Two-Level MPPM-MDPSK Modulation for Free-Space Optical Channels

Elfiqi, Abdulaziz E.; Morra, Ahmed E.; Khallaf, Haitham S.; Shalaby, Hossam M. H.; Hranilovic, Steve

doi:10.1109/glocom.2018.8647624

Cited by 7 publications

(4 citation statements)

References 16 publications

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“…Due to the limited conversion rate of existing DACs, it is difficult for a single high-speed DAC to meet the requirements for high-speed I and Q baseband signals. Two high-speed DACs are needed to achieve synchronization, which is complex to achieve [1][2][3][4]. The high-speed modulation baseband signal of ranging system requires not only the phase synchronization of I and Q baseband signals, but also the deterministic phase between I and Q baseband signals and reference clock.…”

Section: Introductionmentioning

confidence: 99%

Phase synchronization algorithm for high-speed space optical communication modulation baseband signal based on FPGA

Wang,

Su,

Ren

et al. 2024

2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024)

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Section: Introductionmentioning

confidence: 99%

Phase synchronization algorithm for high-speed space optical communication modulation baseband signal based on FPGA

Wang,

Su,

Ren

et al. 2024

2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024)

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“…This hybrid modulation method achieved better bit error rate performance than traditional modulation methods. Elfiqi et al [6] proposed a hybrid two-level MPPM-multi-decimal phase shift keying(2L-MPPM-MDPSK) technology, which achieved higher power and spectral efficiency. Numata et al [7] proposed a scheme that combines multi-pulse position modulation with pulse interval modulation (PSM).…”

Section: Introductionmentioning

confidence: 99%

Spectrum analysis of multi-pulse position modulation in optical communication

Huang¹,

Wu²

2023

HSET

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In this paper, the authors aim to compare the performance of space optical communication and wireless optical communication by analyzing the transmission mechanism, transmission method, and transmission rate of MPPM (Multi-Pulse Pulse Position Modulation). MPPM is a widely used modulation technique in optical communication systems, which has the advantage of reducing the effect of noise and improving the system's error rate. To achieve the objective, the authors will employ mathematical models to compare the performance of space optical communication and wireless optical communication. They will analyze the transmission mechanism, transmission method, and transmission rate of MPPM in both communication systems and draw conclusions based on their findings. The authors hope that the results of this study will positively promote the development of MPPM in the future. By comparing the performance of space optical communication and wireless optical communication, this study will provide insights into the strengths and weaknesses of both systems, which can help in the development of more efficient and reliable optical communication systems.

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“…To further enhance the system performance, the advantages of M-PPM and M-PAM are combined in multiple pulse amplitude and position modulation (M-PAPM) [25]. Alternatively, various modulation formats with different hybrid approaches for OWC system have been proposed over the years [26][27][28][29][30][31][32][33][34]. Hybrid modulation techniques can simultaneously transmit higher data with both high spectral and power efficiencies over traditional modulation techniques [29].…”

Section: Introductionmentioning

confidence: 99%

“…Alternatively, various modulation formats with different hybrid approaches for OWC system have been proposed over the years [26][27][28][29][30][31][32][33][34]. Hybrid modulation techniques can simultaneously transmit higher data with both high spectral and power efficiencies over traditional modulation techniques [29].…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of hybrid MPAPM technique for deep‐space optical communications

2021

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A hybrid multiple pulse amplitude and position modulation (H-MPAPM) scheme based on gradual multi-pulse pulse-position modulation (G-MPPM) and multi-level pulse amplitude modulation (M-PAM) schemes is proposed for deep-space optical communication. In this scheme, transmitted information is conveyed by different combinations of the positions and amplitudes of multiple optical pulses. The performance of the proposed scheme with multi-pulse pulse-position modulation (MPPM), G-MPPM and multiple pulse amplitude and position modulation (M-PAPM) schemes in terms of the number of transmitted symbols, data rate, symbol error rate (SER), bit error rate (BER), bandwidth utilization efficiency and power requirements are studied in this work. Our results reveal that, at the same frame size, the proposed scheme allows much more symbols per frame transmission, achieves higher transmission energy and further enhance the bandwidth utilization efficiency of MPPM, G-MPPM and M-PAPM schemes. Moreover, compared to the MPPM and G-MPPM, the proposed scheme achieves lower levels of SERs but at the expense of peak power levels. Furthermore, the proposed scheme outperforms G-MPPM and MPPM schemes by approximately 1 and 2 dB at a BER of 10 −6 , respectively. In addition, the analytical expressions for the BER and SER of the proposed scheme are validated using Monte Carlo (MC) simulations.

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Two-Level MPPM-MDPSK Modulation for Free-Space Optical Channels

Cited by 7 publications

References 16 publications

Phase synchronization algorithm for high-speed space optical communication modulation baseband signal based on FPGA

Phase synchronization algorithm for high-speed space optical communication modulation baseband signal based on FPGA

Spectrum analysis of multi-pulse position modulation in optical communication

Performance analysis of hybrid MPAPM technique for deep‐space optical communications

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