Deployment and Evaluation of a Multi-Hop Wireless Network

Multi-hop wireless network uses two or more wireless hops to send information from source to destination. This paper presents the design and deployment of multi-hop wireless network testbed in Universiti Teknikal Malaysia Melaka (UTeM). While using the testbed to provide additional WiFi coverage around the cafeteria area in UTeM Industrial Campus, real-time measurements of various key parameters are carried out. This paper also provides some technical details of the testbed implementation as well as performance evaluation of network coverage, signal strength and connectivity. Performance of network throughput and effect of difference channel allocations are also presented

Voice and Video Transmission with Mobile IPv6

Mobile IPv6 (MIPv6) is a protocol that is proposed for the future of the mobile Internet access. The aim of MIPv6 is to provide seamless communication services to mobile nodes. The aim of this study is to investigate the effect of real time applications: voice and video transmission on MIPv6 network. In this paper the implementation of MIPv6 and fast handover MIPv6 (FMIPv6) is modeled and simulated using Network Simulator 2 (NS-2) software. The performance is analyzed for three different voice coding schemes and video based on H.263 format for both MIPv6 and FMIPv6

A Study Of Technology Acceptance Model (Tam) Towards Continuous Professional Development (Cpd)

The purpose of this project was to determine the technology acceptance using Technology Acceptance Model (TAM) towards Continuous Professional Development (CPD) system among University A academic staffs. The dependency of System Usage of CPD system as the dependent variable was cross check with four independent variables namely, Perceived Usefullness, Perceived Ease of Use, Management Support, and System Quality. A total Of fifty five correspondents replied the questionnaires and the data obtained were analyzed using Statistical package for the Social Science (SPSS) version 13. A conclusion was drawn that Perceived Usefullness, Perceived Ease of Use, and System Quality have positive relationships with System Usage of CPD while management support has negative relationships with CPD

Energy-efficient non-orthogonal multiple access for wireless communication system

Non-orthogonal multiple access (NOMA) has been recognized as a potential solution for enhancing the throughput of next-generation wireless communications. NOMA is a potential option for 5G networks due to its superiority in providing better spectrum efficiency (SE) compared to orthogonal multiple access (OMA). From the perspective of green communication, energy efficiency (EE) has become a new performance indicator. A systematic literature review is conducted to investigate the available energy efficient approach researchers have employed in NOMA. We identified 19 subcategories related to EE in NOMA out of 108 publications where 92 publications are from the IEEE website. To help the reader comprehend, a summary for each category is explained and elaborated in detail. From the literature review, it had been observed that NOMA can enhance the EE of wireless communication systems. At the end of this survey, future research particularly in machine learning algorithms such as reinforcement learning (RL) and deep reinforcement learning (DRL) for NOMA are also discussed

Intelligent Fire Detection And Alert System Using LabVIEW

Fire detection systems are designed to discover fires and allow the safe evacuation of occupants as well as protecting the safety of emergency response personnel. This paper describes the design and development of a fire detection and alert system. Temperature and flame sensors are used to indicate the occurrence of fire. This work consists of two parts, which are transmitter and receiver, both using ZigBee wireless technology. Arduino Uno is used as the microcontroller at the transmitter part to control the sensor nodes and give alert when over temperature and flame are detected. At the transmitter, the collected data from the sensors are transmitted by an XBee module operated as router node. At the receiver side, an XBee coordinator module which is attached to a computer using USB to serial communication captured the data for further processing. In addition, an interactive and user-friendly Graphical User Interface (GUI) is developed. LabVIEW software is used to design the GUI which displays and analyze the possibility of fire happening. The system can display the fire location and provides early warning to allow occupants to escape the building safely

Automatic traffic light controller for emergency vehicle using peripheral interface controller

