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How to calculate your Wi-Fi bandwidth need

by | Mar 30, 2015 | Blog, Networking, public wi-fi, Wi-Fi management, WLAN | 0 comments

 In this blog post, we will show you how to calculate your Wi-Fi bandwidth need, so as to rely on a well performing network experience.

Bandwidth refers to the rate of data transfer in a network and is measured in bits per second (bit/s). In order to rely on a fast and effective network, it is extremely relevant to know how many bits per second are transmitted across your network. Indeed, a low bandwidth implies slow connection and it negatively affects you network perfomance. Let’s see through a practical example the 3 steps to follow in order to effectevely measure your Wi-Fi bandwidth need.

 

1. Calculate how many devices will connect to the Wi-Fi at the same time.

If a hotel has 18 rooms, for 2 people each, the hotel has 36 guests if it’s full-booked. If each guest has 1.2 devices, you have around 43 devices in total. We can suppose that only 20 of 43 are connected at the same time.

 

2. Select the services that the guests expect to use.

 

E-mail, instant messaging Light usage
Web browsing Light usage
Facebook Light / Medium usage
Youtube Medium usage
Upload photos Medium usage
Skype Medium / heavy usage
Google Drive, Dropbox… Heavy usage
Video streaming (HD) Heavy usage


3. Calculate your bandwidth need

 

Number of concurrent devices (light usage) x 500 Kbps

Number of concurrent devices (medium usage) x 900 Kbps

Number of concurrent devices (heavy usage) X 2000 Kbps

 

Our example

 

We have 20 concurrent devices.

(10 X 500 Kbps) + (8 X 900 Kbps) + (2 X 2000 Kbps) =

5000+7200+4000 = 16200 Kbps = 16.2 Mbps

16.2 Mbps is our approximate Wi-Fi bandwidth need.

 

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Related articles:

 

Bandwidth Control for your cloud-based Wi-Fi

The 5 features you need for your Wi-Fi network

Digital services need to be clearer on data usage