NDLI: A Cognitive Spectrum Assignment Protocol using Distributed Conflict Graph Construction

Content Provider	IEEE Xplore Digital Library
Author	Plummer, Anthony Wu, Tao Biswas, Subir
Copyright Year	2007
Description	Author affiliation: Electrical and Computer Engineering Department, Michigan State University (Plummer, Anthony; Wu, Tao; Biswas, Subir)
Abstract	The availability of multiple interfaces and channels in wireless devices is expected to alleviate the capacity limitations that exist in traditional single channel wireless mesh networks. Although having multiple radio interfaces and available channels can generally increase the effective throughput, a problem arises as to what is the best strategy to dynamically assign available channels to multiple radio interfaces for maximizing effective network throughput by minimizing the interference. This paper presents a distributed and localized interference-aware channel assignment framework for multi-radio wireless mesh networks in a cognitive network environment. The proposed framework uses a novel interference estimation method by utilizing distributed conflict graphs at each network interface to model the interference. Extensive simulation studies in 802.11 based multi-radio mesh networks have been performed. The results indicate that for both local and multi-hop traffic, the proposed protocol can facilitate a large increase in network throughput in comparison with a Common Channel Assignment mechanism that is used as a benchmark in the literature.
Starting Page	1
Ending Page	7
File Size	372722
Page Count	7
File Format	PDF
ISBN	9781424415120
DOI	10.1109/MILCOM.2007.4455299
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Throughput Wireless mesh networks Cognitive radio Wireless application protocol Telecommunication traffic FCC Chromium Computer interfaces Computer networks Distributed Channel Assignment Cognitive Network Conflict Graphs
Content Type	Text
Resource Type	Article

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