2026-09-19T04:42:53Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/285442022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Moe Z. Win.
Tomezak, Gregory John, 1980-
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2005-09-27T16:55:10Z
2005-09-27T16:55:10Z
2004
2004
http://hdl.handle.net/1721.1/28544
57400736
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.
Includes bibliographical references (p. 57-59).
In this thesis, we provide a cross-layer analysis of the throughput of the dynamic collision reduction (DCR) protocol, a multiple access protocol that requires frame synchronization. At the physical-layer, we develop the optimal neighbor detector for ultra-wide bandwidth (UWB) signaling in a dense multipath environment with delay uncertainty. The detector takes advantage of the inherent multipath diversity associated with UWB signaling. We then develop an effective distributed control policy, derived from a dynamic programming formulation, to increase the throughput of UWB random-access networks in the DCR protocol. Finally, we construct a model for the distribution of nodes in the plane enabling closed-form analysis of two-hop signaling over wireless channels while capturing many of the transmission dependencies between randomly located relaying nodes. Our results demonstrate promising throughput.
by Gregory John Tomezak.
S.M.
59 p.
2261505 bytes
2266766 bytes
application/pdf
application/pdf
en_US
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
Electrical Engineering and Computer Science.
Dynamic collision reduction protocol for ultra-wide bandwidth multiple access networks
DCR protocol for UWB multiple access networks
Thesis
application/pdf
false
Publication
unknown
unknown
<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="cf7bf318-a16e-4ae6-98b3-564befe1f3c3">
<Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type>
<Language>en_US</Language>
<Title>Dynamic collision reduction protocol for ultra-wide bandwidth multiple access networks</Title>
<Subtitle>DCR protocol for UWB multiple access networks</Subtitle>
<PublishedIn>
<Publication>
</Publication>
</PublishedIn>
<PublicationDate>2004</PublicationDate>
<Authors>
<Author>
<DisplayName>Tomezak, Gregory John, 1980-</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>Electrical Engineering and Computer Science.</Keyword>
<Abstract>In this thesis, we provide a cross-layer analysis of the throughput of the dynamic collision reduction (DCR) protocol, a multiple access protocol that requires frame synchronization. At the physical-layer, we develop the optimal neighbor detector for ultra-wide bandwidth (UWB) signaling in a dense multipath environment with delay uncertainty. The detector takes advantage of the inherent multipath diversity associated with UWB signaling. We then develop an effective distributed control policy, derived from a dynamic programming formulation, to increase the throughput of UWB random-access networks in the DCR protocol. Finally, we construct a model for the distribution of nodes in the plane enabling closed-form analysis of two-hop signaling over wireless channels while capturing many of the transmission dependencies between randomly located relaying nodes. Our results demonstrate promising throughput.</Abstract>
<Access xmlns="http://purl.org/coar/access_right"
>
</Access>
</Publication>