Open Access Open Access  Restricted Access Subscription or Fee Access

Investigations on the impact of modulation formats and weather conditions in FSO link employing polarization division multiplexing and coherent detection-orthogonal frequency division multiplexing

Tanu Shri

Abstract


Free space optics (FSO) is a communication system where free space acts as medium between transceivers and they should be in line-of-sight for successful transmission of optical signal. Medium can be air, outer space, or vacuum. This system can be used for communication purpose in hours and in lesser economy. There are many advantages of FSO like high bandwidth and no spectrum license. The transmission in FSO is dependent on the medium because the presence of foreign elements like rain, fog, and haze, physical obstruction, scattering, and atmospheric turbulence are some of these factors. In this work, we demonstrate the development of a 100 Gbps FSO link which employing polarization division multiplexing technique. For improved receiver performance, we have used coherent detection. In order to transport large-speed data without inter-symbol interference, orthogonal frequency division multiplexing has been employed. We have investigated the system performance for different modulation formats and state of climate affairs. The proposed system has been modeled and analyzed over Optisystem test bed.  

 

Keywords- free space optics; polarization division multiplexing; coherent detection; orthogonal frequency division multiplexing; modulation formats; weather conditions


Full Text:

PDF

References


. S. Chaudhary, B. Lin, X. Tang, X Wei, Z. Zhou, C. Lin, M. Zhang, H. Zhang, 40Gbps-80GHz PSK-MDM based Ro-FSO transmission system, Optical and Quantum Electronics (2018) 50:321.

. M.A. Khalighi and M. Uysal, “Survey on Free Space Optical Communication: A Communication Theory Perspective”, IEEE Communications Surveys & Tutorials, Vol. 16, No. 4, pp. 2231-2258, 2014.

. A. Mahdy and J.S. Deogun, “Wireless Optical Communications: A Survey”, Proceedings of IEEE Wireless Communications and Networking Conference, Vol. 4, pp. 2399- 2404, 2004.

. Mehtab Singh (2017). Enhanced Performance Analysis of Inter-aircraft Optical Wireless Communication (IaOWC) Link using EDFA Pre-amplifier, Wireless Personal Communications, 97: 4199-4209

. Chaudhary, Sushank. (2017). Optimization of AMI-MDM-RoFSO Under Atmospheric Turbulence. The European Physical Journal Conferences.

. A. Kanno, et al., 40 Gb/s W-band (75–110 GHz) 16-QAM radio-over-fiber signal generation and its wireless transmission, Optics express, 19 (2011) B56-B63.

. Mehtab Singh (2018). Performance analysis of WDM-FSO system under adverse weather conditions, Photonic Network Communications, 36: 1-10.

. C.B. Naila, et al., Transmission analysis of M-ary phase shift keying multiple-subcarrier modulation signals over radio-onfree-space optical channel with aperture averaging, Optical Engineering, 50 (2011) 105006-105006-105009.

. Xuan Tang, Zabih Ghassemlooy, Sujan Rajbhandari, Wasiu O. Popoola, Chung Ghiu Lee, "Coherent Heterodyne Multilevel Polarization Shift Keying With Spatial Diversity in a Free-Space Optical Turbulence Channel", Lightwave Technology Journal of, vol. 30, no. 16, pp. 2689-2695, 2012.

. H. Zhou, et al., Optical power allocation for adaptive WDM transmissions in free space optical networks, Wireless Communications and Networking Conference (WCNC), 2014 IEEE, IEEE2014, pp. 2677-2682

. A.K. Majumdar, Free-space laser communication performance in the atmospheric channel. J. Opt. Fiber Commun. Rep. 2, 345–396 (2005)

. S. Arnon, J.R. Barry, G.K. Karagiannidis, R. Schober, M. Uysal (eds.), Advanced Optical Wireless Communication (Cambridge University Press, Cambridge, 2012)

. H. Kaushal, G. Kaddoum, Optical communication in space: challenges and mitigation techniques. IEEE Commun. Surv. Tutor. 19(1), 57–96 (2017)

. A. Amphawan, N. Benjaporn, and M. A. S. Nashwan, “Selective excitation of LP01 mode in multimode fiber using solid-core photonic crystal fiber,” J. Mod. Optic. ahead-of-print, 1–9 (2014).

. Mehtab Singh, Jyoteesh Malhotra (2019). Long-Reach High-Capacity Hybrid MDM-OFDM-FSO Transmission Link Under the Effect of Atmospheric Turbulence, Wireless Personal Communications, 107: 1549-1571.

. Mehtab Singh, Jyoteesh Malhotra (2019). Enhanced performance of 40 Gbit/s-80 GHz OFDM based radio over FSO transmission link incorporating mode division multiplexing under strong atmospheric turbulence, Optoelectronics and Advanced Materials-Rapid Communications, 13(7-8): 437-447.

. Mehtab Singh, Jyoteesh Malhotra (2019). Performance comparison of high-speed long-reach mode division multiplexing-based radio over free space optics transmission system using different modulation formats under the effect of atmospheric turbulence, Optical Engineering, 58(4): 046112-1-9.

. Mehtab Singh, Jyoteesh Malhotra (2019). Performance comparison of M-QAM and DQPSK modulation schemes in a 2×20 Gbit/s-40 GHz hybrid MDM-OFDM-based radio over FSO transmission system, Photonic Communication Networks, 38: 378-389.

. Mehtab Singh, Jyoteesh Malhotra (2020). Performance Comparison of 2×20 Gbps-40 GHz OFDM based RoFSO Transmission Link Incorporating MDM of Hermite Gaussian modes Using Different Modulation Schemes, Wireless Personal Communications, 110: 699-711.

. Mehtab Singh, Jyoteesh Malhotra (2020). Modeling and Performance Analysis of 400 Gbps CO-OFDM Based Inter-satellite Optical Wireless Communication (IsOWC) System Incorporating Polarization Division Multiplexing with Enhanced Detection, Wireless Personal Communications, 111: 495-511.

. V. Sharma and N. Kumar (2013). Modeling of 2.5Gbps-intersatellite link (ISL) in inter-satellite optical wireless communication (IsOWC) system. Optik. 124(23): 6182-6185.

. Mehtab Singh, Jyoteesh Malhotra (2019). Performance investigation of high-speed FSO transmission system under the influence of different atmospheric conditions incorporating 3-D orthogonal modulation scheme, Optical and Quantum Electronics, 51, Article No: 285.

. C. Detweiller, I. Vasilescu and D. Rus (2007). AquaNodes: an underwater sensor network. Proc. of IEEE Second International Workshop on Underwater Networks, Montreal, Canada, pp. 85–88.




DOI: https://doi.org/10.37591/jovdtt.v10i2.4241

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 Journal of VLSI Design Tools & Technology



eISSN: 2249–474X