MC-DS-CDMA system based on DWT and STBC in ITU multipath fading channels model
Joint Authors
Ahmadi, Arash
Khaddam, Nadir Abd Allah
Makki, Sayyid Wahhab
Karimimi, Ghulam Rida
Abd al-Rahim, Layth Ali
Source
Journal of University of Babylon for Engineering Sciences
Issue
Vol. 26, Issue 5 (31 May. 2018), pp.279-298, 20 p.
Publisher
Publication Date
2018-05-31
Country of Publication
Iraq
No. of Pages
20
Main Subjects
Abstract EN
In this paper, the performance of multicarrier direct sequence code division multiple access (MC-DS-CDMA) in fixed MC-DS-CDMA and Mobile MC-DS-CDMA applications have been improved by using the compensations of space time block coding and Discrete Fast Fourier transforms (FFT) or Discrete Wavelets transform DWT.
These MC-DS-CDMA systems had been simulated using MATLAB 2015a.
Through simulation of the proposed system, various parameters can be changed and tested.
The Bit Error Rate (BERs) of these systems are obtained over wide range of signal to noise ratio.
All simulation results had been compared with each other using different subcarrier size of FFT or DWT with STBC for 1,2,3 and 4 antennas in transmitter and under different ITU multipath fading channels and different Doppler frequencies (fd).
The proposed structures of STBC-MC-DS-CDMA system based on (DWT) batter than based on (FFT) in varies Doppler frequencies and subcarrier size.
Also, proposed system with STBC based on 4 transmitters better than other systems based on 1 or 2 or 3 transmitters in all Doppler frequencies and subcarrier size in all simulation results.
American Psychological Association (APA)
Khaddam, Nadir Abd Allah& Abd al-Rahim, Layth Ali& Ahmadi, Arash& Makki, Sayyid Wahhab& Karimimi, Ghulam Rida. 2018. MC-DS-CDMA system based on DWT and STBC in ITU multipath fading channels model. Journal of University of Babylon for Engineering Sciences،Vol. 26, no. 5, pp.279-298.
https://search.emarefa.net/detail/BIM-923574
Modern Language Association (MLA)
Abd al-Rahim, Layth Ali…[et al.]. MC-DS-CDMA system based on DWT and STBC in ITU multipath fading channels model. Journal of University of Babylon for Engineering Sciences Vol. 26, no. 5 (2018), pp.279-298.
https://search.emarefa.net/detail/BIM-923574
American Medical Association (AMA)
Khaddam, Nadir Abd Allah& Abd al-Rahim, Layth Ali& Ahmadi, Arash& Makki, Sayyid Wahhab& Karimimi, Ghulam Rida. MC-DS-CDMA system based on DWT and STBC in ITU multipath fading channels model. Journal of University of Babylon for Engineering Sciences. 2018. Vol. 26, no. 5, pp.279-298.
https://search.emarefa.net/detail/BIM-923574
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 296-298
Record ID
BIM-923574