carrying paths, but now we have changed to uncarrying paths."

“But because we don’t have carrierless technology.”

"If we don't want to be trapped by technology, we must be completely independent and domestically produced."

"So, we need to develop new carrier-free technology."

"Ugh..." The people below exclaimed, and many people looked at Academician Ning in disbelief.

Someone stood up and said, "Dean, I object. Many countries have developed carrierless technology, but how many have been successful?"

"We can definitely rent carrierless technology from other countries, develop Li-Fi first, and then consider carrierless technology."

"We can't even develop Li-Fi, so we just want to develop carrier-free technology. So when will our Li-Fi be developed?"

"Dean, Li Bo is right, we should develop Li-Fi first and then consider other technologies."

"Li-Fi is our ultimate goal. We can rent the rest of the technology from other countries."

"I don't agree with your point of view. The dean is right. Don't you know the importance of Li-Fi?"

"This is about 5G!"

“Wi-Fi7 can restrict 5G, and Li-Fi can counter Wi-Fi7.”

"As long as Li-Fi is developed, it will not work whether it is Wi-Fi7 or Wi-Fi8."

"Then Li-Fi cannot be stuck technically."

"So, Li-Fi must be completely domestically produced and autonomous."

"What Xiao also said is that we must completely make domestic products independently."

"Do you know how difficult it is to use carrier-free technology? We can find countries with good relations with Xia to cooperate."

"..."

It was like a debate. One side wanted to use foreign technology, while the other wanted to make it domestically.

In fact, what both parties said is quite right.

Lending technology from abroad can save a lot of work and allow Li-Fi to be developed as quickly as possible.

But these people only look at the present and do not take a long-term view.

Complete domestic production and autonomy, although very laborious, may even be far away from research and development.

But this group of people has a long-term vision and thinks a lot. In terms of pros and cons, completely domestically produced products have more advantages.

After a long time, Academician Ning said: "Okay, everyone, stop!"

After everyone calmed down, he said: "Everyone, you have to think about the advantages of complete domestic production and independence. What will happen if we develop Li-Fi but are stuck on key technologies?"

"Have you ever thought about this?"

"You said you would cooperate with countries that have good relations with our Xia country. You must know that there are only interests and no friendship between countries."

"It is better to seek help from others than to ask for yourself. When it comes to Li-Fi, I insist on complete domestic production and independence. No core technology can be leased from abroad."

Seeing that many people still disagreed with Academician Ning's views, Ye Fei said, "Academician Ning, let me say a few words!"

"Okay!" Academician Ning said, "Professor Ye will say a few words."

Ye Fei smiled and said, "Everyone, I'm new here and I made some mistakes. I hope you'll forgive me."

"First of all, I support complete domestic autonomy."

"You all know the advantages of completely domestically produced products, so I won't go into details."

"The most difficult thing to achieve complete domestic independence is the carrierless technology. The R\u0026D director of this technology was given to me."

“The research and development of carrierless technology is mainly to find short pulse carrier channels through short pulse technology.”

"I have studied short pulse technology for many years and participated in many national key scientific research projects. Most of them were short pulse technology."

"So I'm very confident in finding short-pulse carrier channels."

Seeing that many people didn't believe him, Ye Fei said, "How about this? People who want to develop carrierless technology with me can do research with me, and the rest will continue to research and develop Li-Fi."

Academician Ning said: "I agree with Professor Ye. Since everyone has different opinions, then we will work in groups."

After the meeting, many people came to Ye Fei to report, and they were all people who agreed to complete domestic autonomy.