Managing student's attendance during laboratories session is tedious due to the large number of students, and this problem is worsen if laboratories session is conducted in parallel due to the lack of resources and time. Hence, this paper is aimed to overcome this problem by using RFID-ARDUINO approach in web-based laboratories attendance system. The propose system will assist the lab instructor to record and manage the student attendance automatically. In addition, the system also provides an evaluation section for lab instructor to key-in and manage the student's experiment marks. The system is divided into two parts, which are the web-based development and system integration with the RFID-ARDUINO technology. An Arduino Uno microcontroller board is use as the hardware platform. Meanwhile, the web design is developed in Adobe Dreamweaver and Adobe Fireworks and deploy in XAMPP application server. Visual Basic scripting is use to integrate between hardware and SQL database. Upon testing, Web-based Laboratory Attendance System (LAS) is successfully facilitated the students' attendance and laboratory management on evaluation of student performance for particular experiment.

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In heterogeneous network, maintaining seamless connectivity needs excessive efforts from various aspects such as network availability and mobile node reliability. Presently, a vertical handover management is a practical approach in facilitating the service continuity for mobile users. Many researches have been conducted in this area by considering performance improvement in delay, latency, and overhead. Preserving the Quality of Services (QoS) based on user mobility and pattern movement during handover decision has become an important aspect in vertical handover management. This paper presents the conceptual mobility model of vertical handover decision in heterogeneous network. Hence, several researches in vertical handover decision management has been reviewed regarding the issues on the vertical handover decision algorithms such as RSS Based Algorithm, MADM Based Algorithm and Intelligence Based Algorithm.  This paper highlights the current decision algorithms that integrate the traditional methods with intelligence algorithm for better optimization. In decision parameters, the user mobility pattern can be importance in terms of direction randomness and mobility speed.  Hence, a conceptual mobility-awareness model for vertical handover are been proposed in targeting some improvement of handover performance.

This paper presents the implementation of Phase Shift Keying (PSK) baseband modem on Digital Signal Processor (DSP). Different level of PSK modulation schemes were used which were 16-psk, 32-psk, 64-psk, 128-psk and 256psk. MATLAB simulink software was used in this project to simulate the system. The system model consisted of modulator, demodulator, noise channel and channel coding. Noise channel that was used in the system is Addittive White Gaussian Noise (AWGN). After the simulation, a Matlab file was created to get the Bit Error Rate (BER) graph for all 6 level of modulation scheme. Then, the system was implemented on the DSP TMS320C6713 board. From the simulation, the result that was obtained was constellation point for all M-ary PSK before and after adding channel coding and AWGN. The BER graph that was obtained also follows the theory.

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