IJAIT (International Journal of Applied Information Technology)
International Journal of Applied Information Technology covers a broad range of research topics in information technology. The topics include, but are not limited to avionics, bio medical instrumentation, biometric, computer network design, cryptography, data compression, digital signal processing, embedded system, enterprise information system, green energy & computing, interactive programming, internet of things, IT management and governance, IT-business strategic alignment, mobile and ubiquitous computing, monitoring system and techniques, multimedia processing, network security, power electronics, remote monitoring and sensing device, robotics and avionics, signal processing circuits, smart cities and smart grids, telecommunication devices & methods, telecommunication fundamentals.
Articles
124 Documents
Simulation of Memory-Based 1024-Point Fast Fourier Transform for Broadband Wireless Access Technology on FPGA
Pramanta, Dinda;
Darlis, Denny;
Hidayat, Iswahyudi
IJAIT (International Journal of Applied Information Technology) Vol 01 No 01 (May 2017)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v1i02.872
The limited radio frequency spectrum that can be used for transmission leads to bandwidth and power efficiency being a key requirement in the development of wireless access technology from 3G to 5G today. Data communication technology also requires this as mentioned on high speed network standards such as DSL, WLAN and WMAN with its products ADSL, WiFi and Wimax. In the last few decades we have seen the evolution of the Orthogonal Frequency Division Multiplexing (OFDM) modulation technique used in the technologies mentioned earlier to this day. This technique is regarded as a standard technology for broadband wireless access technology. In hardware implementation, the most preferred by many researchers is the Field Programmable Gate Array chip, as it can be reconfigured. The OFDM technique can be easily implemented because it uses Fast Fourier Transform (FFT) algorithms that are coding and programming capable of reducing the computational time of Discrete Fourier Transform. This paper discusses the implementation of the memory-based 1024-point IFFT / FFT for BWA communications. The design is focused on synthesizing and implementing the system block FFT 1024-point radix-4 using Decimation in Frequency (DIF) method. Implementation for IFFT / FFT 1024-point resource usage slice number 1%, the number of slice flip-flop 1%, the number 4 LUT (Look Up Table) 1%, and the number of IOB 27%. of the FPGA are used.
Prototype Design of Remote Monitoring Software of Street Lighting System
Rosely, Ely
IJAIT (International Journal of Applied Information Technology) Vol 01 No 01 (May 2017)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v1i02.873
Street lightings are used in public area to support people activities throughout the night. Maintenance activities are needed to keep the availability of street lights. The advanced of technologies give ideas to create such tools to support the maintenance. Monitoring and controlling tools are proposed to maintain the availability of street lightings. This paper describes a design of web-based remote monitoring software of street lighting. The street lights should be equipped with GPRS module in transmitting data to the software. This research follows three steps: literature review, analysis, and design. The design tools such as BPMN, use case, ERD, and mockup are used to describe the system. The software can be used to monitor the street lights in the widespread area without having to come to the location.
Implementation of Management and Network Security Using Endian UTM Firewall
Muhammad Arifin, Fikri;
Andriana Mutiara, Giva;
Ismail, Ismail
IJAIT (International Journal of Applied Information Technology) Vol 01 No 01 (May 2017)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v1i02.874
Internet is a source of information which is widely used today. However, the mode of internet abused becomes more various and unavoidable. The internet abused can be done from external or internal networks. Unified Threat Management (UTM) is one of a good solution to secure the networks, because it has several security features such as firewall, proxy, Intrusion Prevention System (IPS) and several other security features in one package. Endian is an UTM distro which is an open source in large community. Besides having some security features, Endian also has some network management features such as DHCP, routing, and VPN. This research put Endian as the center of a network topology that connected to the internal network/LAN, DMZ Server, and Internet Network/WAN. The tests are conducted in the form of implementation of DHCP feature, content filtering, port restrictions on interzone, and the response of the IPS features that exist on the Endian while receiving the attack. The results showed that Endian UTM is quite well in maintaining the security of the networks.
