2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

Effect of adjacent-channel interference in IEEE 802.11 WLANs

  • @INPROCEEDINGS{10.1109/CROWNCOM.2007.4549783,
        author={Eduard Garcia  Villegas and Elena  L\^{o}pez-Aguilera and Rafael Vidal and Josep Paradells},
        title={Effect of adjacent-channel interference in IEEE 802.11 WLANs},
        proceedings={2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2008},
        month={6},
        keywords={Frequency  Interchannel interference  Noise reduction  Resource management  Signal design  Signal to noise ratio  Telecommunication traffic  Telematics  USA Councils  Wireless networks},
        doi={10.1109/CROWNCOM.2007.4549783}
    }
    
  • Eduard Garcia Villegas
    Elena López-Aguilera
    Rafael Vidal
    Josep Paradells
    Year: 2008
    Effect of adjacent-channel interference in IEEE 802.11 WLANs
    CROWNCOM
    IEEE
    DOI: 10.1109/CROWNCOM.2007.4549783
Eduard Garcia Villegas1,*, Elena López-Aguilera1,*, Rafael Vidal1,*, Josep Paradells1,*
  • 1: Wireless Networks Group, Telematics Engineering Dept. Technical University of Catalonia (UPC) Barcelona
*Contact email: eduardg@entel.upc.edu, elopez@entel.upc.edu, rvidal@entel.upc.edu, teljpa@entel.upc.edu

Abstract

Frequency channels are a scarce resource in the ISM bands used by IEEE 802.11 WLANs. Current radio resource management is often limited to a small number of nonoverlapping channels, which leaves only three possible channels in the 2.4GHz band used in IEEE 802.11b/g networks. In this paper we study and quantify the effect of adjacent channel interference, which is caused by transmissions in partially overlapping channels. We propose a model that is able to determine under what circumstances the use of adjacent channels is justified. The model can also be used to assist different radio resource management mechanisms (e.g. transmitted power assignments)