Advanced modulation coding schemes for an optical transceiver systems–based OWC communication channel model

Hazem M. El-Hageen (University of Tabuk)
Aadel M. Alatwi (Egyptian Nuclear & Radiological Regulatory Authority)
Ahmed Nabih Zaki Rashed (Menoufia University)

Bulletin of Electrical Engineering and Informatics
Vol 10, No 2: April 2021

This paper examines advanced modulation coding schemes for an optical transceiver systems–based optical wireless communication (OWC) channel model. These modulation techniquesinclude On-Off keying and return to zero (RZ)/non–return to zero (NRZ) coding. The signal power level against time and frequency spectral variations are measured. The max. Q factor and min. bit error rate (BER) are estimated and clarified for each modulation code scheme by using an optisystem simulation model. Transmission bit rates of up to 40 Gb/s can be achieved for possible distances up to 500 km with acceptable Q factor. The received power and max. Q factor are measured and clarified with OWC distance variations. The On-Off keying modulation code scheme resulted in better performance than the other modulation code schemes did.