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Simulation of GDFT for CDMA

Published on May 2012 by Vaishali Patil, Jaikaran Singh, Mukeshtiwari
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National Conference on Advancement in Electronics & Telecommunication Engineering
Foundation of Computer Science USA
NCAETE - Number 4
May 2012
Authors: Vaishali Patil, Jaikaran Singh, Mukeshtiwari
ce5a5fb0-b525-4c8f-ac51-599d1f385f46

Vaishali Patil, Jaikaran Singh, Mukeshtiwari . Simulation of GDFT for CDMA. National Conference on Advancement in Electronics & Telecommunication Engineering. NCAETE, 4 (May 2012), 15-19.

@article{
author = { Vaishali Patil, Jaikaran Singh, Mukeshtiwari },
title = { Simulation of GDFT for CDMA },
journal = { National Conference on Advancement in Electronics & Telecommunication Engineering },
issue_date = { May 2012 },
volume = { NCAETE },
number = { 4 },
month = { May },
year = { 2012 },
issn = 0975-8887,
pages = { 15-19 },
numpages = 5,
url = { /proceedings/ncaete/number4/6614-1104/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 National Conference on Advancement in Electronics & Telecommunication Engineering
%A Vaishali Patil
%A Jaikaran Singh
%A Mukeshtiwari
%T Simulation of GDFT for CDMA
%J National Conference on Advancement in Electronics & Telecommunication Engineering
%@ 0975-8887
%V NCAETE
%N 4
%P 15-19
%D 2012
%I International Journal of Computer Applications
Abstract

Generalized Discrete Fourier Transform (GDFT) with non-linear phase is a complex valued, constant modulus orthogonal function set. GDFT can be effectively used discrete multi-tone (DMT), orthogonal frequency division multiplexing (OFDM) and code division multiple access (CDMA) communication systems. The constant modulus transforms like discrete Fourier transform (DFT), Walsh transform, and Gold codes have been successfully used in above mentioned applications over several decades. However, these transforms are suffering from low cross-correlation features. This problem can be addressed by using GDFT transform. This paper describes the MATLAB simulation of GDFT for code division multiple access (CDMA). We have also implemented Gold, Walsh and DFT codes. Their performance is analyzed and compared on the basis of various parameters such as Maximum Value of Out-of-Phase Auto-Correlation, Maximum Value of Out-of-Phase Cross-Correlation, Mean-Square Value of Auto-Correlation, Mean-Square Value of Cross-Correlation and merit factor.

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Index Terms

Computer Science
Information Sciences

Keywords

Cdma Simulation Orthogonal Ber Snr Correlation