Performance analysis of CO-OFDM FSO system under different weather conditions

Patel, Piyush N.; Mishra, Vivekanand; Singh, Vivek

doi:10.1109/et2ecn.2014.7044972

Cited by 12 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Panda and Bhanja (2021) reported an improved performance evaluation of OFDM-FSO scheme by designing a modified OFDM receiver. In the previous works reported in (Sharma, 2014;Patel et al, 2014;Nistazakis et al, 2016;Attri et al, 2017;Zhang et al, 2018;Ajewole et al, 2019;Gupta et al, 2019;Hario et al, 2019;Darwesh and Kopeika, 2020;Panda and Bhanja, 2021) single-channel OFDM transmission has been discussed over free-space channel. Further enhancement of transmission capacity of FSO can be achieved by employing more OFDM channels transmission simultaneously which can be achieved using Wavelength-Division Multiplexed (WDM) transmission.…”

Section: Literature Surveymentioning

confidence: 99%

“…A faithful transmission along 3 km range is reported with favourable Signal-to-Noise Ratio (SNR) at the demodulator. Patel et al (2014) reported an OFDM-FSO transmission scheme with coherent detection and reported performance comparison of 2 Gbps and 5 Gbps information transmission rates of the link. The maximum range for clear atmospheric conditions is reported as 17 km at 2 Gbps and 14 km at 5 Gbps information rate.…”

Section: Literature Surveymentioning

confidence: 99%

See 1 more Smart Citation

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

Suman¹,

Kumar²

2021

Journal of Computer Science

View full text Add to dashboard Cite

We report the simulation-modelling and evaluation of an integrated Orthogonal-Frequency Division Multiplexed (OFDM)-Mode-Division Multiplexed (MDM) Radio-on-Free Space Optics (Ro-FSO) scheme carrying 2-independent 40 GHz millimetre waves (mm Wave) at 20 Gbps per channel for 5 th generation wireless applications. The reported Ro-FSO scheme transports 2-independent 20 Gbps 4-Quadrature-Amplitude Modulated (4-QAM) signals, each carrying 40 GHz mm Wave signal over 2-distinct Laguerre-Gaussian (LG) modal beams and their performance evaluation is carried out for varying levels of clear and foggy weather. Also, we have taken into consideration the effect of increasing size of optical beam signal on the reported scheme performance. The reported results elucidate favourable transportation of both mm Wave signals along 40 km range for clear sky and 1.5 km for heavy-foggy weather.

show abstract

Section: Literature Surveymentioning

confidence: 99%

Section: Literature Surveymentioning

confidence: 99%

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

Suman¹,

Kumar²

2021

Journal of Computer Science

View full text Add to dashboard Cite

show abstract

“…While Farhan et al [21] using chaos and Barua and Majumder [22] using LDPC (low-density parity-check code) FSO communication employing OOK (on-off keying), BPSK (binary phase-shift keying), and QPPM (Q-ary pulse position) as modulation technique It is found that LDPC coded FSO system with QPPM provides significant coding gain over uncoded system compare than other modulation techniques. On another hand an OFDM (orthogonal frequency-division multiplexing) FSO link with optical intensity modulation and coherent homodyne receiver taking into consideration [23], [24]. It is noticed that effect of turbulence can be significantly reduced by increasing the number of OFDM subcarrier.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of beam divergence propagation through rainwater and snow pack in free space optical communication

2021

View full text Add to dashboard Cite

In the present work the future communication requirements need to fulfill with high data rate, FSO (free space optic) with it is tremendous potential is the solution. This research observed the effectiveness analysis of FSO systems by modifying one of the most important FSO parameters beam divergence, under the most affected weather attenuating condition Rainwater and snow pack. The simulation is obtained and analyzed under single channels CSRZ-FSO (carrier-suppressed return-to-zero/free space optical) systems having capacity of 40 Gbps between two transceivers with variable distance. The connection is presently under 5 meteorological turbulences (light rain, medium rain, wet snow, heavy rain and dry snow). The results show the heavy rain and dry snow have a very high attenuation carried out in terms of Q-factor. this result led us to conclude that small divergence offers significant performance improvement for FSO link and this performance decrease every time the beam divergence increase, Therefore, to build inexpensive and reliable transmission media, we go with new method that still in the experiment area called hybrid RF/FSO (radio frequency/free space optical) that compatible with atmospherically status.

show abstract

Performance analysis of coherent free‐space optics transmission link using in‐phase quadrature modulator‐based polarization multiplexed‐256‐quadrature amplitude modulation

Konda

Velayudham

Venkatesan

2021

Trans Emerging Tel Tech

View full text Add to dashboard Cite

A single‐channel high information rate free‐space optics transmission link is presented incorporating in‐phase quadrature modulator‐based polarization multiplexed‐256‐quadarature amplitude modulation scheme. An information rate of 160 Gbit/s with 10 Gbaud symbol rate is achieved for free‐space information transmission. Advanced digital signal processing techniques at the receiver along coherent detection have been used to compensate the losses incurred by the information signal propagating the free‐space media. The transmission performance of the proposed link has been enhanced by using different optical amplifiers, that is, Erbium‐doped fiber amplifier and semiconductor optical amplifier, and their performance has been compared. The link performance is analyzed for required laser line width, launch power requirements, increasing transmission range, increasing beam divergence angle and optical power required at the receiver. Bit error rate and error vector magnitude metrics have been used to analyze the link performance. A maximum transmission of 3.9 km for clear weather atmospheric conditions is achieved. The proposed link has the potential to meet the last‐mile access needs and to provide high‐bandwidth high‐speed information links required for future fifth generation wireless communication and Internet of Things applications.

show abstract

Performance analysis of CO-OFDM FSO system under different weather conditions

Cited by 12 publications

References 3 publications

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

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

Performance analysis of beam divergence propagation through rainwater and snow pack in free space optical communication

Performance analysis of coherent free‐space optics transmission link using in‐phase quadrature modulator‐based polarization multiplexed‐256‐quadrature amplitude modulation

Contact Info

Product

Resources

About