Traffic lights play such important role in traffic management to control the traffic on the road. Situation at traffic light area is getting worse especially in the event of emergency cases. During traffic congestion, it is difficult for emergency vehicle to cross the road which involves many junctions. This situation leads to unsafe conditions which may cause accident. An Automatic Traffic Light Controller for Emergency Vehicle is designed and developed to help emergency vehicle crossing the road at traffic light junction during emergency situation. This project used Peripheral Interface Controller (PIC) to program a priority-based traffic light controller for emergency vehicle. During emergency cases, emergency vehicle like ambulance can trigger the traffic light signal to change from red to green in order to make clearance for its path automatically. Using Radio Frequency (RF) the traffic light operation will turn back to normal when the ambulance finishes crossing the road. Result showed the design is capable to response within the range of 55 meters. This project was successfully designed, implemented and tested

A Study Of Technology Acceptance Model (Tam) Towards Continuous Professional Development (Cpd)

The purpose of this project was to determine the technology acceptance using Technology Acceptance Model (TAM) towards Continuous Professional Development (CPD) system among University A academic staffs. The dependency of System Usage of CPD system as the dependent variable was cross check with four independent variables namely, Perceived Usefulness, Perceived Ease of Use, Management Support, and System Quality. A total of fifty five correspondents replied the questionnaires and the data obtained were analyzed using Statistical Package for the Social Quality have positive relationships with System Usage of CPD while management support has negative relationships with CPD

Deployment of Optimized Algorithm for MPEG-4 Data Over Wireless Multimedia Sensor Network

Typical Wireless Sensor Network (WSN) always deals with scalar data such as temperature. These types of data are suitable for low rate networking technology such as IEEE802.15.4. Transmitting a video for IEEE 802.15.4 raised other challenges for bandwidth limited sensor networks like WSN. The optimization method able to determine the optimal limit for quantization scale, group of picture and frame per second in order to suit the WSN environment. Changing these parameters affects the bandwidth requirement and video quality in term of Peak Signal to Noise Ratio (PSNR). This project aims to create an embedded code in TelG mote according to this concept. Results from experiment show improvements in packet delivery ratio of 28% for Akiyo qcif file, 27% for Foreman qcif file and 9% for Mobile qcif file. This work proved that the method has successfully increased the network performance

Development of a Power Generator System Using Thermal Waste from a Car

Wasted energy is created in our surroundings, including in a car’s operating system. This paper presents the development of a power generator system using thermal waste from a car. Energy cannot be created or destroyed but it can be transferred or changed into other forms. Therefore, the objectives of this project are to study a working principles of Peltier and DC-DC boost converter, to propose a new power generator system by reusing the wasted thermal and generate a stable electric to supply car devices. A power generator system is created to reuse the thermal wasted. The system uses a thermoelectric generator to convert heat energy from a car to electrical energy when a difference in temperature occurs. The conversion process is achieved by using a Peltier module. With the small amount of voltage produced from the process, a DC-DC boost converter is used to boost the voltage from the converted voltage. The result of this study, the desired output voltage produce 5 V and it useful to supply back for car’s devices or charge small electronic devices

Blind Source Separation On Biomedical Field By Using Nonnegative Matrix Factorization

The study of separating heart from lung sound has been investigated and researched for years. However, a novel approach based on nonnegative matrix factorization (NMF) as a skill of blind source separation (BSS) that utilized in biomedical field is fresh presented. Lung sound gives beneficial information regarding lung status through respiratory analysis. However, interrupt of heart sound is the obstacle from taking precise and exact information during respiratory analysis. Thus, separation heart sound from lung sound is a way to overcome this issue in order to determine the accuracy of respiratory analysis. This paper proposes factorizations approach that concern on the 2 dimensional which is combination of frequency domain and time domain or well known as NMF2D. The proposed method is developed under the divergence of Least Square Error and Kullback-Leibler and it demonstrates from a single channel source. In this paper, we will forms a multivariate data and it will proceed for dimension reduction by log frequency domain. Experimental tests and comparisons will be made via different divergence to verify and evaluate efficiency of the proposed method in term performance measurement