Performance Analysis of WDM Based FSO Communication with Advance Modulation Formats

FSO (Free Space Optics) is a type of communication in which free space is used as a medium between transmitters and receivers. For this, transmitter and receiver dishes must be in line of sight for the proper transmission. In communication it has very affordable initial investment, and no license is required for this type of communication. This paper compares the advanced modulation formats i.e., AMI, Duobinary, Chirped NRZ and 33% RZ, which are the building blocks of next-generation software-defined optical networks for the 5G (fifth generation) network. Their performance is evaluated by considering different factors such as bit rates, FSO range and attenuation in different weather conditions. The signal quality of the received signal is analyzed by using Q-factor and the BER analyzer. The proposed scheme is implemented by designing different types of transmitters based on modulation formats. The work is carried out for the DWDM environment and performed in licensed version of Optisystem software v.14.