Hybrid 10 Gbps/20 GHz RF wireless and 10 Gbps FSO communication network employing POLMUX with OFDM modulation technique

10 Gbps/20 GHz Wireless transmission and 10 Gbps free space optical (FSO) communication using orthogonal frequency division multiplexed data with 16 quadrature amplitude modulation format and polarization multiplexing technique has been proposed and demonstrated in this present paper. The architecture has the ability to successfully minimize the dispersion and inter symbol interference effect as well as increase the spectral efficiency and transmission capacity of the FSO link. The achieved low power penalties (about 1.2 and 1.6 dB) and clear constellation diagrams suggest efficiency of the proposed system. Also, the error vector magnitude values achieved for the system are