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You are here: Home / Appearances / Aerohive Networks Presents at Wireless Field Day 5

Aerohive Networks Presents at Wireless Field Day 5



Wireless Field Day 5


This date is August 7, 2013 at 11:00-13:00.

Thank you for watching! Recorded video will be posted to this page ASAP.


Aerohive Forecast: Cloudy With Enhanced Wi-Fi


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Tash Hepting and Abby Strong of Aerohive introduce their Wireless Field Day 5 presentation.

Personnel: Abby Strong, Tash Hepting

Aerohive Client Management Demonstration


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Kell van Daal demonstrates Aerohive’s client management technology.

Personnel: Kell van Daal

Aerohive ID Manager Demonstration at WFD5


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Tash Hepting of Aerohive demonstrates their ID manager technology.

Personnel: Tash Hepting

Aerohive Application Visibility and Control Presentation at WFD5


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Praveen Raghuraman of Aerohive introduce their application visibility and control technology.

Personnel: Praveen Raghuraman

Aerohive Application Visibility and Control Demonstration


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Abby Strong and Andrew Garcia of Aerohive demonstrate the application visibility and control technology in action.

Personnel: Abby Strong, Andrew Garcia

Matthew Gast Presents Multi-User MIMO in 802.11ac


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Matthew Gast’s presentation on Multi-User MIMO in 802.11ac, recorded on August 7, 2013, delves into the intricacies and future potential of the technology. Gast begins by humorously acknowledging the lack of physical products to demonstrate, as the technology was still in development stages, with expected industry rollout the following year. He outlines the four key features of 802.11ac: wide channels, more streams, 256 QAM, and multi-user MIMO, likening the achievement of three out of four features to a successful baseball game. Gast emphasizes the importance of beamforming in the second wave of 802.11ac, explaining that it allows for more efficient data transmission by focusing the signal towards specific users, thus enhancing overall network performance.

Gast explains the technical aspects of beamforming and multi-user MIMO, highlighting the shift from implicit to explicit beamforming in 802.11ac. Implicit beamforming relies on passive listening and adjusting based on perceived signals, which can be less accurate, especially with complex modulations like 256 QAM. Explicit beamforming, on the other hand, involves a protocol that measures the channel conditions, allowing for more precise signal steering. This process uses null data packets to derive channel measurements, which are then used to shape the transmission energy. Gast uses analogies and simple illustrations to explain the complex matrix math involved in beamforming, where the goal is to maximize signal strength in the desired direction while minimizing interference with other devices.

The presentation also touches on the practical implications and challenges of implementing multi-user MIMO. Gast notes that while the technology promises higher aggregate throughput by serving multiple devices simultaneously, it requires frequent channel measurements and sophisticated matrix calculations. He addresses questions about the compatibility of different data rates and encryption schemes within a multi-user MIMO environment, explaining that each device can operate at its optimal rate independently. The discussion also covers the industry’s readiness for 802.11ac, with delegates expressing concerns about client device support and the marketing hype surrounding the new standard. Gast concludes by acknowledging the collaborative efforts required between chip vendors and AP manufacturers to optimize beamforming and multi-user MIMO performance, emphasizing the importance of industry-wide cooperation and realistic expectations.

Personnel: Matthew Gast


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