Hybrid PPM-BPSK subcarrier intensity modulation for free space optical communications

Faridzadeh, Monire, Gholami, Asghar, Ghassemlooy, Zabih and Rajbhandari, Sujan (2011) Hybrid PPM-BPSK subcarrier intensity modulation for free space optical communications. In: 16th European Conference on Networks and Optical Communications : NOC 2011, 20th -22nd July 2011, Newcastle-upon-Tyne, UK. IEEE, Piscataway, NJ, pp. 36-39. ISBN 978-1612847535

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Abstract

In this paper, a new hybrid pulse position modulation - binary phase shift keying subcarrier intensity modulation (PPM-BPSK-SIM) modulation scheme for free space optical (FSO) communications is presented. The theoretical analysis error probability of the PPM-BPSK-SIM in turbulence atmospheric channel is carried out and verified using computer simulation. The performance of PPM-BPSK-SIM is compared with PPM and BPSK-SIM in a lognormal atmospheric channel for a range of turbulence variance σ2l = {0, 0.1, 0.3, 0.5 and 1.2}. The results show that the performance of PPM-BPSK-SIM is superior to BPSK-SIM for all turbulence levels, while its performance becomes better than 2-PPM for σ2l >; 0.3.

Item Type: Book Section
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics and Information Sciences
Depositing User: Ay Okpokam
Date Deposited: 30 May 2012 10:47
Last Modified: 10 Nov 2016 12:38
URI: http://nrl.northumbria.ac.uk/id/eprint/7479

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