FSO Cooperative System Analysis for DF based Relay
Sanya Anees
Sanya Anees, Department of Electronics and Communication , Indian Institute of Information Technology Guwahati, Guwahati, Assam, India.
Manuscript received on 02 July 2019 | Revised Manuscript received on 09 July 2019 | Manuscript published on 30 August 2019 | PP: 1433-1436 | Volume-8 Issue-10, August 2019 | Retrieval Number: J90740881019/2019©BEIESP | DOI: 10.35940/ijitee.J9351.0881019
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: This paper presents performance and information theoretic analysis for cascaded free space optical (FSO) communication system using decode-and-forward relaying protocol. Optical links experience Gamma-Gamma distributed atmospheric turbulence, path loss, and misalignment losses. Derived closed-form statistical characteristics of the end-to-end SNR of the system are used for outage analysis, bit-error-rate analysis, and information theoretic analysis of the proposed system, for various modulation schemes and adaptive transmission protocols, respectively. In the performance analysis, impact of misalignment losses and scintillations is seen on various performance parameters and the adaptive modulation schemes using capacity of proposed systems.
Keywords: Bit error rate, decode-and-forward relaying, Gamma-Gamma turbulence, free space optical (FSO) communication, path loss, pointing error.
Scope of the Article: communication