UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Opportunistic Spectrum Sharing System: Regulatory, Technical and Stakeholder Perspectives

Kawade, SS; (2014) Opportunistic Spectrum Sharing System: Regulatory, Technical and Stakeholder Perspectives. Doctoral thesis , UCL (University College London).

Full text not available from this repository.

Abstract

An overview of current spectrum management methods was carried out and it was decided that to be able to accommodate the predicted explosive growth in wireless data services changes would have to be made to avoid spectrum depletion becoming a very serious future problem. In addition, a review of numerous spectrum exploitation studies and measurement campaigns showed that nationally spectrum was being significantly underexploited. To address this apparent anomaly, it was decided that finding a means for improving spectrum exploitation nationally may provide a potential solution for the spectrum depletion problem. This is referred to as spectrum sharing, the focus for the DEng research. A new spectrum management model named Opportunistic Spectrum Management (OSM) is proposed on the basis that all spectrum licenses are awarded on a non-exclusive usage basis and spectrum use is based on a multi-level priority structure, because certain types of services require performance and spectrum availability guarantees. The proposed model retains backward compatibility with the traditional spectrum management model and its recent enhancements. To fully exploit the OSM model, the thesis proposes an automated spectrum management system name Opportunistic Spectrum Sharing System (OSSS) capable of dynamically allocating spectrum and enforcing spectrum usage priority rules both nationally and in real-time. OSSS overcomes limitations of traditional sensing based cognitive radio technology primarily its inability to distinguish between different spectrum usage classes and the hidden node problem. A key issue associated with computing acceptable power levels in an automated spectrum sharing system produced over-optimistic results. The thesis shows how this can be extended to improve its accuracy without compromising its closed form nature. Finally, the thesis concludes with a discussion of the implications and commercial benefits of opportunistic spectrum sharing from the perspectives of various wireless stakeholders, which is supported by extracts from the author’s various publications.

Type: Thesis (Doctoral)
Title: Opportunistic Spectrum Sharing System: Regulatory, Technical and Stakeholder Perspectives
Language: English
Keywords: Spectrum, Wireless, Regulator, Sharing, Opportunistic, Regulation, Whitespace, Cognitive, Radio, License, License-exempt, Trading
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1418207
Downloads since deposit
2Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item