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  • CWNP

Wireless Field Day 3 - Aruba Networks

Aruba Networks (Aruba for short) provides enterprise-grade Wi-Fi equipment supporting high density deployments indoors and outdoors. The demonstrated multicast-to-unicast conversion for streaming video as well as multi-client throughput tests including iPads, iPhones and laptops. Continue reading...

  • CWNP

Wireless Field Day 3 - Meraki

Meraki opened their presentation by sharing their continued growth numbers. They have grown 2-3 times year over year and the have hired new staff with major expansions in R&D. Expanding customer support has been a large focus during this time of growth. Continue reading...

  • CWNP

Wireless Field Day 3 - Ruckus Wireless

Ruckus Wireless is a WLAN vendor with a heavy focus on antenna and transmission technologies that use standards-based 802.11 communications but with proprietary hardware implementations that provide for directional links to clients (to over simplify what they do). Marcus Burton, much to our loss at CWNP and to Ruckus Wireless' gain, started out the presentation. Continue reading...

  • CWNP

Wireless Field Day 3 - MetaGeek

MetaGeek is a company that specializes in wireless analysis software. From their free or low cost insider application to the Chanalyzer Pro application, they demonstrated the capabilities and potential of their solutions. Continue reading...

  • CWNP

Wireless Field Day 3 - WildPackets

The WildPackets staff began the presentation with a very brief overview of their history. This introduction provided an overview of the company and insights into their organizational culture. Then we quickly moved onto the good stuff - announcements and technical information. Continue reading...

  • CWNP

Shared Key Authentication - WLAN Foundations

Shared Key authentication was thought to be more secure than Open System authentication at the time of their joint specification in the IEEE 802.11-1997 standard. This was due to the fact that Shared Key authentication verified the requestor using a real authentication method whereas Open System authentication simply authenticated the requestor regardless of identity. However, Open System authentication leaves the door open for the use of advanced and evolving security technologies that run across the association created using null authentication.

Continue reading...

  • CWNP

802.11 Commentary Part 4 - WLAN Basic Architecture

This video introduces initial concepts in 802.11-2012 Clause 4.3. These include BSS, IBSS, ESS, DS, DSM and Portals. Continue reading...

  • CWNP

Carrier Waves – WLAN Foundations

While the exact phrase carrier wave may not be referenced on the CWNP exams and training materials (though carrier signal is), it is an important concept in wireless communications. Wireless engineers and technicians must deal with many different wireless technologies. In the 802.11 standard (as amended) alone, you are dealing with multiple modulation techniques, which are methods used to impose information onto carrier waves to create a carrier signal. Therefore, a brief summary of carrier waves and why they are important is in order. Continue reading...

  • CWNP

Bluetooth Devices and AFH - WLAN Foundations

In the WLAN Foundations series, I will be covering the foundational concepts that longtime WLAN engineers have placed in the deepest recesses of their minds and think little about these days. The WLAN Foundation series blog posts will be short and to the point. In this post, I explain Bluetooth AFH. Continue reading...

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