Performance analysis of DP-QPSK with CO-OFDM using OSSB generation

Kaur, Simarpreet

doi:10.1007/s11276-022-02933-x

Cited by 9 publications

(4 citation statements)

References 39 publications

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“…We considered LG mode profiles with larger differences such as LG00, LG140, and LG400 to realize OAM multiplexing, and it was observed that mode coupling becomes insignificant in these distant mode profiles as compared to the reported research where LG/HG modes with lesser gaps are considered [ 1 , 43 , 44 , 58 ]. We performed an extensive literature survey and found that the highest capacity that has been reported so far in OSC is 4 [ 44 ], 3.84 [ 61 ], 1.6 Tbps [ 62 ], and 320 Gbps [ 63 ]. Therefore, an ultra-high capacity 4.8 Tbps OSC-OAM system was presented for the first time in this work.…”

Section: Discussionmentioning

confidence: 99%

“…In this section, the performance of the proposed OAM-OSC system is compared with the different reported OSC systems in terms of data rate, channels, capacity, OSC link length, modulation used, multiplexing employed, and performance, as shown in Table 2 . It is observed that the highest capacity is accomplished in the proposed work as compared to [ 41 , 42 , 44 , 61 , 62 , 63 ]. Moreover, the use of DQPSK [ 41 ], 4-QAM/PSK-OFDM [ 43 ], PDM-QPSK [ 44 ], SP-QAM [ 59 ], PDM-4-QAM [ 37 ], PDM-16-QAM [ 58 ], PDM-64-QAM [ 59 ], and PDM-128-QAM [ 62 ] have been reported in these researches.…”

Section: Investigation Of Proposed Oam-osc System At Different Input ...mentioning

confidence: 99%

“…It is observed that the highest capacity is accomplished in the proposed work as compared to [ 41 , 42 , 44 , 61 , 62 , 63 ]. Moreover, the use of DQPSK [ 41 ], 4-QAM/PSK-OFDM [ 43 ], PDM-QPSK [ 44 ], SP-QAM [ 59 ], PDM-4-QAM [ 37 ], PDM-16-QAM [ 58 ], PDM-64-QAM [ 59 ], and PDM-128-QAM [ 62 ] have been reported in these researches. However, the proposed system has employed high spectral efficiency (eight bits per symbol) based PDM-256-QAM in OSC-OAM system.…”

Section: Investigation Of Proposed Oam-osc System At Different Input ...mentioning

confidence: 99%

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Ultra-High Capacity Optical Satellite Communication System Using PDM-256-QAM and Optical Angular Momentum Beams

Sachdeva

Kaur

Arora

et al. 2023

Sensors

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Twisted light beams such as optical angular momentum (OAM) with numerous possible orthogonal states have drawn the prodigious contemplation of researchers. OAM multiplexing is a futuristic multi-access technique that has not been scrutinized for optical satellite communication (OSC) systems thus far, and it opens up a new window for ultra-high-capacity systems. This paper presents the 4.8 Tbps (5 wavelengths × 3 OAM beams × 320 Gbps) ultra-high capacity OSC system by incorporating polarization division multiplexed (PDM) 256-Quadrature amplitude modulation (256-QAM) and OAM beams. To realize OAM multiplexing, Laguerre Gaussian (LG) transverse mode profiles such as LG00, LG140, and LG400 were used in the proposed study. The effects of the receiver’s digital signal processing (DSP) module were also investigated, and performance improvement was observed using DSP for its potential to compensate for the effects of dispersion, phase errors, and nonlinear effects using the blind phase search (BPS), Viterbi phase estimation (VPE), and the constant modulus algorithm (CMA). The results revealed that the proposed OAM-OSC system successfully covered the 22,000 km OSC link distance and, out of three OAM beams, fundamental mode LG00 offered excellent performance. Further, a detailed comparison of the proposed system and reported state-of-the-art schemes was performed.

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Section: Discussionmentioning

confidence: 99%

Section: Investigation Of Proposed Oam-osc System At Different Input ...mentioning

confidence: 99%

Section: Investigation Of Proposed Oam-osc System At Different Input ...mentioning

confidence: 99%

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Ultra-High Capacity Optical Satellite Communication System Using PDM-256-QAM and Optical Angular Momentum Beams

Sachdeva

Kaur

Arora

et al. 2023

Sensors

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“…Compared with the ANN-CEA, this algorithm can reduce the bit error rate (BER) performance by 50%. [20] proposed OSSB generation can provide a tunable optical carrier-to-sideband ratio by adjusting the polarization controller and the mathematical principle is also discussed. Security of the system is improved by employing matched filter before DSP which has the property of noise rejection i.e.…”

Section: Literature Reviewmentioning

confidence: 99%

Highly Accurate Technique for CO-OFDM Channel Estimation Technique Using Extreme Learning Machine (ELM)

Joseph

Puttamadappa

2023

Wseas Transactions on Electronics

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In wireless systems, channel estimation is considered a problematic technology, due to the fact of the difference in time between wireless channels and the noise effect. Orthogonal frequency-division multiplexing (OFDM) is a promising candidate for future optical communications and has received wide concern. The article proposed a Coherent Optical (CO) orthogonal frequency division multiplexing (OFDM) scheme, which gives a scalable and flexible solution for increasing the transmission rate, being extremely robust to chromatic dispersion as well as polarization mode dispersion. Nevertheless, both coherent detection and OFDM are prone to phase noise due to the phase mismatch between the laser oscillators at the transmitter and receiver sides and the relatively long OFDM symbol duration compared to that of single carrier communications. An Extreme Learning Machine (ELM) with Pilot Assisted Equalization (PEM) is proposed for compensation of impairments caused by fibre nonlinearity in coherent optical communication systems. Channel estimation using ELM and the value of distortion is sent to the OSTBC receiving end based on the distortion information the data is decoded and pilot data is removed. FFT is applied to the data and QPSK demodulation is done in the data to get its original form. In addition, the article utilized a free-space optical communication system of multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) with a modified receiver structure. Simulation reveals that the proposed model exhibits significant BER (0.0112) performance and provides better spectral efficiency as compared with conventional systems and less computational complexity. This suggested that the proposed method shows better performance by using the CO-OFDM-FSO-MIMO-ELM-based channel estimation technique for high-speed data communication networks in real-time scenarios respectively.

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A high power 320 Gbps CPDM-256-QAM based Ro-FSO system enabling 80 GHz under rain and haze effects

Ghatwal

Saini²

2022

Opt Quant Electron

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Performance analysis of DP-QPSK with CO-OFDM using OSSB generation

Cited by 9 publications

References 39 publications

Ultra-High Capacity Optical Satellite Communication System Using PDM-256-QAM and Optical Angular Momentum Beams

Ultra-High Capacity Optical Satellite Communication System Using PDM-256-QAM and Optical Angular Momentum Beams

Highly Accurate Technique for CO-OFDM Channel Estimation Technique Using Extreme Learning Machine (ELM)

A high power 320 Gbps CPDM-256-QAM based Ro-FSO system enabling 80 GHz under rain and haze effects

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