Performance Analysis of Subcarrier Index Modulation OFDM in a DWDM-FSO link

Max Fréjus Owolabi SANYA, Fifamè Merci-Ange MAGNIDET, Sabi Yari Moïse BANDIRI, Tahirou DJARA

Abstract


Free Space Optics (FSO) is a wireless optical communication system using light to establish high-capacity links between points without the need for physical cables. However, its susceptibility to atmospheric conditions such as fog, rain, and turbulence presents challenges to signal quality maintenance. To address this, Dense Wavelength Division Multiplexing (DWDM), traditionally employed in fiber optics, is leveraged to optimize bandwidth utilization and scalability in high-capacity communications. The integration of DWDM into FSO systems offers redundancy and resilience against signal degradation induced by atmospheric conditions. To the best of our knowledge, this is the first time a paper explores the performance of the Subcarrier Index Modulation Orthogonal Frequency Division Multiplexing (SIM-OFDM) technique within a DWDM-FSO system.  The objective is to reinforce FSO link robustness and improve transmission rates. Through a comparative analysis with conventional OFDM in an Additive White Gaussian Noise (AWGN) channel, the study reveals a notable Signal-to-Noise Ratio (SNR) gain of at least 3dB with enhanced SIM-OFDM (ESIM-OFDM). Simulations, conducted with realistic parameters within the DWDM-FSO architecture, demonstrate that ESIM-OFDM modulation enables a transmission range of 2 km with an aggregated rate of 10.1 Gb/s. These results underscore the potential of SIM-OFDM in enhancing FSO system performance through the integration of DWDM technology. The proposed ESIM-OFDM DWDM-FSO scenario could represent a highly interesting solution for establishing 5G Backhaul links.

Keywords


SIM-OFDM; FSO, DWDM; AWGN; BER

Full Text:

PDF

References


S.A.A. El-Mottaleb, A.G. Mohamed, H.Y. Ahmed and M. Zeghid, "Performance Enhancement of FSO Communication System Under Rainy Weather Environment Using a Novel Encryption Technique," IEEE Access, Vol. 12, pp. 13729-13746, January 2024.

Z. Xu, G. Xu and Z. Zheng, "BER and Channel Capacity Performance of an FSO Communication System over Atmospheric Turbulence with Different Types of Noise," Sensors, Vol. 21, no. 10: 3454, April 2021.

D. Srivastava, G. Kaur, G. Singh and P. Singh, "Evaluation of Atmospheric Detrimental Effects on Free Space Optical Communication System for Delhi Weather," Journal of Optical Communications, Vol. 45, no. 1, pp. 95-103, 2024.

S. Kaur, A. Sharma, "Performance estimation of SISO and MIMO Ro-FSO link under atmospheric turbulence," Opt Quant Electron, Vol. 56, no. 48, 2024.

M. Garlinska, A. Pregowska, K. Masztalerz and M. Osial, "From Mirrors to Free-Space Optical Communication—Historical Aspects in Data Transmission," Future Internet, Vol. 12, no. 11: 179, October 2020.

H. Singh and D.P. Chechi, "Performance Evaluation of Free Space Optical (FSO) Communication Link: Effects of Rain, Snow and Fog," 6th International Conference on Signal Processing and Integrated Networks (SPIN), Noida, India, pp. 387-390, May 2019.

S.A. Al-Gailani et al., "A Survey of Free Space Optics (FSO) Communication Systems, Links, and Networks," IEEE Access, vol. 9, pp. 7353-7373, 2021.

Y. Shao et al., "Research on full duplex FSO access system with hybrid 16PSK/256QAM-OFDM downlink and duobinary uplink signals,", Optics Communications, Vol. 550, 129956, 2024.

M. Kumari and V. Arya, "Wheel-based 5G fronthaul/backhaul hybrid MDM-NGPON/FSO system under Gamma-Gamma turbulence and weather effects," Int J Commun Syst., Vol. 37, no. 2:5647, 2024.

H. Arora and V. Sharma, "Performance comparison of code division multiple access and orthogonal frequency division multiplexing over turbulent effected free space optics link under the impact of advance coding formats," Journal of Optical Communications, Vol. 45, no. 1, pp. 119-123, 2024.

M.R. Hayal, B.B. Yousif, M.A. Azim, "Performance Enhancement of DWDM-FSO Optical Fiber Communication Systems Based on Hybrid Modulation Techniques under Atmospheric Turbulence Channel," Photonics, Vol. 8, no. 11:464, October 2021.

M. Grover, P. Singh, P. Kaur, and C. Madhu, “Multibeam WDM-FSO system: an optimum solution for clear and hazy weather conditions,” Wireless Personal Communications, vol. 97, no. 4, pp. 5783–5795, 2017.

E.E. Elsayed, B.B. Yousif and M.M. Alzalabani, et al., "Performance Enhancement of the Power Penalty in DWDM FSO Communication Using DPPM and OOK Modulation," Cham, Switzerland:Springer, Vol. 50, no. 7, 2018.

