NDLI: Centralized channel assignment for IEEE 802.11 WLANs: Utilization MinMax-Sum

Content Provider	IEEE Xplore Digital Library
Author	Drieberg, M. Fu-Chun Zheng
Copyright Year	2012
Description	Author affiliation: School of Systems Engineering, University of Reading, UK (Fu-Chun Zheng) \|\| Electrical and Electronics Engineering Department, Universiti Teknologi PETRONAS, Malaysia (Drieberg, M.)
Abstract	The ubiquitous wireless local area networks (WLANs) have been deployed almost everywhere imaginable including homes, offices, cafes, shopping malls, universities, airports and even cities. While this can potentially increase capacity and coverage, the problem of increased interference and contention can severely degrade its performance. With increased deployment density and the limited number of channels available, it is imperative that an effective channel assignment scheme is employed. In one of the earlier prominent work, the centralized channel assignment problem was formulated with the objective function of minimizing the effective channel utilization at the access point (AP) with the highest utilization or bottleneck AP. However, the scheme does not consider any channel changes that do not lower the utilization of the bottleneck AP, even if they can lower the utilization of other APs. Therefore, in this paper, a channel assignment scheme that considers the utilization of other APs without compromising the utilization at the bottleneck APs is proposed. Simulation results show that the proposed scheme not only can lower the sum utilization of all APs but also can minimize the utilization at the bottleneck APs.
Starting Page	633
Ending Page	637
File Size	329028
Page Count	5
File Format	PDF
ISBN	9781467345330
ISSN	18825621
e-ISBN	9789860334074
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-24
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	NiCT
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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