Date of Award

1-1-2012

Document Type

Thesis

Degree Name

M.S.

Department

Electrical Engineering

First Advisor

Mohammad Matin, Ph.D.

Second Advisor

David Gao

Third Advisor

Ramakrishna Thurimella

Keywords

Orthogonal Frequency Division Multiplexing, Digital communication, Wireless communication

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is a very efficient multicarrier technique. OFDM is used more and more in recent wideband digital communications. It has numerous advantages such as the ability to handle severe channel conditions, efficient spectral usage, reduced inter symbol interference (ISI), and high data rate. Therefore, it has been utilized in many wired and wireless communication systems like DSL, wireless networks and 4G mobile communications.

Studying the performance of OFDM over different channels is the main focus of this research. Channels' environments simulated in Matlab are additive white Gaussian noise (AWGN) and fading channels. Each channel affects the process of transmission in a certain way. Simulation results will make us understand some of these effects.

Fading channels include two types of flat fading and two types of frequency selective fading. At certain signal-to-noise ratios (SNRs), channels are compared together in order to rank them according to the delivered signal. Quality of the signals, bit-error-rates (BERs), and peak signal-to-noise ratios (PSNRs) of the received signals are the aspects in which system performance is evaluated.

Publication Statement

Copyright is held by the author. User is responsible for all copyright compliance.

Provenance

Received from ProQuest

Rights holder

Ahmed Alshammari

File size

107 p.

File format

application/pdf

Language

en

Discipline

Engineering

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