CTS 019: WiFi Predictive Modeling

In This Episode

The first episode for 2016 is going to be about Wi-Fi predictive modeling – how I plan my wireless networks.

But before we get into the meat of the episode, I’d like to share my new year resolutions:

  • CWAP
  • CWDP
  • More learning
  • More podcasts!

Man, I have a lot to work on. What are your resolutions?

My 2016 predications:

  • LTE over Wi-Fi*I meant to say LTE-U and LAA* to gain traction
  • We’ll be working with more poor Wi-Fi
  • Someone will be fined over blocking Wi-Fi
  • Wi-Fi calling will take off

Predictive Modeling

Predictive modeling is a method in which a software application is used to predict the number of access points required on a floor plan based on user inputted capacity and coverage requirements.

As the phrase says, it is a PREDICTIVE model. A wireless installation should be verified to end user requirements.

My application of choice is Ekahau Site Survey.

Some things to consider in your predictive model using Ekahau:

  • Setting Capacity and Performance requirements
  • Setting Coverage requirements
  • Importing a floor plan
  • Setting scale and alignment points
  • Adding a coverage area
  • Adding access points
  • Optimize placement
Configure your network requirements.

Configure your network requirements.

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CTS 018: Get Off My Channel

In This Episode

I want to talk about channel planning and channel re-use. More importantly, why you would want to even consider this, how it should be done and what tools you can use to do it.

As an introduction, I briefly go over the available channels in the United States – specifically the non-overlapping channels in both 2.4 GHz and 5 GHz frequencies.

At the end of the episode, I go into the importance of planning. My tool of choice here for wifi planning is Ekahau Site Survey.

Links and Resources Mentioned

Channel Allocation in 5 GHz.

Channel Allocation in 5 GHz.

Viewing channel overlap in Ekahau Site Survey

Thanks For Listening

Merry Christmas and Happy New Year! Thank you for being part of Clear To Send. This podcast would be nothing without you. You have helped make this podcast successful.

Click on the share buttons below to increase the subscribers to the podcast and help us share the knowledge of WiFi.

CTS 017: Francois Verges and Roaming

In This Episode

In episode 17 of the Clear To Send I would like to welcome Francois Verges of SemFio Networks.

We talk about an introduction to roaming.

Some of the topics we discuss are what customers need to know about WiFi roaming, how clients decide to roam, and what it means to roam.

Sometimes there are also problems to solve about roaming. What happens when a client doesn’t roam? We talk about some amendments that help with improved roaming.

Links and Resources Mentioned

CTS 016: RF Fundamentals

In This Episode

I hope everyone had a great Thanksgiving weekend. Before getting into the episode, I wanted to thank you, the listener, for downloading and listening to episodes of Clear To Send. Without you, this podcast would be nothing.

Also, thanks to my previous interview guests for being part of the podcast:

  • Eddie Forero
  • Adrian McCaskill
  • Adrian Granados
  • Jussi Kiviniemi
  • Todd Smith
  • Jennifer Huber
  • Lee Badman

Thanks @wifichef for mentioning what he was thankful for:

RF Fundamentals

In this main segment, I talk about RF Fundamentals.

There are four characteristics of RF signals and that is:

  • Wavelength
  • Frequency
  • Amplitude
  • Phase

There are nine RF behaviors to know about:

  • Absorption
  • Reflection
  • Scattering
  • Refraction
  • Diffraction
  • Attenuation loss
  • Free Space Path Loss
    • Free space path loss formula

      Free space path loss formula from Wikimedia

  • Multipath
  • Gain
Sine Wave

A Sine Wave

Links and Resources Mentioned

Li-Fi in an office

Example of Li-Fi Use

Thanks For Listening

Thank you to you for listening to the podcast. I appreciate your time! Please rate and review the podcast on iTunes. I really appreciate. Leaving ratings and reviews helps others join the podcast and become part of the wireless community.

What do you think about Li-Fi? Let me know in the comments.

CTS 015: Authentication and Association

In This Episode

Ep. 15 will be a solo show this week. I’m going to go a little technical and discuss how wireless devices connect to a wireless network through authentication and association.

Authentication and association occurs in three steps:

  1. Unauthenticated and unassociated
  2. Authenticated and unassociated
  3. Authenticated and associated

This is the 802.11 state machine. Authentication must occur before association. A device can never be unauthenticated and associated.

The authentication and association process

802.11 State Machine

Links and Resources