Keeping the airwaves going on the big day: Behind-the-scenes story of the A80 parade

Cover every street, measure every wave

To ensure uninterrupted signal, more than 1,700 new Viettel broadcasting stations were deployed to serve the national holiday. The stations were densely located in key areas, with a new station every 100 meters. Many stations were brought in by specialized vehicles and installed at night so as not to affect urban traffic.

Engineers split into teams, working in shifts to measure signals, configure coverage, and test connections. Each station is customized for specific conditions: high-traffic areas, areas with many obstacles, or points where signal conflicts are likely to occur. Some locations required up to three attempts to connect.

Network Traffic Prediction Using Artificial Intelligence

The most difficult problem is not the number of stations, but that no one can predict exactly how many people will actually flock to Ba Dinh Square and at what time.

To prepare, the engineering team used the netEvent system, an artificial intelligence tool specifically designed for large events. The system analyzes data from newspapers, social networks, weather forecasts, browsing history and online interest levels, thereby building a map to predict network traffic in real time.

From this data, many scenarios were built and tested: Mass livestreaming, continuous image sharing, simultaneous TV360 access... For each situation, Viettel provided backup plans: Transferring traffic, adding bandwidth, activating auxiliary stations. All were tested in advance like a rehearsal without an audience.

Keep your data streams safe

The network, which serves millions of simultaneous visits, also faces cybersecurity risks, especially DDoS attacks. The security monitoring center is activated full-time many days before the holiday, continuously monitoring for unusual signs to intervene promptly.

In addition, a special protection tool called A2 is put on standby to protect sensitive areas. This is a high-level security layer, combining an automated system with a specialized force. While people are sending greetings via text message or sharing family photos on social media, this layer of protection is still operating silently, ensuring every bit of data is safe.

The whole technical team ran behind the scenes for the moment to be on air for a few minutes.

In the parade, the appearance of the Truong Son missile complex, the VUC5 and VCU5 electronic warfare systems was a notable highlight. To make these weapons appear properly on television, dozens of Viettel technical teams worked for many weeks.

Keeping the airwaves going on the big day: Behind-the-scenes story of the A80 parade - 2

From the control software, radar, mechanics to the communications department, everyone is present behind the scenes to check every function, test stability, fine-tune data and ensure the system operates perfectly even in the few minutes of being on. Even a small incident can affect the image of a defense industry brand, so no one can afford to be careless.

Feelings of hundreds of engineers: High pressure, but pride is above all

For many engineers, seeing the product they designed, assembled, and coded appear on national television is a special feeling. Some say that even a small error in a signal wire can disrupt the entire network. But when everything works smoothly, the joy is indescribable.

To keep the network stable during the holiday, hundreds of Viettel engineers have been working hard to prepare for many months.

For them, the A80 event is not just a job, but a moment of standing behind the scenes of a historic moment. And each connection, each data stream running through the system also contributes to creating a complete National Day. When the ceremony ends, the emotions seem to explode as all the pressure disappears, leaving only the pride of having contributed to the national festival.

Ha An

Source: https://vtcnews.vn/giu-mach-song-trong-ngay-hoi-lon-cau-chuyen-hau-truong-dieu-binh-a80-ar964542.html