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Permanent link (DOI): https://doi.org/10.7939/R3QD0H

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Theses and Dissertations

A MAC Protocol for Multihop RP-CDMA Ad Hoc Wireless Networks Open Access

Descriptions

Other title
Subject/Keyword
RP-CDMA
Ad Hoc
Wireless
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Mortimer, Richard T
Supervisor and department
Harms, Janelle (Computing Science)
Examining committee member and department
Nikolaidis, Ioanis (Computing Science)
Harms, Janelle (Computing Science)
Fair, Ivan (Electrical and Computer Engineering)
Department
Department of Computing Science
Specialization

Date accepted
2012-04-30T09:53:31Z
Graduation date
2012-11
Degree
Master of Science
Degree level
Master's
Abstract
RP-CDMA is a wireless multiple access technique that utilizes multiple spreading codes and a multiuser detector to enhance link reliability and performance. We propose a simple MAC protocol on top of the RP-CDMA Phy and apply it to the multihop ad hoc network model. In addition to a MAC, we propose two significant extensions to RP-CDMA aimed at improving throughput and reliability. We test our network device using the ns-3 network simulator and compare its performance to that of the well known 802.11 CSMA model. Our simulations confirm that RP-CDMA can substantially improve link reliability and network performance, but that a link level acknowledgement mechanism is required to ensure packet delivery across the network. We investigate a simple acknowledgement policy and conclude that it enables simultaneous high throughput and packet delivery while maintaining low latency.
Language
English
DOI
doi:10.7939/R3QD0H
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
T. Mortimer and J. Harms, “A MAC Protocol for Multihop RP-CDMA Ad Hoc Wireless Networks,” in IEEE ICC 2012 - Ad-hoc and Sensor Networking Symposium (ICC'12 AHSN), Ottawa, Canada, 2012.

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