Free space optics (FSO) technology provides a promising solution for future broadband networks, offering high data transmission compared to RF technology. This work is focused on investigating the performance of an FSO system with OFDM... more
Free space optics (FSO) technology provides a promising solution for future broadband networks, offering high data transmission compared to RF technology. This work is focused on investigating the performance of an FSO system with OFDM and QAM. A 10 Gbps data stream is transmitted using a 4-level QAM sequence through the FSO system under different atmospheric conditions. Results indicate that the integration of SOA prolongs the maximum achievable distance with acceptable SNR to 185 km under clear weather conditions whereas under atmospheric fog, the maximum distance is extended to 2.5 km
Radio over free space optics (Ro-FSO) technology provides a promising solution for future wireless network, offering high data transmission compared to RF technology. In this paper, performance of double sideband–suppressed carrier based... more
Radio over free space optics (Ro-FSO) technology provides a promising solution for future wireless network, offering high data transmission compared to RF technology. In this paper, performance of double sideband–suppressed carrier based RoFSO system under various weather conditions is investigated. It transmits two RF signals at 10 and 15 GHz over an optical wireless channel of 1 km. At transmitter Mach Zehnder modulator is used for both carrier suppression and signal modulation. At the receiver, delay interferometer is used for separation of RF signal having delay of 0.1ns.
