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Hans-Dieter Wahl
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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The Postman always rings twice

The Postman always rings twice

Providing a wireless LAN for guests and customers is mandatory in many economic sectors where various business interests are pursued. In hotels, wireless LAN has been established for a long time. Cafés and system catering try to encourage guests to stay longer by offering wireless LAN and thus increase sales. However, a simple and open access point for wireless LAN is not suitable for commercial...

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Wireless LAN in companies, a luxury or a must-have?

Wireless LAN in companies, a luxury or a must-have?

For some companies the question arises whether it is worth having wireless LAN in the company. Others are worried that a wireless LAN network could cause security risks and even attacks on IT systems could be easier. For those who use tablet PCs in companies, wireless LAN is mandatory to provide Internet connectivity. Nevertheless, even standard notebooks become smaller and more and more...

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802.11ac Migration

802.11ac Migration

802.11ac is a new wireless LAN standard for meeting the demands of higher bandwidth. This new standard is an update of the .11n standard and downward compatible to wireless LAN clients operating with older standards such as 802.11a/b/g/n. The new standard uses exclusively the 5 GHz frequency. Access Points supporting .11ac should therefore always be dual radio access points for using both 2.4...

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WiFi HaLow , what is this all about?

WiFi HaLow , what is this all about?

The definition of new wireless LAN standards is a continuous process for creating, as well as improving applications and for making them more secure. The best-known wireless LAN standards by IEEE are certainly 802.11n for wireless LAN applications up to 600 Mbit/s and of course the 802.11ac standards which have recently been  introduced into the market, allowing applications up to 6.7 Gbps....

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Customer analysis in traditional commerce

Customer analysis in traditional commerce

For a long time it has been common for online shops to analyze their customers’ and online shop visitors’ behavior in order to optimize the visitors’ shopping experience and to measure marketing activities. However, what possibilities does traditional commerce have? Currently there are different technologies which compete with each other. Already integrated RFID chips on shopping trolleys can...

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Three different solutions for WLAN management

Three different solutions for WLAN management

Already Albert Einstein learned during his job as an electrician at the Oktoberfest in Munich in 1896 that a straightforward solution is not always the best way to solve a problem. Today, it is just the same thinking of the most suitable WLAN management solution.  Years ago the question arose whether to manage a wireless LAN or not. Today, this is history because all companies demand permanent...

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The first wireless LAN /WLAN

The first wireless LAN /WLAN

Everybody at least in Germany and probably in some typical German tourist centers knows the famous Song by Paul Kuhn “There is no beer on Hawaii” but not many people know that a network very similar to the wireless LAN available nowadays was already set up in 1969 by the University in Hawaii. The network’s name was “ALOHAnet” and connected different parts of the university on the island Oahu....

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WLAN: What are high density networks?

WLAN: What are high density networks?

A high density network, can be summarized as a network designed for various or many WLAN clients. WLAN conservative planning approaches are designed to achieve a good and complete WLAN supply, and at the same time install as less access points as possible. In order to meet this goal in larger areas, usually a so-called Wireless Site Survey is carried out to ensure that wherever WLAN is required,...

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