Open AccessDesign and Implementation of Sequency-Ordered Fast Walsh-Hadamard Transform (FWHT) in WCDMA
Author(s) -
Safaa M. Z. Al-Ubaidi
Publication year - 2013
Publication title -
mağallaẗ tikrīt li-l-ʻulūm al-handasiyyaẗ/tikrit journal of engineering sciences
Language(s) - English
Resource type - Journals
eISSN - 2312-7589
pISSN - 1813-162X
DOI - 10.25130/tjes.21.3.03
Subject(s) - hadamard transform , computation , matlab , walsh function , computer science , interference (communication) , fast fourier transform , algorithm , electronic engineering , construct (python library) , computer engineering , engineering , mathematics , telecommunications , mathematical analysis , channel (broadcasting) , programming language , operating system
This paper presents the implementation of the Fast Walsh Hadamard Transform (FWHT) in sequenceordered method, in order to minimize the interference due to two users trying to transmit at the same time,and an attempt has made to simulate them. The simulations designed satisfy most of the requirements ofthe parameters mentioned in the 3GPP specifications. The main objectives of this paper are to construct amodel using MATLAB 7.4.0(R2007a) to illustrate the simulation.In image processing and pattern recognition the motivation for using transforms other than Fourier iseither to reduce computation time for a given resolution, or to increase resolution without increasing thelength of the computation time and to minimize the hardware resources. Fast Walsh-Hadamard Transformhas been used effectively to satisfy these requirements.