Performance evaluation of SS-FSO communication system incorporating different line coding

Thakur, Anshul; Gupta, Amit; Singh, Harbinder; Bakshi, Surbhi; Goyal, Rakesh; Singh, Gurpreet; Mohan, Neeraj; Singhal, Ankur

doi:10.1007/s11082-021-02993-x

Cited by 14 publications

(14 citation statements)

References 16 publications

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“…SS-WDM with 10 Gbits/s Modi ed duo binary return to zero (MDRZ) for the downlink and OOK (On-Off keying) non-return to Zero (NRZ) for the uplink was proposed (Magidi et al 2019). In addition to spectral slicing, there are a number of factors that determine the overall performance of the SS-WDM-FSO system such as the distance of the FSO link (km), the beam divergence angle (mrad) and the antenna diameters of the transmitter as well as receiver (cm) (Thakur and Gupta 2021). A comparison of FSO with SS-WDM and without SS-WDM for various weather conditions using NRZ modulation format was reported (Vasani et al 2022).…”

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confidence: 99%

“…A transmission distance of 12 km is achieved without the use of optical ampli ers. Different intensity modulation formats such as RZ, NRZ, and CSRZ are simulated(Thakur et al 2021), and it is found that CSRZ has the best Q-factor considering all three intensity modulation formats. The differential phase modulation format DPSK has been reported(Ravesh et al 2022) and it was found that DPSK outperforms intensity modulation formats.…”

mentioning

confidence: 99%

“…comparison in terms of research work between the proposed work and existing works(Thakur et al 2021, Ravesh et al 2022 Gbps each is investigated. Nonlinearity, known as self-phase modulation in HNLF, is used to generate an extended carrier spectrum.…”

mentioning

confidence: 99%

“…The differential phase modulation format DPSK has been reported(Ravesh et al 2022) and it was found that DPSK outperforms intensity modulation formats. Therefore, in the proposed SS-WDM-FSO system, another differential phase modulation technique DQPSK, is investigated and a comparison is made with both the investigated DPSK format(Ravesh et al 2022) and the intensity modulation formats(Thakur et al 2021)…”

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confidence: 99%

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Spectrum-sliced wavelength division multiplexing based free space optical communication employing Differential quadrature phase-shift keying

Yarra¹,

A²

2022

Preprint

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With the motive to reduce the high cost incurred in Wavelength division multiplexing (WDM) based free-space optics (FSO) communication system, Spectrum-sliced (SS) WDM based FSO communication system at a data rate of 2.5 Gbps per channel is proposed in this research article. Utilizing the broadening of the spectrum by means of supercontinuum generation in a highly non linear Fiber (HNLF), an economical SS-WDM based FSO system is designed. The narrow spectrum of laser light source is broadened by means of self phase modulation (SPM). The proposed work confirms that the DQPSK based SS-WDM FSO system has higher performance in terms of Q-factor and BER compared to other intensity modulation formats as well as differential phase modulation formats. Considering various values of FSO link distances, antenna diameters of transmitter and receiver, beam divergence and thus, determining the values of Q-factor and BER, Differential quadrature phase shift keying (DQPSK) based SS-WDM FSO system is simulated.

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Spectrum-sliced wavelength division multiplexing based free space optical communication employing Differential quadrature phase-shift keying

Yarra¹,

A²

2022

Preprint

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“…The differential phase modulation format DPSK has been reported (PratapRavesh et al 2022) and it was found that DPSK outperforms intensity modulation formats. Therefore, in the proposed SS-WDM-FSO system, another differential phase modulation technique DQPSK, is investigated and a comparison is made with both the investigated DPSK format(Pratap Ravesh et al 2022) and the intensity modulation formats (AditiThakur et al 2021) as displayed in Fig.5.…”

mentioning

confidence: 99%

Spectrum-sliced wavelength division multiplexing based free space optical communication employing Differential quadrature phase-shift keying

Yarra

2022

Preprint

View full text Add to dashboard Cite

With the motive to reduce the high cost incurred in Wavelength division multiplexing (WDM) based free-space optics (FSO) communication system, Spectrum-sliced (SS) WDM based free-space optical communication system at a data rate of 2.5 Gbps per channel is proposed in this research article. Utilizing the broadening of the spectrum by means of supercontinuum generation in a highly non linear Fiber (HNLF), an economical SS-WDM based FSO system is designed. The narrow spectrum of laser light source is broadened by means of self phase modulation (SPM). The proposed work confirms that the DQPSK based SS-WDM FSO system has higher performance compared to other intensity modulation formats as well as differential phase modulation formats. Considering various values of FSO link distances, antenna diameters of transmitter and receiver, beam divergence and thus, determining the values of performance metric such as Q-factor and BER, differential quadrature phase shift keying (DQPSK) based SS-WDM FSO system is simulated.

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An integrated design for improving spectral efficiency of FSO communication system in 6G applications

Sathish,

Mahalingam,

Padmaja

et al. 2024

Int J Communication

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SummaryIn the case of future access networks, such as 6G‐based applications, the free‐space optical communication (FSO) technology is an efficient solution. FSO in 6G is extremely popular because of its unique properties, which include ease of installation, high bandwidth, high security, license‐free long range, and interference resistance. However, environmental disturbances have a negative impact on the FSO system's functioning. Because of these atmospheric turbulences, the optical information gets restricted, which in turn reduces the link reliability, power density, and distance. This paper proposes a hybrid FSO strategy for improving system efficiency to address these problems. Signal creation is fundamental to every successful communication system. The FSO system consists of three components: the transmitter, the channel medium, and the receiver. The transmitter section includes a continuous wave laser, a Mach–Zehnder modulator, a nonreturn to zero transpose Walsh code generator, and a nonreturn to zero pulse generator. Wavelength division multiplexing‐optical code division multiple access‐spectrum slicing (WDM‐OCDMA‐SS) is used to facilitate efficient data transfer after signals have been generated by alternate mark inversion (AMI). In order to boost a weak signal, fused Raman erbium amplifiers (Fuse‐RE) are used. Q factor and log bit error rate (BER) are used to assess the performance of the suggested approach. The proposed model has obtained a log BER of −15.3291 for clear air and a Q factor of 8.2922, whereas the performances are implemented using Python. The proposed approach achieves better performance when compared to the existing methodologies.

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Performance evaluation of SS-FSO communication system incorporating different line coding

Cited by 14 publications

References 16 publications

Spectrum-sliced wavelength division multiplexing based free space optical communication employing Differential quadrature phase-shift keying

Spectrum-sliced wavelength division multiplexing based free space optical communication employing Differential quadrature phase-shift keying

Spectrum-sliced wavelength division multiplexing based free space optical communication employing Differential quadrature phase-shift keying

An integrated design for improving spectral efficiency of FSO communication system in 6G applications

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