Proposed IT Governance at Hospital Based on COBIT 5 Framework
Nugroho, Heru
IJAIT (International Journal of Applied Information Technology) Vol 01 No 01 (May 2017)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v1i02.875
Information Technology (IT) Governance in Hospitals describe how to create an IT governance process that increases the number of IT projects that support the strategy of a hospital and are completed on-time and on- budget. Good IT governance aligns decisions about the use of IT with desired behaviors and organizational objectives. The existence of good IT governance at Hospitals is expected to provide improvement on quality,functionality, and ease of use of the service. Enablers in COBIT 5 framework can be applie in practical situations and can be used to implement effective and efficient information governance and data management of IT governance for Hospital. In this paper, we propose IT governance in Hospital base on COBIT 5 framework. In the preparation of the proposed IT governance model, the enablers that exist in COBIT 5 framework is used as a determining factor. For performing the optimization of IT services to achieve the normal vision andmission uses base on a model of IT governance for a hospital.
Scrambling and De-Scrambling Implementation Using Linear Feedback Shift Register Method on FPGA
Lurina, Manda;
Hadiyoso, Sugondo;
Pudji Astuti, Rina
IJAIT (International Journal of Applied Information Technology) Vol 01 No 01 (May 2017)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v1i02.876
Digital broadband communications require a fast, functional and efficient system. In a digital communication system, a long sequence of bits '0' or '1' will inherits the loss of bit synchronization, and hence it can cause the false detection on the receiver. To avoid this, long sequence of bits will be randomized first so that long sequence of bits '0' or '1' can be removed. This randomization process is called scrambling and the circuit that works for the process is a scrambler. In the receiver there is a descrambler that serves to return the bits to their original information. This paper presents a design of scrambler and descrambler using a combination of Linear Feedback Shift Register (LFSR) with 15 registers, XOR logic gates, and Pseudo Random Binary Sequence (PRBS) generator structure with polynomial 1 + x14 + x15. One of the two main parts of LFSR is the shift register while the other is the feedback. In LFSR, the bits contained within the selected position in the shift register will be combined in a function and the result will be put back into this register's input bit. Feedback also makes the system more stable and no error occurrence. Then special tap is taken from a certain point in XOR and returned as a feedback register. The system is implemented on FPGA board Altera De0-Nano EP4CE22F17C6 Cyclone IV E. Resource memory required <1% of available memory. Bit rate that can be achieved with clock speed 50MHz is 335570.47 bps.
Decision Support Systems to Selection of Diet Type Using Fuzzy Sugeno and Naïve Bayes Method
Nurhasanah, Youllia Indrawaty;
Nana Hermana, Asep;
Arga Hutama, Mahesa
IJAIT (International Journal of Applied Information Technology) Vol 01 No 02 (November 2017)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v1i02.894
Sugeno Fuzzy algorithm is one of the algorithms contained on Fuzzy Inference System, that used to describe the condition between the two pieces of the decisions represented in the form of rules IF - THEN, where the output is constant or linear equations. While the Naive Bayes algorithm is an algorithm that uses data classification to a particular class based on the probability of each data class. Both of these algorithms can be implemented on a Decision Support System (DSS) for diet selection, using Fuzzy Sugeno as an additional determinant of energy and Naive Bayes method as decision maker. This is because the need for food intake and diet has become a problem for humans. To prevent excess intake of food it needs dietary adjustments or so-called diet. But in daily life, people sometimes hard to determine the type of diet that is suitable for them. So we need a system that can determine the type of diet that is suitable for a person. The data that used as a reference for decision support are age, daily caloric requirement, Body Mass Index (BMI), blood pressure, cholesterol, uric acid and blood sugar levels. Results of system testing showed from a sample of 30 data there are 26 appropriate data and 4 inappropriate data to determine the type of diet by the system with the success rate of 86.7%.