R. Gupta, T.S. Kamal, P. Singh, "Performance of OFDM: FSO Communication System with Hybrid Channel Codes during Weak Turbulence", Journal of Computer Networks and Communications, Vol. 2019, Article ID 1306491, pp. 6, 2019.

M. Singh, S. Chebaane, S.B. Khalifa, A. Grover, S. Dewra and M. Angurala, "Performance Evaluation of a 4 × 20-Gbps OFDM-Based FSO Link Incorporating Hybrid W-MDM Techniques," Frontiers in Physics, Vol. 9, 2021.

R. Abu-alhiga and H. Haas, "Subcarrier-index modulation OFDM," IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, Tokyo, Japan, 2009, pp. 177-181, April 2010.

D. Tsonev, S. Sinanovic and H. Haas, "Enhanced subcarrier index modulation (SIM) OFDM," IEEE GLOBECOM Workshops (GC Wkshps), Houston, TX, USA, 2011, pp. 728-732.

T. Mao, Q. Wang, Z. Wang and S. Chen, "Novel Index Modulation Techniques: A Survey," IEEE Communications Surveys & Tutorials, vol. 21, no. 1, pp. 315-348, Firstquarter 2019.

Q. He and A. Schmeink, "A Better Decision Rule for OFDM with Subcarrier Index Modulation," WSA 2017; 21th International ITG Workshop on Smart Antennas, Berlin, Germany, pp. 1-4, June 2017.

J.R. Hasan and N.A. Hikmat, “Comparative study of selected subcarrier index modulation OFDM schemes.” TELKOMNIKA, Yogyakarta Vol. 17, Iss. 1, pp. 15-22, February 2019.

R. Guan, W. Xu, Z. Yang, N. Huang, J.-Y. Wang and M. Chen, "Enhanced subcarrier-index modulation-based asymmetrically clipped optical OFDM using even subcarriers," Optics Communications, Vol. 402, pp. 600-605, July 2017.

T. Tang, X. Zou, P. Li, W. Pan, B. Luo and L. Yan, "Proposal and Demonstration of Subcarrier Index Modulation OFDM for RoF System With Enhanced Spectral Efficiency," Journal of Lightwave Technology, Vol. 36, no. 19, pp. 4501-4506, October 2018.

C. Chen, X. Deng, Y. Yang, P. Du, H. Yang and W. -D. Zhong, "Experimental Demonstration of Optical OFDM with Subcarrier Index Modulation for IM/DD VLC," Asia Communications and Photonics Conference (ACP), Chengdu, China, pp. 1-3, February 2020.

Q. Tang, J. He and Z. Zhou, "Experimental Research on subcarrier index power modulation OFDM for visible light communication system," Association for Computing Machinery, New York, NY, USA, pp. 323–328, June 2021.

H. Zhang, L.-L. Yang and L. Hanzo, "Compressed Sensing Improves the Performance of Subcarrier Index-Modulation-Assisted OFDM," IEEE Access, vol. 4, pp. 7859-7873, October 2016.

F. Khan, F. Umrani, A. Baqai and M. Ijaz, “A Novel Double-Sided Pulse Interval Modulation (DS-PIM) Aided SIM-OFDM for 6G Light Fidelity (LiFi) Networks," Electronics, Vol.11, no. 21, 3579, November 2022.

I. Sengupta and S. Dasgupta, “Reduced Subcarrier Index Modulation Scheme in OFDM System for Next-Gen Wireless Networks," Das, N.R., Sarkar, S. (eds) Computers and Devices for Communication. CODEC 2019. Lecture Notes in Networks and Systems, Vol. 147. Springer, Singapore, February 2021.

M.S. Sarwar, M. Ahmad and S.Y. Shin, "Subcarrier Index Modulation for Spectral Efficient Frequency Division Multiplexing in Multi-Input Multi-Output Channels," IEEE Transactions on Vehicular Technology, Vol. 72, no. 2, pp. 2678-2683, February 2023.

S.S. Mi, A. Siriwanitpong, P. Boonsrimuang and P. Boonsrimuang, "Channel Estimation for Enhanced Subcarrier Index Modulation OFDM Using Zadoff-Chu Sequence Pilot in Nonlinear Channel," 19th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), Prachuap Khiri Khan, Thailand, pp. 1-4, June 2022.

E. Başar, Ü. Aygölü, E. Panayırcı and H.V. Poor, "Orthogonal Frequency Division Multiplexing With Index Modulation," IEEE Transactions on Signal Processing, Vol. 61, no. 22, pp. 5536-5549, November 2013.

M. F. Sanya, L. Djogbe, A. Vianou and C. Aupetit-Berthelemot, "DC-biased optical OFDM for IM/DD passive optical network systems," in Journal of Optical Communications and Networking, Vol. 7, no. 4, pp. 205-214, April 2015.




DOI: http://dx.doi.org/10.52155/ijpsat.v42.2.6016

Refbacks

  • There are currently no refbacks.


Copyright (c) 2024 Max Fréjus Owolabi SANYA, Fifamè Merci-Ange MAGNIDET, Sabi Yari Moïse BANDIRI, Tahirou DJARA

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.