TY - JOUR
T1 - Performance evaluation of a 160-Gbit/s OCDMA-FSO system via Laguerre-Gaussian beams under weather conditions
AU - Abd El-Mottaleb, Somia A.
AU - Singh, Mehtab
AU - Yousif Ahmed, Hassan
AU - Zeghid, Medien
AU - Nisar, Kottakkaran Sooppy
AU - Alotaibi, Maged F.
AU - Mahmoud, Mona
AU - Weera, Wajaree
N1 - Publisher Copyright:
© 2022 THE AUTHORS
PY - 2023/1/15
Y1 - 2023/1/15
N2 - For capacity enhancement of free space optics (FSO) communication, a new model based on using four Laguerre-Gaussian (LG) beams, each carries four different users use optical code division multiplexing (OCDMA) techniques, is proposed. Additionally, the permutation vector (PV) codes that have zero cross correlation with direct detection (DD) technique are assigned to the OCDMA system. Each user carries 10 Gbps information data, so the overall capacity is 4 LG beams × 4 users (OCDMA) × 10 Gbps = 160 Gbps. Furthermore, the proposed model is simulated under the effects of different attenuations caused by different weather conditions and the performance is studied. The conducted results reveal successful transmission of 13 km under clear air (CA), 1.75 km under heavy haze (HH), 1.1 km under heavy rain (HR), and 0.9 km under heavy fog (HF) with an overall system capacity of 160 Gbps. These results were obtained with an acceptable log bit error rate (BER) less than −9 and quality (Q)-factor nearly 6.
AB - For capacity enhancement of free space optics (FSO) communication, a new model based on using four Laguerre-Gaussian (LG) beams, each carries four different users use optical code division multiplexing (OCDMA) techniques, is proposed. Additionally, the permutation vector (PV) codes that have zero cross correlation with direct detection (DD) technique are assigned to the OCDMA system. Each user carries 10 Gbps information data, so the overall capacity is 4 LG beams × 4 users (OCDMA) × 10 Gbps = 160 Gbps. Furthermore, the proposed model is simulated under the effects of different attenuations caused by different weather conditions and the performance is studied. The conducted results reveal successful transmission of 13 km under clear air (CA), 1.75 km under heavy haze (HH), 1.1 km under heavy rain (HR), and 0.9 km under heavy fog (HF) with an overall system capacity of 160 Gbps. These results were obtained with an acceptable log bit error rate (BER) less than −9 and quality (Q)-factor nearly 6.
KW - Free space optics, Bit error rate
KW - Optical code division multiple access
KW - Orbital angular momentum
KW - Propagation ranges
KW - Q-factor
UR - http://www.scopus.com/inward/record.url?scp=85145597087&partnerID=8YFLogxK
U2 - 10.1016/j.aej.2022.11.033
DO - 10.1016/j.aej.2022.11.033
M3 - Article
AN - SCOPUS:85145597087
SN - 1110-0168
VL - 63
SP - 661
EP - 674
JO - Alexandria Engineering Journal
JF - Alexandria Engineering Journal
ER -