Norliza Mohamed

Universiti Teknologi Malaysia | UTM · Razak Faculty of Technology and Informatics

A metallic cylinder is one of the best materials and shapes to calibratingradar system performance. In addition toits reflective properties, metallic cylindersallow foraccurate modeling for prediction of radar cross-section (RCS). This study presents themeasurement of a metallic cylinder with a diameter of 4cm and a height of 3cm as a target,analyz...

This paper discusses an extended modulation mapping technique to improve hybrid automatic repeat request (ARQ) protocols by reducing communication errors in wireless systems. The extended mapping (EM) hybrid ARQ (HARQ) protocol has been developed using irregular repetition code with turbo processing. This protocol uses EM and ARQ to improve efficie...

In this modern era, medical image sharing has become a routine activity within hospital information systems. Digital medical images have become valuable resources that aid health care systems’ decision-making and treatment procedures. A medical image consumes a significant amount of memory, and the size of medical images continues to grow as medica...

The study of the correlation between Emotional Intelligence (EI) and work performance is crucial for the organisation. Some of the organisations do not consider EI skills as the work performed. This study investigates the correlation between EI and the work performance of a telecommunication research company in Malaysia. There are 66 participants i...

Microstrip antennas are one of the most widely used types of antennas in various applications in communication systems. However, microstrip antenna experiences imbalance impedance, which in turn affects the performance of the antenna with narrow bandwidth as well as reducing the radiation emission of the radio wave. Therefore, in this paper increas...

Advanced technology in agriculture has enabled the manipulation of the artificial light spectrum in plant development such as improving yield and plant growth. Light manipulation using light-emitting diodes or LEDs can inhibit, delay, or even promote flowering. Some studies have shown that far-red (FR) light can stop flowering, but studies have not...

The Internet of Things (IoT) is a rising innovation, including a wide range of uses identified with modern control, savvy metering, home mechanization, horticulture, health, etc. For these applications to run independent the IoT gadgets are required to make do for a considerable length of time and years under severe vitality imperatives. When growi...

The progressions in telecommunication beyond the 5th generation have created a need to improve research drifts. The current 5G study has an important focus on non-orthogonal multiple access (NOMA) technology. Sparse Code Multiple Access (SCMA) is a promising technique within NOMA, enhancing the multi-user handling capability of next-generation comm...

span lang="EN-GB">The progressions in telecommunication beyond the 5^th generation have created a need to improve research drifts. The current 5G study has an important focus on non-orthogonal multiple access (NOMA) technology. sparse code multiple access (SCMA) is a promising technique within NOMA, enhancing the multi-user handling capab...

The progressions in telecommunication beyond the 5th generation have created a need to improve research drifts. The current 5G study has an important focus on non-orthogonal multiple access (NOMA) technology. Sparse code multiple access (SCMA) is a promising technique within NOMA, enhancing the multi-user handling capability of next-generation comm...

The 10-Gigabit Passive Optical Network (GPON), also known as (XGPON), is a key technology for the next generation of optical fibre communication systems which can improve reliability and data rate. However, the increment in the transmission distance and data rate will lead to increased dispersion. This paper proposes a model based on the Sub-Carrie...

In the healthcare environment, digital images are the most commonly shared information. It has become a vital resource in health care services that facilitates decision-making and treatment procedures. The medical image requires large volumes of storage and the storage scale continues to grow because of the advancement of medical image technology....

Ultra-wideband (UWB) with triple band notch characteristics was presented. WIMAX, WLAN and Meteorological Satellite (MSAT) frequency bandwidths were rejected in the UWB planar antenna composed from a single layer conductor element. Frequency bandwidths for WIMAX, WLAN and MSAT are allocated at 3.3~3.7, 5~6 and 7.4~8.4GHz, respectively. Conductor el...

Digital medical images have become a vital resource that supports decision-making and treatment procedures in healthcare facilities. The medical image consumes large sizes of memory, and the size keeps on growth due to the trend of medical image technology. The technology of telemedicine encourages the medical practitioner to share the medical imag...

A compact and low profile ultra wideband planar antenna comprises dual notched-band characteristics for WIMAX and WLAN are presented. UWB communication system is allocated between 3.1 and 10.6GHz, which coexisted with the WLAN and WIMAX frequency bandwidths at 3.3 to 3.6GHz, and 5 to 6GHz, repsectively. The coexistence between multiple frequency ba...

span>Nowadays, youths underuse their time, energy and creativity in a vast number of other activities, which lead to almost nothing in return. Thus, to fully utilise their huge potential of skills and abilities is by offering productive ways to attract young people in educational-related activities. This paper is presenting the community project on...

span>Fiber-based wireless system has become a promising solution as a cost- effective communication and it offers high capacity network with millimeter- wave (mm-wave) signal transmission. The system significantly offers superior possible bandwidths for both fiber and free-space applications. Hence, with the increased capacity as well as wireless m...

