Clear To Send: Wireless Network Engineering

Latest Episodes:

CTS 175: Wi-Fi Security Updates with Hendrik Lüth Jun 24, 2019

Show notes

In this episode, we are interviewing Hendrik Lüth on the state of Wi-Fi security today. Hendrik works as a System Engineer for CANCOM in Germany. You can follow him on Twitter @DO9XE and on Linkedin. You can also visit and read his blog at https://linux-nerds.de/. Agenda Start conversation with the “2018” status of WiFi security WPA2 […]

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CTS 174: Takeaways From Cisco Live Jun 17, 2019

Show notes

Welcome to this episode where we do a quick recap of how Cisco Live went this year in San Diego. This is one of the few rare moments when both hosts are in the same city. Cisco Live Recap with Rasika and Stephen Check out this short video we recorded with Rasika and Stephen getting […]

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CTS 173: WiFi Medley 001 Jun 09, 2019

Show notes

This week’s episode is the eve of Cisco Live. Rowell & François will be headed to San Diego for a week of learning, recording, and networking with other likeminded individuals. In this episode, we talk about various topics of Wi-Fi. You can take a look at an example of sessions we’re looking forward to at […]

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CTS 172: Conference Wi-Fi Jun 03, 2019

Show notes

This Week In Wireless Rowell recorded a video on Wi-Fi 6 on David Bombal’s YouTube channel Long version: https://www.youtube.com/watch?v=uZMA4p00c9g Short version: https://www.youtube.com/watch?v=r62vs2uyQjM Huawei Huawei is temporarily pushed out of the Wi-Fi Alliance Wi-Fi Alliance is fully complying with the recent U.S. Department of Commerce order without revoking Huawei Technologies membership. Wi-Fi Alliance has temporarily restricted […]

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CTS 171: Designing Wi-Fi Networks In Higher Education May 27, 2019

Show notes

Recently, I joined the wonder folks at iBwave to deliver a webinar on the topic of designing Wi-Fi networks in Higher Education. Thanks so much iBwave for providing me the opportunity to discuss Wi-Fi design in front of their audience. The agenda items I cover in this webinar: Challenges we see today Approach to Wi-Fi […]

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CTS 170: APoS Site Surveys May 14, 2019

Show notes

Historically, AP-on-a-Stick (APoS) surveys were the only way to find out where to place the access points. We didn’t have any of the fancy software we have today to predict how the Wi-Fi signal will behave in our space. However, we still perform APoS today. In this episode, we will explain why we still use […]

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CTS 169: Just The Tech May 06, 2019

Show notes

Rowell and François were invited to Cisco Headquarters, along with many others, as part of the #JustTheTech event which was planned in coordination with the Wi-Fi 6 announcement that happened on April 29, 2019. It was a jam packed day of discussions with key people from Cisco. The folks in attendance for #JustTheTech were: Rowell […]

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CTS 168: OpenRoaming Apr 29, 2019

Show notes

With Wi-Fi 6 and 5G now taking the stage, one has to think – what about the coexistence of the two technologies? Rowell and François met together at Cisco HQ to speak with Jérôme Henry about OpenRoaming and Cisco’s vision of seamless roaming. Rowell and François participated at an event called #JustTheTech at Cisco HQ […]

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CTS 167: 802.11ax 1024-QAM & HE-MCSs Apr 22, 2019

Show notes

1024-QAM Evolution of the modulation techniques we are using today with 802.11ax (256-QAM). With 1024-QAM, we are now able to encode 10 bits per cycle on each subcarrier. The way we are able to do that is by increasing the number of different levels of amplitudes used to encode the data. If you want to […]

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CTS 166: 802.11ax HE Channel Access Apr 15, 2019

Show notes

There are multiple functions in which a client or AP can gain access to the channel. What we’re going to discuss is in addition to the HCF and DCF. TXOP duration-based RTS/CTS Intra-BSS or inter-BSS frame determination SRG PPDU determination Two NAVs MU-RTS/CTS EDCA using MU EDCA parameters GOOD NEWS, CTS IS NOT GOING ANYWHERE! […]

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