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The advantages of Wi-Fi 6 – 802.11ax

The advantages of Wi-Fi 6 – 802.11ax

The Wi-Fi 6 technology set out in the 802.11ax High Efficiency (HE) standard is the natural successor of the wireless Wi-Fi 5 technology or 802.11ac standard, known as Very High Throughput (VHT). This new implementation has been designed to work in high user density environments (for instance, a stadium, an airport, or branch offices with many Wi-Fi devices). Other characteristics are latency...

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Roaming in 802.11k/v/r Wi-Fi environments

Roaming in 802.11k/v/r Wi-Fi environments

Wireless networks include the concept of roaming. This word refers to a station’s movement within a wireless network.   This is possible in Wi-Fi environments when multiple Access Points (APs) provide a wireless network service on the same Wi-Fi network. Mobile stations switch AP when they experience a weak signal. The decision to roam to another AP with better signal quality in the same...

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Neighbor monitoring in Wi-Fi access points

Neighbor monitoring in Wi-Fi access points

Today, all machines need to communicate with each other. The fact that they are heavier than other technologies is the reason why the Internet has become so fundamental in our everyday lives. This would never have been possible, however, without wireless communication, that is, devices capable of connecting to each other using electromagnetic waves in the air. In the field of Wi-Fi environments,...

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A review of the physical principles behind the Wi-Fi /5G wireless revolution

A review of the physical principles behind the Wi-Fi /5G wireless revolution

Following on from a previous article on DSL and its scientific bases, I now want to review the fundamentals of another technology: radio. As with a DSL, the ability to transmit data in any radio communications system – from the very first Marconi experiments to 5G networks – is bound by Shannon’s equation, based on the channel’s bandwidth and signal-to-noise ratio. In radio, we also have another...

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WPA3: Improved Wi-Fi security

WPA3: Improved Wi-Fi security

The nature of electromagnetic waves is such that anyone in a wireless network can receive the data sent over the air. With high-gain antennas, it is possible to listen in on the data that passes through an office from outside the building. That is why, right from the outset, a great deal of importance has been attached to wireless network security. By 1999, the first version of the IEEE 802.11...

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WPA3, the new safety standard for safer Wi-Fi networks

WPA3, the new safety standard for safer Wi-Fi networks

Nowadays, all offices, hotels, parks, hospitals and above all private domiciles, have Wi-Fi connectivity for laptops, tablets and smartphones. Likewise, we must consider the new lines of intelligent domestic equipment, also connected and remotely managed via Wi-Fi. There is, however, a question we all ask ourselves: how safe are wireless networks? Should a hacker access our Wi-Fi, they could...

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Access to guest networks

Access to guest networks

Nowadays, all companies provide their customers with Wi-Fi in some form or another. We find it in shopping malls, airports, restaurants, offices and even on transport. It is fair to say that Wi-Fi has become a commodity. Most customers want to connect to Wi-Fi services in the simplest way possible. Therefore, their preferred methods of accessing them might be an open Wi-Fi network or a password...

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Unattended services managed remotely

Unattended services managed remotely

Nowadays, devices that are operated remotely (i.e., without local staff to verify their working conditions or act in the event of an incident) offer many services to the public.Some examples are: remote ATMs, billboards, ticket vending machines, etc. Generally speaking, companies that offer this kind of services have centralized monitoring mechanisms that ensure their smooth operation and allow...

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Why most 4×4 access points are not worth it

Why most 4×4 access points are not worth it

When selecting a new Wi-Fi infrastructure, business customers are often faced with a wide range of devices. Customers with an interest in technology will always ask for equipment that meets the latest technical standards. After all, the aim is to invest in the right technology. It seems clear that the current 802.11ac standard has become the benchmark for everything. But what then are Wave 2, 2×2 MIMO, 3×3 MIMO, and 4×4 MIMO, and why is there a new 802.11ad standard.

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