A Fault-Tolerant
Dynamic Channel Allocation Protocol for Cellular Networks
Abstract: Recent demand for
mobile telephone service has been growing rapidly while the electro-magnetic
spectrum of frequencies allocated for this purpose remains limited. Any solution
to the channel assignment problem is subject to this limitation, as well as the
interference constraint between adjacent channels in the spectrum.
In this talk, we
propose a distributed fault-tolerant channel allocation schemes which works
well under mobile host failures, base station failures as well as communication
link failures. The proposed algorithm is based upon the mutual exclusion model
where the channels are grouped by the number of cells in a cluster and each
group of channels can not be shared concurrently within the cluster. We present
our scheme and discuss its performance evaluation using an extensive set of
simulation experiments.