BER performance of OFDM based wireless services over radio on FSO links in the presence of turbulence and pointing errors
Recently the transmission of multiple radio frequency (RF) signals over fiber link, referred to as radio over fiber (RoF) has achieved a great deal of research interest. In case where deployment of optical fiber is not feasible, the new generation of free space optical (FSO) systems can be used to transmit RF signals, that is referred to as radio over FSO (RoFSO) In this paper, we study the BER performance of a RoFSO system based on orthogonal frequency division multiplexing (OFDM) scheme with quadrature amplitude modulation (QAM) when the optical beam is experiences the FSO link is affected by gamma gamma atmospheric turbulence and misalignment errors (pointing errors) We derive a novel closed form BER of the RoFSO M QAM OFDM system, when both atmospheric turbulence and pointing errors.
2016 8th International Symposium on Telecommunications (IST)