Siti Barirah Ahmad Anas
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View article: Additive-Enhanced SnO2 FBG Sensor with Optimized Annealing Time, Temperature, and Multilayer Coating for High-Performance Humidity Sensing
Additive-Enhanced SnO2 FBG Sensor with Optimized Annealing Time, Temperature, and Multilayer Coating for High-Performance Humidity Sensing Open
Coating plays an important role in advancing sensing technology by significantly enhancing sensitivity, stability, and response time. The unique properties of nanostructures, including high surface-to-volume ratio and tunable porosity, mak…
View article: Advancing 5G Communication Systems: A Novel Method for OOBE Suppression in Filter-OFDM Waveforms
Advancing 5G Communication Systems: A Novel Method for OOBE Suppression in Filter-OFDM Waveforms Open
View article: Frequency Octupling Radio over Fiber System with Multiple Remote Antenna Units
Frequency Octupling Radio over Fiber System with Multiple Remote Antenna Units Open
Bidirectional radio over fiber (RoF) transmission to multiple remote antenna units (RAUs) with frequency octupling is proposed in this paper. The proposed RoF system uses a dual-port Mach-Zehnder modulator (DP-MZM) and an arrayed waveguide…
View article: Analysis and mitigation of stimulated Raman scattering effects in OTDR monitored optical link
Analysis and mitigation of stimulated Raman scattering effects in OTDR monitored optical link Open
The co-existence of both traffic signal and optical time-domain reflectometer (OTDR) signal in active fiber monitoring will affect the dynamic range of the OTDR due to backscattered stimulated Raman scattering (SRS). In this paper, a simul…
View article: Analysis and Mitigation of Stimulated Raman Scattering Effects in Otdr Monitored Optical Link
Analysis and Mitigation of Stimulated Raman Scattering Effects in Otdr Monitored Optical Link Open
View article: Comprehensive Investigation and Evaluation of an Indoor 3D System Performance Based on Visible Light Communication
Comprehensive Investigation and Evaluation of an Indoor 3D System Performance Based on Visible Light Communication Open
The abstract discusses the significance of Visible Light Communication (VLC) as an efficient and cost-effective solution in the era of green technology. VLC not only provides illumination but also high-speed data transmission through exist…
View article: A method for mitigating the phase imbalance and insertion loss in the optical mm- wave system for 5G communication network
A method for mitigating the phase imbalance and insertion loss in the optical mm- wave system for 5G communication network Open
In this paper, an optical millimeter-wave (mm-wave) generated using a signal Mach Zehnder modulator (MZM) is proposed for a 5G communication network. This paper presents the mitigation process of phase imbalance and the insertion loss of t…
View article: Effect of additive concentration on crystalline surface of ZnO nanostructures morphology for enhanced humidity sensing
Effect of additive concentration on crystalline surface of ZnO nanostructures morphology for enhanced humidity sensing Open
Zinc oxide (ZnO) possesses unique nanostructures. Most ZnO nanostructures have yet seen its use as coating for fiber Bragg grating (FBG) sensors. The properties of zinc oxide nanostructure can be greatly influenced by different additives a…
View article: An Efficient 3D Indoor Positioning System Based on Visible Light Communication
An Efficient 3D Indoor Positioning System Based on Visible Light Communication Open
In this communication revolution era, visible light communication (VLC) is the optimum efficacious answer to the increased request for high-speed data transmission with reduced cost, besides the illumination. This technology is considered …
View article: Effect of Phase Noise on the Optical Millimeter-Wave Signal in the DWDM-RoF System
Effect of Phase Noise on the Optical Millimeter-Wave Signal in the DWDM-RoF System Open
In this study, we examined the effect of phase noise on the optical millimeter-wave (mm-wave) signal in a dense wavelength division multiplexing radio-over-fiber (DWDM-RoF) system. A single modulator was used to generate the optical mm-wav…
View article: Compensation of The Nonlinear Impairments in All-Optical OFDM Systems Based on The Optical Phase Conjugation (OPC) Module
Compensation of The Nonlinear Impairments in All-Optical OFDM Systems Based on The Optical Phase Conjugation (OPC) Module Open
This study presents a nonlinearity mitigation technique for achieving high performance in the All-Optical Orthogonal Frequency Division Multiplexing (AO-OFDM) transmission systems. Therefore, the Optical Phase Conjugation (OPC) technique h…
View article: Modulation Index and Phase Imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in Optical Millimeter-Wave System
Modulation Index and Phase Imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in Optical Millimeter-Wave System Open
This paper presents a Dual-sideband Optical Carrier Suppression (DSB-OCS) technique which is used to generate an optical millimeter-wave (mm-wave) signal in radio over fiber (RoF) systems. The proposed system employs a Dual-Electrode Mach-…
View article: Real Time <i>in Situ</i> Remote Monitoring for Cladding Modified SMF Integrating Nanocomposite Based Ammonia Sensors Deploying EDFA
Real Time <i>in Situ</i> Remote Monitoring for Cladding Modified SMF Integrating Nanocomposite Based Ammonia Sensors Deploying EDFA Open
The increased deployment of optical fiber sensors along with the development of internet of things has increased the demand for real-time in situ remote monitoring systems in the optical sensing industry. Etched-tapered single-mode optical…
View article: Characterization of hysteresis free, low-temperature hydrothermally synthesized zinc oxide for enhanced humidity sensing
Characterization of hysteresis free, low-temperature hydrothermally synthesized zinc oxide for enhanced humidity sensing Open
The hygroscopic properties of a material allow water retention and release of water vapor from surface of a nanostructure. Most nanostructure exhibit morphological change due to swelling or directional expansion upon water intake. The stud…
View article: Hygroscopic Materials and Characterization Techniques for Fiber Sensing Applications: A Review
Hygroscopic Materials and Characterization Techniques for Fiber Sensing Applications: A Review Open
Influence of bacterial organic selenium on blood parameters, immune response
View article: Sensing Performance of Modified Single Mode Optical Fiber Coated With Nanomaterials-Based Ammonia Sensors Operated in the C-Band
Sensing Performance of Modified Single Mode Optical Fiber Coated With Nanomaterials-Based Ammonia Sensors Operated in the C-Band Open
An etched tapered single mode optical fiber (SMF) coated with polyaniline (PANI) nanofibers is developed to detect ammonia (NH3) in low concentrations. The SMF is etched with hydrofluoric acid and subsequently tapered using a gl…
View article: Performance evaluation of an efficient RZ-MQAM modulation scheme in all-optical OFDM transmission systems
Performance evaluation of an efficient RZ-MQAM modulation scheme in all-optical OFDM transmission systems Open
All optical orthogonal frequency division multiplexing (AO technique and employed in many military applications for data transmission over long distance.But AO-OFDM signals are very sensitive to nonlinear distortion and thes suffer from no…
View article: Variable-Weight Optical Code Division Multiple Access System using Different Detection Schemes
Variable-Weight Optical Code Division Multiple Access System using Different Detection Schemes Open
In this paper a Variable Weight OCDMA (VWOCDMA) system using KS code with Direct Decoding (DD), Complementary Subtraction (CS) and AND subtraction detections is proposed. System performance is analyzed using mathematical approximation and …
View article: SAC-OCDMA over Hybrid FTTx Free Space Optical Communication Networks
SAC-OCDMA over Hybrid FTTx Free Space Optical Communication Networks Open
This paper presents an investigation of Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) over hybrid Fiber-to-the-x (FTTx) Free Space Optical (FSO) link under different weather conditions. FTTx and FSO are the la…