Performance analysis of direct sequence -code division multiple access in satellite channel by Ahmed Ali Ebraheem Hego ; supervised by Khalid Hamid Bilal.
Dissertant
Thesis advisor
University
Omdurman Islamic University
Faculty
Faculty of Engineering
Department
Department of Electrical and Electronics Engineering
University Country
Sudan
Degree
Master
Degree Date
2010
English Abstract
The main objective of this research work is to study the performance analysis for one user of the direct sequence spread spectrum (DS-SS) signal and multi–user of the direct sequence code division multiple access (DS-CDMA) signal transmission through nonlinear satellite channel.
We achieve our objectives by developing analytical model to calculate the bit error rate for one and multiple user, the impairments taken into consideration in the system are: nonlinear effect of traveling wave tube (TWTA) on board satellite (AM-to AM and AM-to PM conversion), additive white Guassian noise (AWGN), multiple access interference, the performance analysis were obtained in terms of bit error rate(BER).
The program was implemented using Delphi software program and the results were obtained in graphical form.
The results obtained from analytical model show that increasing the input back-off reduces the value of bit error rate up to a certain limit.
Any further increase in back -off results in a fixed value of bit error rate if the linear region of the characteristic of TWTA is reached.
Increasing the code length reduces the value of bit error up to a certain limit.
And increasing the number of users increases the value of bit error to a certain limit depending on the SNR.
Main Subjects
Telecommunications Engineering
Topics
No. of Pages
68
Table of Contents
Table of contents.
Abstract.
Chapter One : General review.
Chapter Two : Land mobile satellite.
Chapter Three : Code division multiple access.
Chapter Four : Performance analysis of ds-ss for one user in mobile nonlinear satellite channel.
Chapter Five : Conclusions & recommendations.
References.
American Psychological Association (APA)
Hajju, Ahmad Ali Ibrahim. (2010). Performance analysis of direct sequence -code division multiple access in satellite channel by Ahmed Ali Ebraheem Hego ; supervised by Khalid Hamid Bilal.. (Master's theses Theses and Dissertations Master). Omdurman Islamic University, Sudan
https://search.emarefa.net/detail/BIM-367407
Modern Language Association (MLA)
Hajju, Ahmad Ali Ibrahim. Performance analysis of direct sequence -code division multiple access in satellite channel by Ahmed Ali Ebraheem Hego ; supervised by Khalid Hamid Bilal.. (Master's theses Theses and Dissertations Master). Omdurman Islamic University. (2010).
https://search.emarefa.net/detail/BIM-367407
American Medical Association (AMA)
Hajju, Ahmad Ali Ibrahim. (2010). Performance analysis of direct sequence -code division multiple access in satellite channel by Ahmed Ali Ebraheem Hego ; supervised by Khalid Hamid Bilal.. (Master's theses Theses and Dissertations Master). Omdurman Islamic University, Sudan
https://search.emarefa.net/detail/BIM-367407
Language
English
Data Type
Arab Theses
Record ID
BIM-367407