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ID 56155
FullText URL
Author
Md. Selim Al Mamun Okayama University
Funabiki, Nobuo Okayama University
Kyaw Soe Lwin Okayama University
Md. Ezharul Islam Okayama University
Kao, Wen-Chung National Taiwan Normal University
Abstract
Recently, Wireless Local-Area Network (WLAN) has become prevailing as it provides flexible Internet access to users with low cost through installation of several types of access points (APs) in the network. Previously, we proposed the active AP configuration algorithm for the elastic WLAN system using heterogeneous APs, which dynamically optimizes the configuration by activating or deactivating APs based on traffic demands. However, this algorithm assumes that any active AP may use a different channel from the other ones to avoid interferences, although the number of non-interfered channels in IEEE 802.11 protocols is limited. In this paper, we propose the extension of the AP configuration algorithm to consider the channel assignment to the active APs under this limitation. Besides, AP associations of the hosts are modified to improve the network performance by averaging loads among channels. The effectiveness of our proposal is evaluated using the WIMNET simulator in two topologies. Finally, the elastic WLAN system including this proposal is implemented using Raspberry Pi for the AP. The feasibility and performance of the implementation are verified through experiments using the testbed.
Keywords
Elastic WLAN system
interference minimization
channel assignment
active access-point configuration algorithm
testbed
Raspberry Pi
Published Date
2017-10-04
Publication Title
International Journal of Networking and Computing
Volume
volume7
Issue
issue2
Publisher
IJNC Editorial Committee
Start Page
248
End Page
270
ISSN
2185-2839
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
File Version
publisher
DOI
Related Url
isVersionOf https://doi.org/10.15803/ijnc.7.2_248