TechBuzz

Wi-Fi Best Practices

© Aerohive Networks, Proprietary & Confidential

Gianluca Silvestri – System Engineer, Exclusive Networks

© 2014 Aerohive Networks © 2014 Aerohive Networks

Introduction to the course

Short

Simple

Easy to follow

There are always exceptions to the rule

2

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Pattern Comparison

3

More horizontal coverage

Mo

re d

ow

nw

ard

s v

ertic

al c

ov

era

ge

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Association vs. contention

4

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WiFi Don’ts

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WiFi Don’ts

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WiFi Don’ts

7

+5 m

in h

eig

ht (1

6.5

ft)

+8

m in

he

igh

t (25 ft)

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WiFi Don’ts

8

+3m (10ft) or more in between APs or external antennas.

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WiFi Don’ts

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Maximum Tx power

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WiFi Don’ts

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WiFi Don’ts

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Basic AP placements: walls

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Basic AP placements: walls

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Basic AP placements: walls

14*adjust according to channel width.

ch 36

ch 36

ch 36

ch 48

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Basic AP placements

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Multiple room design

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WiFi Don’ts

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Multiple room coverage

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The combination of Omni antennas and low wall

attenuation is a sure way to trigger CCI.

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High Density

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AP in a room is tricky, high risk/high reward deployment. To make it work it

is necessary to:

• Ensure the environment supports it (high attenuation walls).

• Limit the Tx power of the AP just enough to serve in-room clients.

• Use APs with integrated antennas or external directional antennas.

• Use 20 MHz channels and separate the neighboring channels as much

as possible.

• Disable lower data rates

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IMPORTANT!!!!

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Use environment/material to your advantage

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Channel width on 5GHz - 40MHz

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Ch36 Up

(36+40)

Ch48 Down

(48+44)

Ch149 Up

(149+153)

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Channel width on 5GHz - 20MHz

22

Ch36 Ch161 Ch48

Ch149 Ch40 Ch153

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Using DFS channels

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Do’s

High density indoor environments

like:

• Lecture halls

• Conference centers

• Schools

• Hotels

Primary use is DATA

Don’ts

Mission critical deployments with real time applications like Voice and Video in Hospitals, Logistics,

Manufacturing, etc.

Always avoid it near the helipads, airports, marinas, etc., where there are weather radars present.

Thank Yougsilvestri@exclusive-networks.com