Distance-1 constrained channel assignment in single radio wireless mesh networks

Simple item page
dc.contributor.advisorKnightly, Edward W.
dc.creatorAryafar, Ehsan
dc.date.accessioned2018-12-03T18:31:53Z
dc.date.available2018-12-03T18:31:53Z
dc.date.issued2008
dc.description.abstractThis thesis addresses channel assignment and random medium access design for single-radio multi-channel mesh networks. Two prior approaches include: (i) designing MAC protocols that dynamically select channels based on local information and (ii) partitioning the mesh into subnetworks with different channels and using IEEE 802.11 as the medium access protocol. Both of these approaches suffer from limited throughput improvement: the first approach due to wrong or incomplete channel state information that inherently arises in a multi-hop wireless environment, while the second approach due to high interference within each subnetwork. In this thesis. I first introduce. D1C-CA, Distance-1 Constrained Channel Assignment. D1C-CA statically assigns channels to a set of links as a function of physical connectivity, contention, and the unique gateway functionality of mesh networks. i.e. all internet (non-local) traffic has a gateway node as its source or destination. To design D1C-CA, I model the channel assignment problem as a new form of graph edge coloring in which edges at distance one are constrained. I prove that the problem is NP-complete and design an efficient heuristic solution for mesh networks. Second, I design an asynchronous control-channel-based MAC protocol that solves multi-channel coordination problems and employs the proposed channel assignment algorithm. Finally, I investigate the performance of my approach through extensive simulations and show considerable performance improvements compared to alternate schemes.
dc.format.extent87 pp
dc.identifier.callnoTHESIS E.E. 2008 ARYAFAR
dc.identifier.citationAryafar, Ehsan. "Distance-1 constrained channel assignment in single radio wireless mesh networks." (2008) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/103617">https://hdl.handle.net/1911/103617</a>.
dc.identifier.digital304510978
dc.identifier.urihttps://hdl.handle.net/1911/103617
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectElectrical engineering
dc.subjectComputer science
dc.subjectApplied sciences
dc.titleDistance-1 constrained channel assignment in single radio wireless mesh networks
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
304510978.pdf
Size:
1.29 MB
Format:
Adobe Portable Document Format
Download
Collections
Rice University Electronic Theses and Dissertations