Title: Spatial Reuse for Practical Scenarios: Iterative Power Adjustment from Distributed Contour Estimation and Propagation
Authors: Pollin, Sofie
Adams, Bart
Bahai, Ahmad #
Issue Date: 19-May-2008
Publisher: IEEE
Host Document: IEEE International Conference on Communcations
Conference: IEEE International Conference on Communications location:Beijing, China date:19-23 May 2008
Abstract: The number of wireless networks that coexist in
space is increasing steeply. To allow coexistence while avoiding
interference, it becomes important to properly characterize the
propagation contour where the received power of wireless trans-
mitters reaches a certain threshold. Detailed channel modeling
taking into account the specificities of typical urban scenarios
is however a very complex task. Thanks to the widespread use
of wireless access technology, it becomes feasible to use network
nodes to estimate and communicate these propagation contours.
In this paper, we propose a lightweight practical scheme for local
contour estimation of a given transmitter. The local estimate is
efficiently propagated to all other secondary transmitters that
can then meet interference constraints optimally, i.e., without
having to consider large safety margins that limit spatial reuse
gains. This optimality is obtained through iterative power control
based on true propagation contour distances and local pathloss
estimates. The overhead of the estimation and communication
phases is simulated to be close to linear in the number of nodes,
so that the solution scales well. The scheme can be used for
optimal power control in practical wireless networks, or for
the deployment of secondary networks in areas with primary
transmitters that should be protected.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Informatics Section
ESAT- TELEMIC, Telecommunications and Microwaves
# (joint) last author

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