Spectrum surveying for policy based cognitive radio

Rapid growth in wireless communication technologies and services creates high demands for radio spectrum. Current spectrum management and regulations are unable to cater these demands despite claims that radio spectrum is underutilised. Cognitive Radio (CR) aims to resolve these conflicts by enablin...

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Main Author:	Dzulkifli, Muhammad Rajaei
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/34681/5/MuhammadRajaeiDzulkifliMFKE2012.pdf
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id	my-utm-ep.34681
record_format	uketd_dc
spelling	my-utm-ep.346812018-04-12T05:36:29Z Spectrum surveying for policy based cognitive radio 2012-09 Dzulkifli, Muhammad Rajaei TK Electrical engineering. Electronics Nuclear engineering Rapid growth in wireless communication technologies and services creates high demands for radio spectrum. Current spectrum management and regulations are unable to cater these demands despite claims that radio spectrum is underutilised. Cognitive Radio (CR) aims to resolve these conflicts by enabling opportunistic spectrum access to licensed spectrum. Understanding the spectrum occupancy patterns of licensed spectrum users is important for large scale deployment of CR. This thesis aims to evaluate the 24-hour spectrum occupancy in the 30-3000 MHz frequency band of a suburban outdoor radio environment in Johor Bahru, Malaysia and its applications in the policy development for Policy Based Cognitive Radio (PBCR) concept. A spectrum survey was carried out whereby spectrum measurement was performed, and spectrum data was classified and analysed using energy detection and duty cycle based method. Findings revealed that the spectrum occupancy was 11.29% and several potential spectrum bands for future deployment of CR were identified. Distributions of the duty cycle variable were modelled using continuous probability distributions and their entropy was investigated for different occupancy levels. Results indicated that the beta and Kumaraswamy distributions were an accurate fit and investigations on the entropy distributions proposed characterisations for high, moderate and low spectrum occupancy level. The information gained was applied to demonstrate the development and testing of PBCR policies using Cognitive Radio Language. The demonstration proved the practicability of using the information from spectrum survey in the policy development of PBCR. 2012-09 Thesis http://eprints.utm.my/id/eprint/34681/ http://eprints.utm.my/id/eprint/34681/5/MuhammadRajaeiDzulkifliMFKE2012.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:69824?site_name=Restricted Repository masters Universiti Teknologi Malaysia, Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Dzulkifli, Muhammad Rajaei Spectrum surveying for policy based cognitive radio
description	Rapid growth in wireless communication technologies and services creates high demands for radio spectrum. Current spectrum management and regulations are unable to cater these demands despite claims that radio spectrum is underutilised. Cognitive Radio (CR) aims to resolve these conflicts by enabling opportunistic spectrum access to licensed spectrum. Understanding the spectrum occupancy patterns of licensed spectrum users is important for large scale deployment of CR. This thesis aims to evaluate the 24-hour spectrum occupancy in the 30-3000 MHz frequency band of a suburban outdoor radio environment in Johor Bahru, Malaysia and its applications in the policy development for Policy Based Cognitive Radio (PBCR) concept. A spectrum survey was carried out whereby spectrum measurement was performed, and spectrum data was classified and analysed using energy detection and duty cycle based method. Findings revealed that the spectrum occupancy was 11.29% and several potential spectrum bands for future deployment of CR were identified. Distributions of the duty cycle variable were modelled using continuous probability distributions and their entropy was investigated for different occupancy levels. Results indicated that the beta and Kumaraswamy distributions were an accurate fit and investigations on the entropy distributions proposed characterisations for high, moderate and low spectrum occupancy level. The information gained was applied to demonstrate the development and testing of PBCR policies using Cognitive Radio Language. The demonstration proved the practicability of using the information from spectrum survey in the policy development of PBCR.
format	Thesis
qualification_level	Master's degree
author	Dzulkifli, Muhammad Rajaei
author_facet	Dzulkifli, Muhammad Rajaei
author_sort	Dzulkifli, Muhammad Rajaei
title	Spectrum surveying for policy based cognitive radio
title_short	Spectrum surveying for policy based cognitive radio
title_full	Spectrum surveying for policy based cognitive radio
title_fullStr	Spectrum surveying for policy based cognitive radio
title_full_unstemmed	Spectrum surveying for policy based cognitive radio
title_sort	spectrum surveying for policy based cognitive radio
granting_institution	Universiti Teknologi Malaysia, Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2012
url	http://eprints.utm.my/id/eprint/34681/5/MuhammadRajaeiDzulkifliMFKE2012.pdf
_version_	1747816233482321920

Spectrum surveying for policy based cognitive radio

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