Performance analysis of FSO links under strong atmospheric turbulence conditions using various modulation schemes

Prabu, K and Kumar, Sriram D and Srinivas, T (2014) Performance analysis of FSO links under strong atmospheric turbulence conditions using various modulation schemes. In: OPTIK, 125 (19). pp. 5573-5581.

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Abstract

Strong atmospheric turbulence is a major hindrance in wireless optical communication systems. In this paper, the performance of a wireless optical communication system is analyzed using different modulation formats such as, binary phase shift keying-subcarrier intensity modulation (BPSK-SIM), differential phase shift keying (DPSK), differential phase shift keying-subcarrier intensity modulation (DPSK-SIM), Mary pulse position modulation (M-PPM) and polarization shift keying (PoISK). The atmospheric channel is modeled for strong atmospheric turbulences with combined effect of turbulence and pointing errors. Novel closed-form analytical expressions for average bit error rate (BER), channel capacity and outage probability for the various modulation techniques, viz. BPSK-SIM, DPSK, DPSK-SIM, PoISK and M-PPM are derived. The simulated results for BER, channel capacity and outage probability of various modulation techniques are plotted and analyzed. (C) 2014 Elsevier GmbH. All rights reserved.

Item Type:	Journal Article
Publication:	OPTIK
Publisher:	ELSEVIER GMBH, URBAN & FISCHER VERLAG
Additional Information:	Copy right for this article belongs to the ELSEVIER GMBH, URBAN & FISCHER VERLAG, OFFICE JENA, P O BOX 100537, 07705 JENA, GERMANY
Keywords:	Free space optics; Binary phase shift keying-subcarrier; intensity modulation; Differential phase shift keying; Differential phase shift keying subcarrier; intensity modulation; Polarization shift keying
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	14 Nov 2014 07:29
Last Modified:	14 Nov 2014 07:29
URI:	http://eprints.iisc.ac.in/id/eprint/50285

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