TitoloTransmission range and frame error process in rural area Wi-Fi networks
Autore/iBarsocchi, Paolo    ( WN )
Affiliazione ( cnr )   CNR-ISTI, Pisa
Autore/iOligeri, Gabriele    ( WN )
Affiliazione ( cnr )   CNR-ISTI, Pisa
Autore/iPotort́, Francesco    ( WN )
Affiliazione ( cnr )   CNR-ISTI, Pisa
E-Mail (compilatore/referente)paolo.barsocchi@isti.cnr.it
Lingua sommarioEnglish
Sommario in IngleseFew researchers have performed measurements of a Wi-Fi channel at the frame level in order to understand performance issues by relating frame errors and signal strength. This paper presents results relative to ad hoc measurements in a rural environment. We show that a simple double regression propagation model like the one used in the ns-2 simulator can miss important transmission impairments that are apparent even at short transmitter-receiver distances. We propose a two- ray propagation model which improves on those commonly used for simulation purposes. Frames were transmitted and received by using two cheap laptops with standard Linux drivers. Measurements also show that packet loss at the frame level is a Bernoullian process for time spans of few seconds, and that longer time spans exhibit a more complex behaviour, meaning that the 2-state Markov-modulated process often used in the literature is not a good match for rural areas.
Lingua documentoEnglish
SoggettiPropagation model
SoggettiFrame eror model
TipoTR Technical Report
Data di creazione2006-12-13
Numero documento/Codice originaleercim.cnr.isti//2006-TR-43
NoteThe document has been submitted to : VTC2007
Data inserimento18/4/2007
Data modifica13/2/2012
ID Modulo Commessa4172 - ICT.P01.008.002 - 74 - Tecnologie e sistemi wireless eterogenei interconnessi
TipologiaRapporti tecnici
Disciplina di riferimentoComputer Science & Engineering
Area di valutazione01 - Scienze matematiche e informatiche

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