Investigations on Orthogonal-Frequency Division Multiplexed-Mode-Division Multiplexed MM Wave-on-Free Space Optics Transmission using Laguerre-Gaussian Modal Beams

AbstractThis paper focuses on designing of a 10 Gbit/s-10GHz hybrid Orthogonal frequency division multiplexing (FDM) based Radio over Free Space Optics (Ro-FSO) transmission link using optical single sideband modulation format and its performance has been compared using a different number of transmission beams. The proposed link has been simulated and compared using 1-beam, 2-beam, and 4-beam in the system. We show that by using the 4-beam system in the OFDM-Ro-FSO link, a 3000 m range has been achieved reliably, which a notable improvement when compared to previous work is. Also, we show an improved performance of the system by using an enhanced detection mechanism using a Square root module (SRm) at the receiver side.

Download Full-text

Enhanced performance analysis of a hybrid spectrum sliced‐wavelength division multiplexing‐mode division multiplexing‐orthogonal frequency division multiplexing based radio‐over‐free space optics

Transactions on Emerging Telecommunications Technologies ◽

10.1002/ett.3897 ◽

2020 ◽

Vol 31 (6) ◽

Cited By ~ 1

Author(s):

Amit Grover ◽

Anu Sheetal ◽

Vigneswaran Dhasarathan

Keyword(s):

Performance Analysis ◽

Wavelength Division Multiplexing ◽

Free Space ◽

Orthogonal Frequency Division Multiplexing ◽

Free Space Optics ◽

Frequency Division Multiplexing ◽

Frequency Division ◽

Wavelength Division ◽

Space Optics ◽

Mode Division Multiplexing

Download Full-text

Performance investigation of free space optics link employing polarization division multiplexing and coherent detection-orthogonal frequency division multiplexing under different link parameters

Journal of Optical Communications ◽

10.1515/joc-2020-0148 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Tanu Shri ◽

Anita Suman ◽

Parveen Kumar

Keyword(s):

Free Space ◽

Orthogonal Frequency Division Multiplexing ◽

High Capacity ◽

Coherent Detection ◽

Free Space Optics ◽

Frequency Division Multiplexing ◽

Frequency Division ◽

Test Bed ◽

Space Optics ◽

Polarization Division Multiplexing

AbstractFree space optics (FSO) is a novel transmission technique capable of providing high-capacity links with large bandwidth and robustness against electromagnetic waves interference. In this work, we demonstrate the development of a 100 Gbps FSO link which employs the hybridization of polarization division multiplexing technique and coherent detection-orthogonal frequency division multiplexing technique. Further, we have investigated the system performance by varying different parameters like the input power, the size of the receiver antenna, wavelength of laser beam, the angle of beam divergence, and the additional losses. The proposed system has been modeled and analyzed over Optisystem test bed.

Download Full-text

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 ◽

10.1515/joc-2019-0169 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Heena Arora ◽

Vishal Sharma

Keyword(s):

Free Space ◽

Code Division Multiple Access ◽

Orthogonal Frequency Division Multiplexing ◽

Multiple Access ◽

Data Rate ◽

Free Space Optics ◽

Frequency Division Multiplexing ◽

Frequency Division ◽

Space Optics ◽

Code Division Multiple

Abstract Free space optics (FSO) systems have gained considerable attention because of their numerous features and services. It has evolved into a promising technology for high data rate transmission in wireless communication systems. However, there are some atmospheric effects which inhibit its performance. In this paper, performance of code division multiple access–free space optics (CDMA–FSO) by combining multidiagonal (MD) codes and orthogonal frequency division multiplexing–free space optics (OFDM-FSO) systems over using advance line coding formats under the sway of turbulence conditions are investigated and compared. A comparative study has shown that CDMA–FSO offers better SNR with both CSRZ and AMI coding format under diverse conditions at data rate 15 and 20 Gbps.

Download Full-text