Mobility

Performance Analysis of OSTBC in Gamma-Gamma Fading Channels

Date Added: Mar 2012
Format: PDF

The Multi-Input Multi-Output (MIMO) system with a Subcarrier Intensity Modulation (SIM) scheme in Free-Space Optics (FSO) has a huge merit for ultra wide band communications mainly due to its diversity gain to be able to mitigate the signal scintillation caused by the atmospheric turbulence. In this paper, the authors have analyzed the performance of the Orthogonal Space-Time Block Codes (OSTBCs) in FSO links. In particular, the power series expressions of the outage probability and average Bit Error Rate (BER) of the OSTBC for any number of antennas are derived in gamma-gamma fading channels using the SIM scheme.