2026-09-20T04:24:23Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/338942022-01-13T07:55:02Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Andrew B. Lippman.
Cooley, James E. (James Edward)
Massachusetts Institute of Technology. Dept. of Architecture. Program In Media Arts and Sciences
Program in Media Arts and Sciences (Massachusetts Institute of Technology)
2006-08-25T18:54:38Z
2006-08-25T18:54:38Z
2005
2005
http://hdl.handle.net/1721.1/33894
66528236
Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2005.
Includes bibliographical references (leaves 80-81).
There is a misguided perception that RF spectrum space is fully allocated and fully used though even a superficial study of actual spectrum usage by measuring local RF energy shows it largely empty of radiation. Traditional regulation uses a fence-off policy, in which competing uses are isolated by frequency and/or geography. We seek to modernize this strategy. Given advances in radio technology that can lead to fully cooperative broadcast, relay, and reception designs, we begin by studying the existing radio environment in a qualitative manner. We wish to objectively understand the purpose of a particular transmission, its threshold of allowable interference, and whether anyone is attempting to receive it. We wish to propose ways in which cognitive radio systems might coexist with legacy radio systems. In Chapter 1, we review the conditions that led to the current regulatory climate. Chapter 2 discusses the purpose of this thesis and how the work done relates to cognitive radio technologies. Chapter 3 discuses the design of data capture and analysis modules used to better understand RF spectrum space usage. Chapter 4 applies the software modules to a range of spectrum space and evaluates the results.
by James E. Cooley.
S.M.
81, [1] leaves
3842392 bytes
3845761 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Architecture. Program In Media Arts and Sciences
A day in the life of the RF spectrum
Thesis
application/pdf
false
Publication
unknown
unknown
<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="72965efa-511b-4f8e-918d-3a681941bfd5">
<Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type>
<Language>eng</Language>
<Title>A day in the life of the RF spectrum</Title>
<PublishedIn>
<Publication>
</Publication>
</PublishedIn>
<PublicationDate>2005</PublicationDate>
<Authors>
<Author>
<DisplayName>Cooley, James E. (James Edward)</DisplayName>
<Affiliation>
<OrgUnit>
</OrgUnit>
</Affiliation>
</Author>
</Authors>
<Editors>
</Editors>
<Publishers>
<Publisher>
<DisplayName>Massachusetts Institute of Technology</DisplayName>
<OrgUnit />
</Publisher>
</Publishers>
<License>http://dspace.mit.edu/handle/1721.1/7582</License>
<Keyword>Architecture. Program In Media Arts and Sciences</Keyword>
<Abstract>There is a misguided perception that RF spectrum space is fully allocated and fully used though even a superficial study of actual spectrum usage by measuring local RF energy shows it largely empty of radiation. Traditional regulation uses a fence-off policy, in which competing uses are isolated by frequency and/or geography. We seek to modernize this strategy. Given advances in radio technology that can lead to fully cooperative broadcast, relay, and reception designs, we begin by studying the existing radio environment in a qualitative manner. We wish to objectively understand the purpose of a particular transmission, its threshold of allowable interference, and whether anyone is attempting to receive it. We wish to propose ways in which cognitive radio systems might coexist with legacy radio systems. In Chapter 1, we review the conditions that led to the current regulatory climate. Chapter 2 discusses the purpose of this thesis and how the work done relates to cognitive radio technologies. Chapter 3 discuses the design of data capture and analysis modules used to better understand RF spectrum space usage. Chapter 4 applies the software modules to a range of spectrum space and evaluates the results.</Abstract>
<Access xmlns="http://purl.org/coar/access_right"
>
</Access>
</Publication>