Leith, D. J. and Clifford, P. and Malone, D.W.
WLAN Channel Selection Without Communication.
Computer Networks, 56 (4).
In this paper we consider how a group of wireless
access-points can self-configure their channel choice so as to
avoid interference between one another and thereby maximise
network capacity. We make the observation that communication
between access points is not necessary, although it is a feature
of almost all published channel allocation algorithms. We argue
that this observation is of key practical importance as, except
in special circumstances, interfering WLANs need not all lie
in the same administrative domain and/or may be beyond
wireless communication distance (although within interference
distance). We demonstrate the feasibility of the communicationfree
paradigm via a new class of decentralized algorithms that
are simple, robust and provably correct for arbitrary interference
graphs. The algorithm requires only standard hardware and we
demonstrate its effectiveness via experimental measurements.
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