Rahmat Talib
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View article: Investigation of Multiple LED Array Failure on DCO-FBMC Modulation for Indoor Visible Light Communication
Investigation of Multiple LED Array Failure on DCO-FBMC Modulation for Indoor Visible Light Communication Open
Visible light communication (VLC) is a high-speed and power-efficient optical wireless communication method that has gained momentum for data transmission in indoor environments. Indoor VLC systems often use multiple LED arrays to increase…
View article: Technique for Channel Equalization in Visible Light Communication Employing Direct Current-Based Optical Filter Bank Multicarrier Modulation
Technique for Channel Equalization in Visible Light Communication Employing Direct Current-Based Optical Filter Bank Multicarrier Modulation Open
Visible Light Communication (VLC) has gained recognition as a potential technology for high-speed indoor wireless communication and 6-G applications. Filter bank multicarrier (FBMC) is a multi-carrier modulation that provides better spectr…
View article: Flood Level Detection System using Ultrasonic Sensor and ESP32 Camera: Preliminary Results
Flood Level Detection System using Ultrasonic Sensor and ESP32 Camera: Preliminary Results Open
An efficient flood detection system needs to be developed immediately due to the frequency of floods in areas where visitors are concentrated in Malaysia, especially during the monsoon season or when there is heavy rain that makes it diffi…
View article: Effect of Line-of-sight Channels on DC-biased Optical Filter Bank Multicarrier Visible Light Communication with Multiple LED Arrays
Effect of Line-of-sight Channels on DC-biased Optical Filter Bank Multicarrier Visible Light Communication with Multiple LED Arrays Open
This paper investigates the impact of propagation delay and channel loss due to the use of multiple LED arrays in visible light communication (VLC) systems based on filter bank multicarrier (FBMC) modulation. FBMC offers greater spectral e…
View article: High Sensitivity Prototype Kit with IoT System for Fire Detection in a Peatland Swamp Forest Area
High Sensitivity Prototype Kit with IoT System for Fire Detection in a Peatland Swamp Forest Area Open
Smoke sensor of the photoelectric type is often used in indoor fire detection system. It is very sensitive to fire smoke and will trigger a fire alarm quickly when the presence of smoke is detected.By making a small innovation, this sensor…
View article: Visible light communication using new Flip-FBMC modulation system technique
Visible light communication using new Flip-FBMC modulation system technique Open
Filter bank multi-carrier (FBMC) modulation in the visible light communication (VLC) system is one of the most promising modulation systems in optical wireless communications (OWC), especially in 5G and 6G future applications. FBMC has a w…
View article: Enhanced Flip-FBMC visible light communication model
Enhanced Flip-FBMC visible light communication model Open
VLC technology is one of the most promising technologies in the generations of communications, especially 5G after the significant development of optical semiconductors, specific laser diode, and the use of FBMC modulation in the system. D…
View article: Design and Built a Prototype Kit for Fire Detection in a Peat Swamp Forest: A Preliminary Results
Design and Built a Prototype Kit for Fire Detection in a Peat Swamp Forest: A Preliminary Results Open
Peat forest fire detectors need to be developed immediately due to the frequency of peat forest fires in Malaysia during the summer is very high. This can affect the life in the forest and the health of the surrounding population. Among th…
View article: Comparison study of 8-PPM, 8-DPIM, and 8-RDH-PIM modulator FPGA hardware design in term of bandwidth efficiency and transmission rate
Comparison study of 8-PPM, 8-DPIM, and 8-RDH-PIM modulator FPGA hardware design in term of bandwidth efficiency and transmission rate Open
In this paper, a performance study of 8-Pulse-Position Modulation (PPM), 8-Digital Pulse Interval Modulation (DPIM), and 8-Reverse Dual Header-Pulse Interval Modulation (RDH-PIM) implementation in Verilog hardware design language is presen…
View article: Application of Sagnac Interferometer for Temperature Monitoring: Experimental Study
Application of Sagnac Interferometer for Temperature Monitoring: Experimental Study Open
Temperature sensors have been widely used in industries and they have found applications in food processing units, medical devices, chemical handling processes, automotive and agriculture. In the market, there currently exist many varietie…
