Masters Theses

Gaurav Sharma

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 processingModulation (Electronics)Software radio

Thesis Number

T 9363

Print OCLC #

260356740

Electronic OCLC #

225864117

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