| Title: |
Simulation Model for a Frequency-Selective Land Mobile Satellite Communication Channel |
| Authors: |
Adeyemo, Zachaeus K.; Ajayi, Olumide O.; Ojo, Festus K. |
| Source: |
Innovative Systems Design and Engineering; Vol 3, No 11 (2012); 71-84 |
| Publisher Information: |
The International Institute for Science, Technology and Education (IISTE) |
| Publication Year: |
2012 |
| Collection: |
International Institute for Science, Technology and Education (IISTE): E-Journals |
| Description: |
This paper investigates a three-state simulation model for a frequency-selective land mobile satellite communication (LMSC) channel. Aside from ionospheric effects, the propagation channels for LMSC systems are also characterized by wideband effects due to multipath fading which makes the channels time-variant and exhibit frequency-selective distortion. Hence, an adequate knowledge and modelling of the propagation channel is necessary for the design and performance evaluation of the LMSC systems. A three-state simulation model for a frequency-selective LMSC channel, which is a combination of Rayleigh, Rician and Loo fading processes, is developed. The propagation characteristics of the proposed LMSC channel model are presented, and comparisons are made with the Rayleigh, Rician and Loo fading channels using bit error rate (BER) as the figure of merit. The simulation results show that the degree of fading experienced by the LMSC link depends on the length of time the mobile terminal is in a particular state or location, depending on the assumed probability of occurrence of each fading process; and it is observed from the BER results that the propagation impairment of the LMSC fading channel is relatively lower than that of Rayleigh and Loo fading channels but higher than the Rician fading channel. Keywords: mobile, multipath fading, propagation channel, satellite communication, wideband. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
https://www.iiste.org/Journals/index.php/ISDE/article/view/3268/3314; https://www.iiste.org/Journals/index.php/ISDE/article/view/3268 |
| Availability: |
https://www.iiste.org/Journals/index.php/ISDE/article/view/3268 |
| Rights: |
Submission of an article implies that the work described has not been published previously (except in the form of an abstract or as part of a published lecture or academic thesis), that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, will not be published elsewhere in the same form, in English or in any other language, without the written consent of the Publisher. The Editors reserve the right to edit or otherwise alter all contributions, but authors will receive proofs for approval before publication. Copyrights for articles published are retained by the authors, with first publication rights granted to the journal. The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author. |
| Accession Number: |
edsbas.685B7212 |
| Database: |
BASE |