Performance analysis of a MIMO Optical wireless link with space time block code (STBC)

Abstract

Performance analysis will be carried out for a space time block coded multiple input multiple output (MIMO) optical wireless link considering Nakagami-m fading model. The diversity reception in the receiving will be carried out by multiple receiving antenna with maximal ratio combining (MRC) technique. The expression of the receiver output will be derived for several sets of space time block codes considering the above fading model. The Probability density function (PDF) of the output of the MRC combiner will be developed and will be used to find the unconditional average bit error rate (BER). The Performance results will be evaluated numerically in terms of BER for several code and system parameters. The optimum system design parameters will be determined at a given BER.