The University of Dublin | Trinity College -- Ollscoil Átha Cliath | Coláiste na Tríonóide
Trinity's Access to Research Archive
Home :: Log In :: Submit :: Alerts ::

School of Engineering >
Electronic & Electrical Eng >
Electronic & Electrical Eng (Scholarly Publications) >

Please use this identifier to cite or link to this item:

Title: Bandwidth-adaptive waveforms for dynamic spectrum access networks
Sponsor: Science Foundation Ireland
Author's Homepage:
Keywords: DySPAN systems bandwidth-adaptive waveforms dynamic spectrum access networks embedded cyclostationary signatures multi-carrier transmission schemes waveform bandwidth estimation
Issue Date: 2008
Publisher: IEEE
Citation: Sutton, P.D., Ozgul, B., Nolan, K.E., Doyle, L.E. ‘Bandwidth-adaptive waveforms for dynamic spectrum access networks’ in Proceedings of IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySPAN, Chicago, IL, 14-17 Oct. 2008, 4658228, IEEE, pp 82-88
Series/Report no.: 4658228
Abstract: This paper presents a novel solution to the challenge of waveform bandwidth estimation in DySPAN systems using intentionally embedded cyclostationary signatures. Dynamic spectrum access networks (DySPANs) achieve high levels of spectrum use efficiency by exploiting spectrum white spaces, radio frequencies which are unused at given times and places. These white spaces have bandwidths which may not be known in advance and so, in order to fully exploit them, a DySPAN system must employ bandwidth-adaptive waveforms. It has been shown that multi-carrier transmission schemes can be leveraged to generate waveforms of flexible bandwidth. However, robust bandwidth estimation techniques are required for receiving nodes to successfully detect these signals and establish communication links. This paper makes three key contributions. Firstly, a novel technique for the generation of bandwidth-adaptive multi- carrier waveforms is proposed. Secondly, two approaches for parametrization of these bandwidth-adaptive waveforms in receiving DySPAN nodes are presented. The advantages and disadvantages of both bandwidth estimation techniques are examined and comparisons are drawn with approaches adopted for the IEEE 802.16 and draft IEEE 802.22 standards. Finally, the performance of both techniques under multipath fading conditions are examined using simulation results.
Description: PUBLISHED
Appears in Collections:Electronic & Electrical Eng (Scholarly Publications)

Files in This Item:

File Description SizeFormat
Bandwidth-Adaptive Waveforms for Dynamic.pdfpublished (publisher copy) peer-reviewed290.72 kBAdobe PDFView/Open

This item is protected by original copyright

Please note: There is a known bug in some browsers that causes an error when a user tries to view large pdf file within the browser window. If you receive the message "The file is damaged and could not be repaired", please try one of the solutions linked below based on the browser you are using.

Items in TARA are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback