Leith, Douglas J. and Clifford, P. (2006) A self-managed distributed channel selection algorithm for WLANs. In: 4th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, 2006. IEEE, pp. 1-9. ISBN 0-7803-9549-2

Download (192kB)

Abstract

Abstract—In this paper we consider the problem of a wireless LAN selecting a channel to minimise interference with other WLANs. We focus on interfering infrastructure-mode networks, where each access point (AP) or base station has a wired backhaul link. We introduce a new fully distributed and selfmanaged channel selection algorithm that does not require direct communication between APs nor explicit estimation of the network interference graph. The sole information required by the algorithm is feedback to each WLAN on the presence of interference on a chosen channel; such feedback is already commonly provided by WLAN protocols such as 802.11. We establish that convergence of the distributed algorithm is guaranteed provided that the channel selection problem is feasible. Extensive simulation results are presented that demonstrate rapid convergence under a wide range of network conditions and topologies. While the scope of the present paper is confined to nfrastructure networks with static topology, the utility of the proposed algorithm in situations where the network topology is time-varying is briefly discussed.

Item Type:	Book Section
Additional Information:	"©2006 IEEE. Reprinted from 4th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, 2006. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1666484&isnumber=34865
Keywords:	Self-managed channel selection algorithm; Interfering infrastructure-mode networks; Wireless networks; WLAN; 802.11; WiOPT 2006; Hamilton Institute.
Academic Unit:	Faculty of Science and Engineering > Computer Science Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	1785
Depositing User:	Hamilton Editor
Date Deposited:	18 Jan 2010 12:24
Publisher:	IEEE
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

Repository Staff Only(login required)

Item control page

Downloads

Origin of downloads