View article: Adaptive DCO-FBMC in Visible Light Communication
Adaptive DCO-FBMC in Visible Light Communication Open
Filter Bank multicarrier (FBMC) has been modified for VLC. FBMC is the main filter suitable for high-speed data transfer using multicarrier modulation (MCM). Therefore, the FBMC is an appropriate alternative to the OFDM system which suffer…
View article: Low complexity DCO-FBMC visible light communication system
Low complexity DCO-FBMC visible light communication system Open
Filter Bank Multicarrier (FBMC) is a new waveform candidate in the visible light communication system (VLC). FBMC is a distinctive kind of multi-carrier modulation that can be regarded as an alternative to orthogonal frequency Division Mul…
View article: Impact of Random Dispersion Fluctuations on Two-Pump Fiber Optical Parametric Amplifier Performances
Impact of Random Dispersion Fluctuations on Two-Pump Fiber Optical Parametric Amplifier Performances Open
The impact of random dispersion fluctuations on two-pump (2-P) fiber optical parametric amplifier (FOPA) performance in terms of parametric gain, 3-dB amplification bandwidth and saturation power is numerically investigated.The four-couple…
View article: Fiber Laser Temperature Sensor based on Sagnac Interferometer
Fiber Laser Temperature Sensor based on Sagnac Interferometer Open
A fiber laser temperature sensor which is based on Sagnac interferometer is proposed in this work. The fiber laser consists of an erbium-doped fiber amplifier for signal amplification and a Sagnac interferometer for signal filtering. The S…
View article: Optical Temperature Sensor based on Sagnac Interferometer
Optical Temperature Sensor based on Sagnac Interferometer Open
Optical temperature sensors gain interest from the community recently due to their immunity to electromagnetic interference and ruggedness against chemical and mechanical disturbances as opposed to the conventional temperature sensors such…
View article: The effect of pump parameters on dual-pump fiber optical parametric amplifier
The effect of pump parameters on dual-pump fiber optical parametric amplifier Open
The impact of pump parameters on dual-pump (2-P) fiber optical parametric amplifier (FOPA) is investigated. The four-wave model of coupled amplitude equations with fiber losses and pump depletion are solved numerically for the calculation …
View article: Effect of Pump Dithering at Each Stage of Cascaded Fiber Optical Parametric Amplifier
Effect of Pump Dithering at Each Stage of Cascaded Fiber Optical Parametric Amplifier Open
Cascaded fiber optical parametric amplifier (FOPA) can enhance gain and bandwidth. The gain and bandwidth can be further enhanced by dithering the FOPA pump. However, to our knowledge, the effects of a pump dithering at every stage of casc…
View article: The Future Electrical Multiplexing Technique for High Speed Optical Fibre
The Future Electrical Multiplexing Technique for High Speed Optical Fibre Open
Advancement in transmission technology based on fiber optic such as multiplexing technique is an attractive research area for future development of high capacity and high speed optical communication system. Typical electrical based multipl…
View article: The influence of dispersion slope to the higher-order dispersion coefficients for highly-nonlinear fibers
The influence of dispersion slope to the higher-order dispersion coefficients for highly-nonlinear fibers Open
The highly-nonlinear fiber is the ideal gain medium for many applications particularly because its dispersion can be easily engineered. However, the modification of the fiber dispersion will affect the higher-order dispersion coefficients.…
View article: Students paperwork tracking system (SPATRASE)
Students paperwork tracking system (SPATRASE) Open
This paper focused on a system for tracking the status of the paperwork using the Near Field Communication (NFC) technology and mobile apps. Student paperwork tracking system or known as SPATRASE was developed to ease the user to track the…
View article: Multi slot amplitude coding technique for high speed optical fiber communication system
Multi slot amplitude coding technique for high speed optical fiber communication system Open
The rapid progress of the high speed optical communications system is driven by the exponential growth of users demand on information and services. The trend towards high speed and high capacity transmission system are multiplexing techniq…