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Analysis of Non-Coherent Detectors for Opportunistic Spectrum Access in Broadband Wireless Networks Open Access

Descriptions

Other title
Subject/Keyword
Cognitive Radio, Spectrum Sensing, Energy Detector, p-norm Detector
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Sharma Banjade, Vesh Raj
Supervisor and department
Jiang, Hai (Electrical and Computer Engineering)
Tellambura, Chintha (Electrical and Computer Engineering)
Examining committee member and department
Khajehoddin, S. Ali (Examination Chair, Electrical and Computer Engineering)
Elmallah, Ehab S. (Computing Science)
Dong, Xiaodai (External Examiner, University of Victoria)
Jing, Yindi (Electrical and Computer Engineering)
Department
Department of Electrical and Computer Engineering
Specialization
Communications
Date accepted
2016-01-26T08:50:54Z
Graduation date
2016-06
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
The exponential growth in the number of wireless broadband service users demands an enormous increase in the available communication bandwidth, which inherently translates into an increased demand for the radio frequency spectrum. Opportunistically accessing the unused portions of the spectrum requires sensing the availability of unused bands. In this thesis, non-coherent detectors such as the energy detector and its more generalized version, the p-norm detector, which offer low-cost low-complexity spectrum sensing are considered and comprehensive techniques for performance analyses are developed. To this end, a new approximate representation for the wireless fading channels is proposed and applied to facilitate accurate, asymptotic performance analysis for the energy detector across a variety of operating conditions including fading, antenna/cooperative diversity and interference. To address the analytical difficulty involved in spectrum sensing using the p-norm detector, several accurate analytical expressions are developed and utilized to comprehensively characterize the spectrum sensing performance in generalized fading channels and in fading channels with antenna diversity. To promote tractable spectrum sensing performance analysis for arbitrary sample sizes, five accurate approximations are introduced and investigated. In another comprehensive system setup, spectrum sensing performance of the p-norm detector under the cumulative effects of path-loss, fading, and a large number of randomly deployed interfering nodes is characterized by developing a comprehensive semi-analytical technique and extended to cooperative spectrum sensing.
Language
English
DOI
doi:10.7939/R3VX06800
Rights
This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for the purpose of private, scholarly or scientific research. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
Citation for previous publication
V.R. Sharma Banjade, C. Tellambura, and H. Jiang, “Asymptotic Performance of Energy Detector in Fading and Diversity Reception,” IEEE Transactions on Communications, vol. 63, no. 6, pp. 2031–2043, June 2015.  http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7104109&newsearch=true&queryText=banjadeV.R
. Sharma Banjade, C. Tellambura, and H. Jiang, “New Asymptotics for Performance of Energy Detector,” Proceedings of the IEEE Global Communications Conference (GLOBECOM), pp. 4020–4024, December 2014.  http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7037436&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel7%2F7008954%2F7036769%2F07037436.pdf%3Farnumber%3D7037436V.R
. Sharma Banjade, C. Tellambura, and H. Jiang, “Performance of p-Norm Detector in AWGN, Fading, and Diversity Reception,” IEEE Transactions on Vehicular Technology, vol. 63, no. 7, pp. 3209–3222, September 2014.  http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6704836&newsearch=true&queryText=Performance%20of%20p-Norm%20Detector%20in%20AWGN,%20Fading,%20and%20Diversity%20ReceptionV.R
. Sharma Banjade, C. Tellambura, and H. Jiang, “Approximations for Performance of Energy Detector and p-norm Detector,” IEEE Communications Letters, vol. 19, no. 10, pp. 1678–1681, October 2015.  http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7182280&newsearch=true&queryText=Approximations%20for%20Performance%20of%20Energy%20Detector%20and%20p-norm%20DetectorV.R
. Sharma Banjade, C. Tellambura, and H. Jiang, “Spectrum Sensing Performance of p-norm Detector in Random Network Interference,” Proceedings of the IEEE International Conference on Communications (ICC), pp. 7474–7479, June 2015.  http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7249521&newsearch=true&queryText=Spectrum%20Sensing%20Performance%20of%20p-norm%20Detector%20in%20Random%20Network%20Interference

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