التفاصيل البيبلوغرافية
| العنوان: |
BER ANALYSIS OF MULTIPATH PPM AND MSK CARRIER INTENSITY MODULATION |
| المؤلفون: |
Sanjeev Kumar, Mr.M., Vijaya, Mrs.V. |
| المصدر: |
International Journal of Innovative Technology and Research; Vol 4, No 5 (2016): August - September 2016; 4229-4232 |
| بيانات النشر: |
International Journal of Innovative Technology and Research |
| سنة النشر: |
2016 |
| المجموعة: |
International Journal of Innovative Technology and Research (IJITR) |
| مصطلحات موضوعية: |
ECE, Free-Space Optical Communication, Subcarrier Intensity Modulation, Atmospheric Turbulence, Atmospheric Attenuation, Bit-Error Rate (BER) |
| الوصف: |
In order to improve the bit-error-rate (BER) performance of free-space optical (FSO) communication systems employing binary phase-shift keying subcarrier intensity modulation (BPSK-SIM), an innovative hybrid modulation scheme called PPM-MSK-SIM is proposed, which is based on pulse position modulation (PPM) and minimum shift keying (MSK) subcarrier intensity modulation. Subsequently, the BER performance of PPM-MSK-SIM is studied in detail for an FSO system over log-normal turbulence channels with avalanche photodiode detection. The results of the numerical simulation show that PPM-MSK-SIM has the advantages of improving the BER performance compared with BPSK-SIM and PPM. This makes PPM-MSK-SIM a favorable candidate for the modulation technique in FSO communication systems. In this paper, we investigate the bit error rate (BER) performance of FSO links with spatial diversity over lognormal atmospheric turbulence fading channels, assuming both independent and correlated channels among transmitter/receiver apertures. Our analytical derivations build upon an approximation to the sum of correlated log-normal random variables. The derived BER expressions quantify the effect of spatial diversity and possible spatial correlations in a log-normal channel. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| العلاقة: |
http://www.ijitr.com/index.php/ojs/article/view/1194/pdfTest; http://www.ijitr.com/index.php/ojs/article/view/1194Test |
| الإتاحة: |
http://www.ijitr.com/index.php/ojs/article/view/1194Test |
| حقوق: |
To The Editor-in-Chief, IJITR 1. I understand that the Editor-in-Chief may transfer the Copyright to a publisher at his discretion. 2. The author(s) reserve(s) all proprietary rights such as patent rights and the right to use all or part of the article in future works of their own such as lectures, press releases, and reviews of textbooks. In the case of republication of the whole, part, or parts thereof, in periodicals or reprint publications by a third party, written permission must be obtained from the The Editor-in-Chief IJITR, or his designated publisher. 3. I am authorized to execute this transfer of copyright on behalf of all the authors of the article named above. 4. I hereby declare that the material being presented by me in this paper is our original work, and does not contain or include material taken from other copyrighted sources. Wherever such material has been included, it has been clearly indented or/and identified by quotation marks and due and proper acknowledgements given by citing the source at appropriate places. |
| رقم الانضمام: |
edsbas.C9025D9F |
| قاعدة البيانات: |
BASE |
