Paper Info
Title
Distributed spectrum assignment for home WLANs
Abstract
We consider the problem of jointly allocating channel center frequencies and bandwidths for IEEE 802.11 wireless LANs (WLANs). The bandwidth used on a link affects significantly both the capacity experienced on this link and the interference produced on neighboring links. Therefore, when jointly assigning both center frequencies and channel widths, there is a trade-off between interference mitigation and the potential capacity offered on each link. We study this tradeoff and we present SAW (spectrum assignment for WLANs), a decentralized algorithm that finds efficient configurations. SAW is tailored for 802.11 home networks. It is distributed, online and transparent. It does not require a central coordinator and it constantly adapts the spectrum usage without disrupting network traffic. A key feature of SAW is that the access points (APs) need only a few out-of-band measurements in order to make spectrum allocation decisions. Despite being completely decentralized, the algorithm is self-organizing and provably converges towards efficient spectrum allocations. We evaluate SAW using both simulation and a deployment on an indoor testbed composed of off-the-shelf 802.11 hardware. We observe that it dramatically increases the overall network efficiency and fairness.
Year
DOI
Venue
2013
10.1109/INFCOM.2013.6566953
INFOCOM
Keywords
Field
DocType
home networks,radio links,radio spectrum management,radiofrequency interference,radiofrequency measurement,wireless LAN,wireless channels,AP,IEEE 802.11 home networks,IEEE 802.11 wireless LAN,SAW,access points,channel center frequencies allocation,channel widths,distributed spectrum assignment,home WLAN,indoor testbed,interference mitigation,network efficiency,network traffic,off-the-shelf 802.11 hardware,out-of-band measurements,spectrum allocation decisions
Radio resource management,Wireless intrusion prevention system,Computer science,Computer network,Testbed,Communication channel,Bandwidth (signal processing),Frequency allocation,Channel allocation schemes,Cognitive radio,Distributed computing
Conference
ISSN
ISBN
Citations 
0743-166X
978-1-4673-5944-3
15
PageRank 
References 
Authors
0.77
17
3
Name
Order
Citations
PageRank
Julien Herzen1726.44
Ruben Merz229523.65
Patrick Thiran32712217.24