The Emperor has no problem: Is there really Wi-Fi congestion at 2.4 GHz?

Vries, Jean Pierre De; Achtzehn, Andreas; Petrova, Marina; Mähönen, Petri

doi:10.2139/ssrn.2241609

Cited by 5 publications

(2 citation statements)

References 18 publications

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“…Although there is plenty of anecdotal evidence that many users are experiencing performance issues in such cases [2], surprisingly little research has been done so far to quantify the pervasiveness and severity of the problem [3]. It is therefore too early for blanket solutions that require large investments and changes in regulation and the operators' networks [3,4]. Besides, given the relatively short range of most techniques working in the unlicensed bands, the problem is usually confined to specific locations.…”

Section: Introductionmentioning

confidence: 99%

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A pathway to solving the Wi-Fi tragedy of the commons in apartment blocks

Hartog¹,

Raschellà

Bouhafs

et al. 2017

2017 27th International Telecommunication Networks and Applications Conference (ITNAC)

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Surprisingly little research has quantified the severity of Wi-Fi congestion in densely populated areas. We performed a high-fidelity 3D simulation of the performance of a realistic Wi-Fi deployment in a typical apartment block. Our results show that congestion leads to significant loss of performance, and that current channel selection procedures have only little effect. Also the strategy that is mostly applied today, i.e. to deploy additional repeaters and Access Points (APs), fails. As this is a typical example of the "Tragedy of the Commons", some form of collaboration between AP operators is needed to solve the problem. New channel selection algorithms that optimize Wi-Fi performance on a system level then become possible which, for instance, minimize the mutual interference impact on all APs involved. We validate that such an algorithm indeed leads to an optimized as well as fair assignment, which is a necessary first step towards solving the Tragedy.

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Section: Introductionmentioning

confidence: 99%

“…This is particularly the case in apartment blocks, where Wi-Fi networks are managed by more than one operator, the operators often being the end users themselves. Therefore, as others concluded before [3], the issue must be treated as a joint engineering, regulatory, and economic problem.…”

Section: Introductionmentioning

confidence: 99%