Optical burst mode receivers are indispensable components for Passive Optical Network (PON) and Ethernet Optical Access Network (E-OSAN). An optical burst mode receiver with transfer function G_n ( jω / ω ₀) = 1 - H_n ( jω / ω ₀) is proposed, of which better performance is anticipated than that of conventio...

The Internet of Things (IoT) has been integrated in various applications such as smart homes and smart cities. IoT in agriculture such as in monitoring indoor climatic conditions can help to improve the plant growth. This paper proposes a new approach in utilizing IoT technology as a remote monitoring system to control the indoor climatic condition...

Biometric systems such as signature verification are highly viable in order to identify individuals in organizations or in finance divisions. Advancement in classification of images using deep learning networks has opened an opportunity for this problem. In this study, the largest available handwritten signature dataset, namely, the GPDS Synthetic...

Two-slits in a UWB planar antenna in the means of suppressing the frequency bandwidths for 56 and 3.33.7GHz are studied. Frequency bandwidths for 56 and 3.33.7GHz are known as the Wireless Local Area Network (WLAN) and Worldwide Interoperable for Microwave Access (WIMAX), respectively. Both are coexisted with the UWB frequency bandwidth that is all...

Youth is known as an energetic people with a high potential, and eager to try something new. Therefore, it is such a loss if the abilities that they have been wasted and not fully utilised in a proper way. Project of the electrical wiring workshop is one of the great initiatives as it provides a knowledge base and develops skills in technology and...

This study was performed to investigate the best practise on using LED light for optimum growth of Brassica Chinensis and reduce turn around time at different kind of photoperiod study utilizing Wireless Sensor Network (WSN) technology as remote monitoring system. Growth performance of Brassica Chinensis under two different wavelengths (blue and re...

The use of fiber-based wireless system has offered a reliable and cost effective communication system. Such system greatly provides superior possible bandwidths for both fiber and free-space applications. For that reason, radio over fiber (RoF) technology is the best preference to deal with the improved capacity and mobility mainly at higher freque...

Allocating resources to WiMAX (Worldwide Interoperability for Microwave Access) users in a rectangular region is often known as burst mapping. The WiMAX standard only specifies a horizontal-strip-based mapping for uplink transmission; the downlink (DL) mapping is not specified. Previous studies have proposed various solutions for DLs, and yet, only...

This study was performed to investigate the best practise on using LED light to optimum growth to reduce turn around time using different kind of photoperiod study and using Wireless Sensor Network (WSN) technology as remote monitoring system has been conducted. Growth performance of Brassica Chinensis under two different wavelengths (blue and red)...

Plant growth optimization using LED light has been conducted to study the best method to reduce power consumption and obtain the optimum growth. In this study a system that able to produce variable intensity using microcontroller, solid state and dimmable LED light has been proposed. Two experiments were conducted with i) combined Red / Blue/White...

A large-signal model of InP/InGaAs single Heterojunction Bipolar Transistor (HBT) has been developed considering spectral performance and mixing. This model is based on Gummel Poon BJT model. HBT InP/InGaAs has been modeled and analyzed in this paper as an optoelectronic mixer (OEM). The HBT proposed was simulated by considering the wavelength of 1...

Bidirectional pumped dual-stage L-band EDFA utilizing a single power splitter and pump laser has been presented in this paper. A power splitter has been used to distribute the pump power bidirectionally to pump two EDFs with different length. An average gain of 18.6 dB with average NF of 8.6 dB has been attained when the signal is equal to 0 dBm ra...

Fiber tip lens technology has been employed to reduce coupling loss in fiber to Micro Fabry Perot Multiplexer (FP MUX) and fiber to Micro Fabry Perot Demultiplexer (FP DEMUX) connection. The convex type of fiber tip lens is proposed for FP MUX coupling connection while the concave type of fiber tip lens for FP DEMUX coupling connection. Finite Diff...

This paper explains the development of physical model Heterojunction Bipolar Transistor (HBT) and characterizes its performance as an optoelectronic mixer (OEM). HBT has been identified as a suitable device to be implemented in optoelectronic mixers by simultaneously photodetecting an intensity modulated laser beam at 1550nm and frequency translati...

This work involves in transmitting of intermediate frequency (IF) signal over fiber utilizing photonics frequency conversion, which, the main focus is the development of optical front-end receiver. The system uses photodiode and heterojunction bipolar transistor (HBT) to detect and up-convert the received IF modulated optical signal. The photodiode...