Masters Theses
Abstract
"This thesis examines the benefits of using adaptive modulation in terms of spectral efficiency and probability of bit error for cognitive radio networks. In channels that fluctuate dynamically over time, systems that are based upon the conventional methods of fixed modulation formats do not perform well. Adaptive modulation provides many parameters that can be adjusted relative to the channel fading, including data rate, transmit power, instantaneous BER, symbol rate, and channel code rate or scheme. In this thesis, a systematic study on the increase in spectral efficiency obtained by optimally varying combinations of the modulation formats for a cognitive radio is provided...Simulations show how adaptively changing the modulation schemes improves the performance of the system by meeting a BER constraint over a range of SNR"--Abstract, page iii.
Advisor(s)
Kosbar, Kurt Louis
Committee Member(s)
Grant, Steven L.
Moss, Randy Hays, 1953-
Department(s)
Electrical and Computer Engineering
Degree Name
M.S. in Electrical Engineering
Publisher
Missouri University of Science and Technology
Publication Date
Spring 2008
Pagination
vii, 46 pages
Note about bibliography
Includes bibliographical references (pages 59-63).
Rights
© 2008 Gaurav Sharma, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Adaptive signal processing
Modulation (Electronics)
Software radio
Thesis Number
T 9363
Print OCLC #
260356740
Electronic OCLC #
225864117
Link to Catalog Record
Recommended Citation
Sharma, Gaurav, "Adaptive modulation for cognitive radios" (2008). Masters Theses. 6831.
https://scholarsmine.mst.edu/masters_theses/6831