Implementation of companding scheme for performance enhancement of optical OFDM structure
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Pushpendu Kanjilal
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Soumitra Bhowmick
Abstract
Due to its great spectral efficiency and resistance to multi-path fading, OFDM, or orthogonal frequency division multiplexing, is commonly utilized in optical communication systems. However, because of nonlinear distortions in optical components, OFDM signals are prone to a high peak-to-average power ratio (PAPR), which can severely impair bit error rate (BER) performance. This paper introduces a companding scheme to address high PAPR in optical OFDM systems and improve BER performance. The proposed scheme uses a nonlinear transformation to compress signal peaks and expand valleys, effectively reducing PAPR. Specifically, we investigate the µ-law companding technique, known for its simplicity and effectiveness in handling the active range of OFDM signals in optical communication. The companded signals are transmitted through an optical link and demodulated at the receiver. Simulation results show that the µ-law companding technique substantially reduces PAPR, leading to a significant improvement in BER performance. The companding process maintains signal integrity and spectral efficiency with minimal computational complexity and implementation cost. By mitigating nonlinearities introduced by optical components, this companding scheme enhances the overall reliability and efficiency of the optical OFDM system. An SNR gain of 2 dB–3 dB was achieved at a BER of 10−3.
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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: Not applicable.
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Data availability: Not applicable.
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© 2024 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Amplifiers
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- A double clad ASE Re-injected hybrid TDFA and HDFA amplifier with ±1.44 dB GF
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- 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
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- 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
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- 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
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- 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
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- 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
Articles in the same Issue
- 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
