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Implementation of Pulse Shaping Techniques in OFDM System

by Divyangana Gandhi, Shilpi Gupta, U. D. Dalal
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 68 - Number 10
Year of Publication: 2013
Authors: Divyangana Gandhi, Shilpi Gupta, U. D. Dalal
10.5120/11615-7012

Divyangana Gandhi, Shilpi Gupta, U. D. Dalal . Implementation of Pulse Shaping Techniques in OFDM System. International Journal of Computer Applications. 68, 10 ( April 2013), 19-23. DOI=10.5120/11615-7012

@article{ 10.5120/11615-7012,
author = { Divyangana Gandhi, Shilpi Gupta, U. D. Dalal },
title = { Implementation of Pulse Shaping Techniques in OFDM System },
journal = { International Journal of Computer Applications },
issue_date = { April 2013 },
volume = { 68 },
number = { 10 },
month = { April },
year = { 2013 },
issn = { 0975-8887 },
pages = { 19-23 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume68/number10/11615-7012/ },
doi = { 10.5120/11615-7012 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:27:27.929269+05:30
%A Divyangana Gandhi
%A Shilpi Gupta
%A U. D. Dalal
%T Implementation of Pulse Shaping Techniques in OFDM System
%J International Journal of Computer Applications
%@ 0975-8887
%V 68
%N 10
%P 19-23
%D 2013
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Tremendous improvement has been made possible in wireless technology due to success of OFDM system which is a multi carrier modulation technique with capability to support high data rates. Despite its many advantages OFDM has failed against inter symbol interference (ISI), high sensitivity to Inter carrier interference (ICI), high peak to average power ratio (PAPR), phase noise and band limited channel. Hence the performance of an OFDM system is highly affected by the aforementioned undesired phenomenon. For this reason bandlimited system often employs pulse shaping techniques. In this paper pulse shaping of multi carrier signal is introduced by using various pulse shapes like Rectangular pulse (REC), Raised cosine pulse (RC), Better than raised cosine pulse (BTRC), Sinc power pulse (SP) and Improved sinc power pulse (ISP). The impulse responses and frequency spectrums have been evaluated and compared with system without using pulse shaping. Results obtained by simulation for OFDM system using pulse shaping and without using pulse shaping indicate that the performance of OFDM system with various pulse shapes is better than without using pulse shaping. Along with it can also be observed that among pulse shaping ISP exhibits better performance. Computer simulation has been done by using MATLAB 7. 0 software.

References
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Index Terms

Computer Science
Information Sciences

Keywords

OFDM ISI ICI Rectangular pulse (REC) Raised cosine pulse (RC) Better than raised cosine pulse (BTRC) Sinc power pulse (SP) and Improved sinc power pulse (ISP)

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