CONTENTS
CHAPTER CONTENTS
PAGE
Title of Project i
Status Report Form ii
Student Declaration iii
Supervisor Declaration iv
Acknowledge ment v
Abstract vi
Abstrak vii
Table of Content viii
List of Tables xii
List of Figures xiii
List of Abbreviations xv
List of Appendixes xvii
I Introduction
1
1.1 Introduction to Adaptive Orthogonal Frequency Division Multiplexing
1
1.2 Proble m State ment 8
1.3 Project Objectives 9
1.4 Scope of Project 9
1.5 Project Outline 10
1.6 Report Organization 10
II Lite rature Review
11
2.1 Simulation of WiMax System Based on OFDM Model with Difference Adaptive Modulation
Techniques 12
2.2 Effect of Modulation Sche mes on Performance of OFDM based Wireless Network using Smart
Antenna 14
2.3 Adaptive OFDM for Wireless Interconnect in Confined Enclosures Computer Chassis
17
2.4 Adaptive OFDM for Underwater Acoustic Channels with Limited Feedback
20
2.5 Wireless Image Transmission based on Adaptive OFDM System
22
2.6 Summary of Lite rature Review 28
III Project Methodology
32
3.1 Project Overvie w 32
3.2 Software Development 33
3.3 Flow Chart of the Project 34
3.4 Program Planning 35
IV Results and Discussion
37
4.1 Introduction 37
4.2 Final Results and Analysis 38
4.2.1 Input and Output Image 38
4.2.2 BER Comparison for Different IFFT Size 45
4.2.3 Transmitte r Plots 47
4.2.4 Receiver Plots 48
V Conclusion and Suggestions
50
5.1 Conclusion 50
5.2 Suggestions 51
References 52
LIST OF TABLES
TABLE NO TITLE
PAGE
2.3 SNR decision level
18 2.5.1
Simulation parameters 26
2.5.2 Threshold SNR dB
26 2.6.1
Comparison between literature review 31
4.2.1 Parameters of simulation
38 4.2.2.1
BER values for IFFT = 128 45
4.2.2.2 BER values for IFFT = 256
45 4.2.2.3
BER values for IFFT = 512 46
4.2.2.4 BER values for IFFT = 1024
46 4.2.2.5
BER values for IFFT = 2048 47
LIST OF FIGURES
FIGURE NO TITLE
PAGE
1.1.1 OFDM model
4 1.1.2
Time representation of OFDM 5
1.1.3 Frequency representation of OFDM
5 1.1.4
Signalling scenarios in adaptive modems 8
2.1.1 WiMax physical and MAC layer architecture
12 2.1.2
Specification of WiMax system 13
2.1.3 BER vs SNR for basic OFDM model
14 2.1.4
Probability of error 14
2.2.1 Transmitte r module
16 2.3.1
Measure ment setup 17
2.3.2 Spectral efficiency of an adaptive OFDM system
with bandwidth 528 MHz as a function of center frequency
19
2.3.3 Spectral efficiency of adaptive OFDM for various
total OFDM symbol bandwidths 19
2.5.1 The proposed image trans mission system
24 2.5.2
Partitioned image and quad-tree representation 24
2.5.3 Block diagram for multipath fading channel
25 2.5.4
BER of adaptive modulation and fixed modulation according to SNR
27
2.5.5 The comparison of PSNR performance between
adaptive modulation and fixed modulation 27
3.3 Flowchart of the project
