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Permanent link (DOI): https://doi.org/10.7939/R39Q31

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Aggregate Interference Analysis for Cognitive Radio Networks Open Access

Descriptions

Other title
Subject/Keyword
Cognitive radio
Interference analysis
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Kusaladharma, Sachitha P.
Supervisor and department
Tellambura, Chintha (Electrical and Computer Engineering)
Examining committee member and department
Krzymien, Witold (Electrical and Computer Engineering)
Khabbazian, Majid (Electrical and Computer Engineering)
Tellambura, Chintha (Electrical and Computer Engineering)
Department
Department of Electrical and Computer Engineering
Specialization
Communications
Date accepted
2013-08-26T07:14:01Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
In underlay Cognitive Radio (CR) systems, secondary users may transmit while primary transmissions take place. However, the interference aggregates on the primary system, and performance degradation will occur. Thus, quantifying and modeling of the aggregate interference is important in characterizing the network’s performance. An interference analysis for a Poisson process of CR nodes in a finite area is undertaken while incorporating channel parameters, and a simple Gamma model for the aggregate interference is proposed. Furthermore, a multiple-ring model to replace the annular underlay model will be developed. This model is versatile and mathematically tractable, while being highly accurate. Moreover, the interference from the nearest interferer node is analyzed, and situations where the nearest interferer’s interference can approximate the aggregate interference are identified. An outage and asymptotic analysis is carried out for the models. The effect of different system and channel parameters are shown within the numerical results.
Language
English
DOI
doi:10.7939/R39Q31
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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