Sparring Partners | How energy efficient is Wi-Fi?
A conversation between Claus Hetting at Wi-Fi NOW, and Monica Paolini at Senza Fili
We had many Sparring Partners on energy efficiency in wireless, but none was on Wi-Fi. This is a glaring omission since Wi-Fi accounts for the majority of wireless traffic – in most countries, it hovers at around 80% of wireless traffic. Yet, there is much less data (and debate) on Wi-Fi energy efficiency than on 5G or LTE – and there are reasons for this.
Claus Hetting at Wi-Fi NOW helped us fill this gap in the next Sparring Partners. We debated on the energy efficiency of Wi-Fi, and on how it compares to that of 5G and LTE. We also talked about how efficiency changes in different use scenarios and how we should measure efficiency.
Once you register, you can watch the entire discussion, or choose among these sections (and get links to the reports we discuss):
02:54 Claus introduces himself
03:34 Energy efficiency and energy consumption
04:08 6GHZ and energy efficiency
05:51 Reports by WIK sponsored by the Wi-Fi Alliance and by Analysys Mason sponsored by Huawei
07:49 Router and AP power consumption, compared to 5G
09:54 Complexity in assessing energy efficiency, macro/outdoor versus indoor coverage
11:21 Is there a market for small cells?
13:15 How to compare Wi-Fi to 5G/cellular
14:18 Would operators deploy 5G in the 6GHz in scale?
15:44 Wi-Fi APs don’t use much energy, sleep mechanisms
20:59 Is indoor more efficient than outdoor infrastructure?
24:32 Offload, power and propagation limitations in 6GHz
25:51 Offload benefits everybody
27:01 Don’t overuse sleep mechanisms
28:38 Cellular indoor coverage is not good enough
29:36 Managing sleep in Wi-Fi
33:59 Comments on the WIK / Wi-Fi Alliance report
35:41 Comments on the Analysys Mason / Huawei report
36:46 What mmWave teaches us, spectrum sharing
40:03 Quoting Ajit Pai on offload
41:11 More on offload and on switching between Wi-Fi and cellular (much better than it used to be), PassPoint
47:19 Orange report on Wi-Fi efficiency is very good
49:37 Energy efficiency of FTTH, the incremental impact of adding a smartphone to the home network
51:07 Do models help us understand energy efficiency?
51:43 “Reporting instead of doing is greenwashing,” the Orange report says
53:52 Ofcom says 73% of Android traffic is through Wi-Fi
56:05 Easier to reduce energy consumption by reducing travel than cutting on Wi-Fi