Fog attenuation penalty analysis in terrestrial optical wireless communication-modified duo-binary return-to-zero system with various receiver pointing errors

In metropolitan communication infrastructures a revolutionary technique is emerge known as terrestrial optical wireless (OWC), which makes high-rise building connection possible. Even with this solution, there are many other problems like the influence of haze and fog in propagation channel obstruct scatter OWC light consequently led to big attenuation, due propagate temporal, angular spatial signal. Not mention minimum visibility that discourages implementation pointing errors (PE) tracking system. This present work aims analyze interrelation between multiple scattering (dense fog, heavy haze) receiver PE under modified duo-binary return-to-zero (MDRZ) We found caused by beam swag main controlling factor industriously minimize link margin, signal-to-noise ratio (SNR), raise bit error rate (BER) when an increasing turbulence strength track length. recommended guarantee transmitter– alignment installing variable field view (FOV) (a system) overcome impact make render urban laser effective presence PE.