Performance investigation and development of 112 gbit/s dual polarization 16 QAM transmission system using differential encoding

Abstract

This article reports the free space optics (FSO) with generation of a high bit rate transmission link with 16 QAM phase shift keyed signals. Optical receiver is proposed to mitigate the performance of demodulator under environmental conditions. Also, to resolve the adverse channel effects on the information signal digital signal processing (DSP) techniques at the receiver end are used. The bit error rate (BER) analysis using numerical simulations for divergent weather conditions is bring out and the results illustrate 112 Gbps transmission link. Further, the comparison is conducted with previous techniques which shows that the system provides better data rate performance and achievable range. The reported work provides a suitable reference towards optical communication under different environmental conditions.