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114748

PROGRESSIVE IMAGE TRANSMISSION OVER OFDM SYSTEM

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Electrical Engineering, Computer Engineering and Electrical power and machines engineering.

Abstract

A modified Orthogonal Frequency Division Multiplexing (OFDM) system for robust progressive image transmission is proposed in this paper. A joint source-channel coder (JSCC) is employed in the modified OFDM system. The set partitioning hierarchical trees (SPIHT) used as source coder, and The Low-Density Parity-Check (LDPC) used as a channel coder. The SPIHT coder is modified to generate four different groups of bit stream relative to its significances. An unequal error protection (UEP) is suggested for data groups with the LDPC coder. Also, the modified OFDM system includes an adaptive clipping technique as a Peak to average power ratio (PAPR) reduction technique for OFDM signal. This proposed PAPR reduction technique is based on adaptive clipping for the amplitude of the input signal, where each of signals related to the different four groups of the modified SPIHT coder is clipped with a different clipping level according to the group sensitivity. To demonstrate the efficiency of the modified OFDM system with proposed PAPR reduction technique, the simulation results are presented based on bit error rate (BER), the Peak-signal-to-noise ratio (PSNR) and PAPR over AWGN channel. Based on the simulation results, the proposed structure provides a significant improvement in BER and PSNR performances and a reduction in PAPR is achieved.

DOI

10.21608/jesaun.2013.114748

Keywords

OFDM, PAPR, SPIHT, LDPC, UEP, AWGN channel

Authors

First Name

Usama

Last Name

Sayed Mohammed

MiddleName

-

Affiliation

Electrical Engineering Department,Faculty of Engineering,Assiut University, Assiut, Egypt

Email

usama@aun.edu.eg

City

-

Orcid

-

First Name

Osama A.

Last Name

Omer

MiddleName

-

Affiliation

Aswan Faculty of Engineering, South Valley University, Aswan, Egypt

Email

omer.osama@gmail.com

City

-

Orcid

-

First Name

Ahmed S. A.

Last Name

Mubarak

MiddleName

-

Affiliation

Egyptian Telecommunications

Email

a.mubark2010@gmail.com

City

-

Orcid

-

Volume

41

Article Issue

No 2

Related Issue

16841

Issue Date

2013-03-01

Receive Date

2012-10-04

Publish Date

2013-03-01

Page Start

543

Page End

557

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 41_Issue No 2_Pages 543-557.pdf

PDF . 427.7kB

Link

https://jesaun.journals.ekb.eg/article_114748.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114748

Order

12

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

PROGRESSIVE IMAGE TRANSMISSION OVER OFDM SYSTEM

Details

Type

Article

Created At

23 Jan 2023