Home Lighting Control Based on Time Scheduling using Crontab
Suchendra, Devie Ryana;
Putri Suryani, Dewi;
Ikhsan Sani, Muhammad
IJAIT (International Journal of Applied Information Technology) Vol 02 No 01 (May 2018)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v2i01.924
Access control system in smart home concept is a support system that affects especially on controlling the electronic devices. Along with advances in technology, the conventional access control system was developed into an electronic-based access control system. A conventional access control system such as manual electric switches is now beginning to be developed with an electric switch that can be controlled wirelessly from the web. Raspberry pi 2 model B is one of the minicomputers which can be used in an automatic access control system. By using GPIO (General Purpose Input Output) on Raspberry Pi, can be created by a wireless access control system, safe and effective. The purpose of this study is designing a prototype relay control system wirelessly model that can be accessed through the web, the result indicates the possibility of relay control to be remote. Crontab scheduling functions on the controller's relay are used, then the device can function based on a predetermined schedule, it is very helpful to turn on and off electrical devices home remotely. The form of a username and password authentication will be used to protect the system from being accessed by anyone. In the final phase of research, the system is evaluated at day and night using Crontab function. Meanwhile, the response time of the relay is within 1-2 seconds range.
Enterprise Architecture Model for Vocational High School
Wikusna, Wawa
IJAIT (International Journal of Applied Information Technology) Vol 02 No 01 (May 2018)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v2i01.925
Vocational High School (SMK) is established to prepare productive and competitive labor. Each SMK has the vision to be the best school that provides the best service to the stakeholders in generating the smart and competitive Indonesian people. The achievement of the mission would be succeeded by building an integrated information system at school. Currently, many SMKs do not have an information system development plan that suits the core business aspect as the primary drivers, such as the organizational issues, human resources, environment, information technology, and application development aspects. Therefore, the design of enterprise architecture model is needed to generate data architecture, application architecture, technology architecture, and direction of the implementation plan for the school. In this study, the authors designed the enterprise architecture for SMK that can build the achievement of school goals. The method used is Enterprise Architecture Planning (EAP). With the design of enterprise architecture, the development of information systems in SMK would have an appropriate and effective direction for achieving the goals.
Application for Final Project Collaboration and Management in School of Applied Science, Telkom University
Hendriyanto, Robbi;
Adolf Telnoni, Patrick
IJAIT (International Journal of Applied Information Technology) Vol 02 No 02 (November 2018)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v2i02.955
The final project is the last stage of the students to complete the lecture. In accordance with academic rules at Telkom University allow final project work done in groups. This is to improve results more complex than the results of the final project obtained individually. But there are problems faced by students and lecturers who join the final project team, which is how to work on the final project together and monitoring the progress of each student in the team. This is due to differences in location and time in work. On the lecturer, side finds constraints that are how to be able to monitor the progress of each team member in detail. In this paper proposed a solution to overcome the problem is to apply for collaborative information technology support. The collaborative method used the Kanban's method, where each work will be divided into small parts that can be done together. Application for Final Project Collaboration and Management in School of Applied Science Telkom University was developed with Software Development Life Cycle (SDLC) Prototype method using PHP programming scripts and MySQL database. This application will manage the final project, especially in groups, facilitating the final project team to define all parts of the work of each team member who can collaborate with each other and communicate in each job. Lecturers as project supervisors can participate in collaborations and discussions in every work.
Augmented Reality as A Display Information Using Quick Sort
Putri, Astrid Novita;
Asmiatun, Siti
IJAIT (International Journal of Applied Information Technology) Vol 02 No 02 (November 2018)
Publisher : School of Applied Science, Telkom University
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DOI: 10.25124/ijait.v2i02.981
Information media of technology nowadays becomes a very easy means to convey information, and one of the recent technologies that still develop is augmented reality, which is used as information media. Augmented reality can integrate an image target and can be implemented easily. This technology utilizes an object tracing and uses detail feature from every camera object, after that it can be applied to all smartphones. By taking advantage of this technology, the augmented reality, and using logo marker and animation video, Faculty of Information and Communication Technology Semarang University can share information of its activities and can attract many people's attention to know further about activities held by this faculty. This research focuses on the augmented reality which will show the activities ranking, the activities held by the Faculty of Information and Communication Technology. The activities are shown by animation video using quick sort method to display them based on the most number of activities held by each study program. The result of this research finds out that study program of communication technology holding the first ranking. This study program holds the most often activities so the number of activities is the highest. The application can be displayed virtually using a smartphone and developed using Unity 3D and Vuforia.