NDLI: A Distributed Multi-channel Cognitive MAC Protocol for IEEE 802.11s Wireless Mesh Networks

Content Provider	IEEE Xplore Digital Library
Author	Ghaboosi, K. Latva-aho, M. Yang Xiao
Copyright Year	2008
Description	Author affiliation: Centre for Wireless Commun., Univ. of Oulu, Oulu (Ghaboosi, K.)
Abstract	In this paper, we propose a novel distributed frequency agile medium access control (MAC) extension to the IEEE 802.11s amendment for the next generation wireless mesh networks (WMNs). The proposed scheme has complete backward compatibility with the legacy IEEE 802.11 and the emerging 802.11s while, it is perfectly capable of multi-channel deployment of available frequency opportunities in order to coordinate concurrent multiple data transmissions. The root concept of the proposed enhancement is mainly based on the deployment of well-known ISM frequency bands, where the existing 802.11-based wireless equipments nowadays operate, as the common control channel in order to establish concurrent data transmissions. Here, we apply the aforementioned key concept to the IEEE 802.11s common channel framework (CCF) to attain two important goals: on one hand, the proposed scheme improves the channel utilization and capacity using the concept of cognitive radio and on the other hand, using the same concept it leads to lower access delay due to smarter decision making procedures exploited for link layer connection establishment. Through extensive simulations, which also take into account primary user (PU) appearance in non-ISM frequency opportunities, performance of the proposed medium access control (MAC) enhancement is evaluated showing its remarkable efficiency and better wireless medium access management.
Starting Page	1
Ending Page	8
File Size	795169
Page Count	8
File Format	PDF
ISBN	9781424423019
DOI	10.1109/CROWNCOM.2008.4562477
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-15
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel capacity Wireless application protocol Wireless mesh networks Access protocols Media Access Protocol Frequency Data communication Cognitive radio Next generation networking Delay
Content Type	Text
Resource Type	Article

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