Implementing green optical waveform system using hybrid cognitive methods for QAM transmission scheme
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Pushpendu Kanjilal
Abstract
This study proposes a hybrid approach combining Energy Detection (ED) and Matched Filter (MF) spectrum sensing techniques to enhance power spectrum density (PSD) in optical Nonorthogonal Multiple Access (NOMA) systems. Optical NOMA has emerged as a key technology for boosting spectral efficiency in optical communication networks. However, optimizing PSD remains a critical challenge due to various factors including signal detection and noise interference. The hybrid ED–MF spectrum sensing method aims to address these challenges by leveraging the strengths of both techniques. Energy Detection (ED) offers simplicity and robustness in detecting primary users, making it suitable for initial spectrum sensing in cognitive radio networks. Matched Filter (MF) spectrum sensing, on the other hand, provides superior signal detection and noise rejection capabilities, particularly in low signal-to-noise ratio (SNR) environments. By integrating these two techniques, we aim to achieve improved sensitivity and accuracy in spectrum sensing, thus enhancing spectral efficiency and system performance in optical NOMA networks. The effectiveness of the proposed hybrid approach is evaluated through theoretical analysis and simulation experiments. Results demonstrate significant enhancements in spectral efficiency and system reliability compared to conventional spectrum sensing methods, highlighting the potential of the hybrid ED–MF approach for enhancing PSD in optical NOMA systems. This research contributes to advancing the design and optimization of optical communication systems for future high-capacity and high-speed data transmission applications. The PSD values −920 are obtained and it confirmed that the proposed algorithm outperforms the standard algorithms.
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Research ethics: Not applicable.
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Author contributions: All authors have contributed equally to this paper.
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Competing interests: The authors state no conflict of interest.
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Research funding: NA.
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Data availability: Not applicable.
References
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© 2024 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Amplifiers
- Detailed scrutiny of FWM in holmium-doped fiber amplifier (HOFA) in WDM systems
- A double clad ASE Re-injected hybrid TDFA and HDFA amplifier with ±1.44 dB GF
- Detectors
- Performance parameters estimation of high speed Silicon/Germanium/InGaAsP avalanche photodiodes wide bandwidth capability in ultra high speed optical communication system
- Devices
- Performance study of microwave photonic links by considering the effect of phase shifters and bias conditions on dual-drive dual parallel Mach–Zehnder modulator
- Fibers
- High birefringence low loss nearly zero flat dispersion similar to slotted core photonic crystal fibers
- Comparative analysis of high index core micro structured optical fibers (HIMSOF) and hollow core band gap fibers (HCBGF) performance efficiency in fiber communication system
- Management of lateral misalignment loss and total insertion loss with beam waist control in high contrast single mode coupling fibers
- Networks
- Enabling ultra-high bit rate transmission with CFBG as dispersion compensator in an OptiSpan 240 km DWDM network
- Performance and energy efficiency enhancement of existing optical communication systems by incorporating resource allocation on demand technique in FiWi networks
- A fiber-wireless integration approach in WDM-PON architecture, boosted with polarization multiplexing and optical frequency comb source
- Optimizing Fi-Wi network performance through advanced multiplexing techniques: a comparative analysis for enhanced quality metrics
- Synergizing intelligent signal processing with wavelength-division multiplexing for enhanced efficiency and speed in photonic network communications
- Systems
- Simulation design for Ro-FSO communications system by digital modulation schemes
- Implementing green optical waveform system using hybrid cognitive methods for QAM transmission scheme
- MZM–SOA based RoF system for 30-tuple millimeter-wave generation
- Hybrid optical-electronic compensation of fiber nonlinearity for long-haul coherent optical transmission
- High speed operation efficiency of doped light sources with the silica-doped fiber channel for extended optical fiber system reach
- Relative intensity noise management and thermal/shot noise control for high speed ultra high bandwidth fiber reach transmission performance
- Simulative analysis of carrier suppressed return to zero based symmetrical compensated optical link
- A combination of DST precoder and ICF based-methods for PAPR suppression in OFDM signal
- Evaluating the effectiveness of various diversity and combining techniques on an RF-FSO link
- Comparative study of DCT-and DHT-based OFDM systems over doubly dispersive fading channels
- Design and performance of WDM system for high-speed optical communication on different modulation formats
- Transmission of data rate by radio over free space optical communications system under turbulence conditions
- Implementation of companding scheme for performance enhancement of optical OFDM structure
- Theory
- High thermal stability and high-performance efficiency capability of light sources–based rate equation models in optical fiber transmission systems
Artikel in diesem Heft
- Frontmatter
- Amplifiers
- Detailed scrutiny of FWM in holmium-doped fiber amplifier (HOFA) in WDM systems
- A double clad ASE Re-injected hybrid TDFA and HDFA amplifier with ±1.44 dB GF
- Detectors
- Performance parameters estimation of high speed Silicon/Germanium/InGaAsP avalanche photodiodes wide bandwidth capability in ultra high speed optical communication system
- Devices
- Performance study of microwave photonic links by considering the effect of phase shifters and bias conditions on dual-drive dual parallel Mach–Zehnder modulator
- Fibers
- High birefringence low loss nearly zero flat dispersion similar to slotted core photonic crystal fibers
- Comparative analysis of high index core micro structured optical fibers (HIMSOF) and hollow core band gap fibers (HCBGF) performance efficiency in fiber communication system
- Management of lateral misalignment loss and total insertion loss with beam waist control in high contrast single mode coupling fibers
- Networks
- Enabling ultra-high bit rate transmission with CFBG as dispersion compensator in an OptiSpan 240 km DWDM network
- Performance and energy efficiency enhancement of existing optical communication systems by incorporating resource allocation on demand technique in FiWi networks
- A fiber-wireless integration approach in WDM-PON architecture, boosted with polarization multiplexing and optical frequency comb source
- Optimizing Fi-Wi network performance through advanced multiplexing techniques: a comparative analysis for enhanced quality metrics
- Synergizing intelligent signal processing with wavelength-division multiplexing for enhanced efficiency and speed in photonic network communications
- Systems
- Simulation design for Ro-FSO communications system by digital modulation schemes
- Implementing green optical waveform system using hybrid cognitive methods for QAM transmission scheme
- MZM–SOA based RoF system for 30-tuple millimeter-wave generation
- Hybrid optical-electronic compensation of fiber nonlinearity for long-haul coherent optical transmission
- High speed operation efficiency of doped light sources with the silica-doped fiber channel for extended optical fiber system reach
- Relative intensity noise management and thermal/shot noise control for high speed ultra high bandwidth fiber reach transmission performance
- Simulative analysis of carrier suppressed return to zero based symmetrical compensated optical link
- A combination of DST precoder and ICF based-methods for PAPR suppression in OFDM signal
- Evaluating the effectiveness of various diversity and combining techniques on an RF-FSO link
- Comparative study of DCT-and DHT-based OFDM systems over doubly dispersive fading channels
- Design and performance of WDM system for high-speed optical communication on different modulation formats
- Transmission of data rate by radio over free space optical communications system under turbulence conditions
- Implementation of companding scheme for performance enhancement of optical OFDM structure
- Theory
- High thermal stability and high-performance efficiency capability of light sources–based rate equation models in optical fiber transmission systems
