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Experimental Evaluation of Techniques to Lower Spectrum Consumption in Wi-Red

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posted on 2022-11-30, 05:01 authored by Gianluca CenaGianluca Cena, Stefano ScanzioStefano Scanzio, Adriano Valenzano

Seamless redundancy layered atop Wi-Fi has been shown able to tangibly increase communication quality, hence offering industry-grade reliability. However, it also implies much higher network traffic, which is often unbearable as the wireless spectrum is a shared and scarce resource. To deal with this drawback the Wi-Red proposal includes suitable duplication avoidance mechanisms, which reduce spectrum consumption by preventing transmission on air of inessential frame duplicates.
In this paper, the ability of such mechanisms to save wireless bandwidth is experimentally evaluated. To this purpose, specific post-analysis techniques have been defined, which permit to carry out such an assessment on a simple testbed that relies on plain redundancy and do not require any changes to the adapters' firmware. As results show, spectrum consumption decreases noticeably without communication quality is impaired. Further saving can be obtained if a slight worsening is tolerated for latencies.


Regione Piemonte and the Ministry of Education, University, and Research of Italy in the POR FESR 2014/2020 framework, Call “Piattaforma tecnologica Fabbrica Intelligente”, Project “Human centered Manufacturing Systems” (application number 312-36)


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  • Italy