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Jurnal INFOTEL
Jurnal Infotel merupakan media publikasi ilmiah dalam rangka untuk meningkatkan kualitas dan kuantitas penelitian civitas akademika baik dari lingkungan Sekolah Tinggi Teknologi Telematika Telkom Purwokerto (ST3 Telkom) ataupun dari luar ST3 Telkom dibidang Informatika, Telekomunikasi dan Elektronika
Articles
462
Articles
Comparative Analysis of Erbium Doped Fiber Amplifier (EDFA) and Raman Optical Amplifier (ROA) in Nonlinear-CWDM System

Zulherman, Dodi, Utami, Sri, Fahmi, Fahmi

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

The massive demands for high-rate application drove the telecommunication service to use large bandwidth capacity. The Coarse Wavelength Division Multiplexing (CWDM), a common use in Metro-WDM, can be a solution to provide large bandwidth in optical communications. In a communications system, there are attenuation and nonlinear effect decreasing the system performance. In order to overcome the limitation imposed by electrical regeneration to maintain system performance, a means of optical amplification was sought. In this paper presents the comparison of two competing technologies emerged: Erbium Doped Fiber Amplifier (EDFA) and Raman Optical Amplifier (ROA) to overcome the attenuation in the nonlinear system. We designed the CWDM system using 8 channels with 20 nm channel spacing and 60 km length. The result was conducted by varying the CW Laser power using -8, -6, -4, -2, 0, 2, 4, and 6 dBm. Based on the result of the research, raman amplification can maintain the BER and the Q-factor of the CWDM system better than EDFA. In addition, the received power in raman amplification larger than that received in EDFA. In conclusion,a CWDM system using ROA amplifier has better performance for the system than using EDFA amplifier.

Risk Factor Assessment of Software Usability Using Fuzzy-Analytic Hierarchy Process Method

Kartika, Afriyanti Dwi, Umaroh, Sofia

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

Software adds significant value to a wide range of products and services. Thus, in the process of software development, maintaining the quality of the software is an important aspect that the developer must do. In several software quality models, usability is stated as one of significant factor that gives impact to software performance. The existence of problems in usability lead to less useful of the software. This research was conducted to assess software usability risk factors which derived from the attributes and sub-attributes of usability, that affecting the quality of the software negatively. The importance of risk factors assessed by using fuzzy-Analytic Hierarchy Process. This risk assessment on software usability made it possible to process the evaluation of the respondents defined by linguistic format, in which information can be processed from insufficient data, subjective, inaccurate or vague. As result, this assessment showed dominant factors which were considered as the source of the usability software risk.

Performance Analysis and Automatic Prototype Aquaponic of System Design Based on Internet of Things (IoT) using MQTT Protocol

Ratnasih, Ratnasih, Perdana, Doan, Bisono, Yoseph Gustommy

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

The Aquaponic is a farming system which need of attention because their system will mutually influence each other. Then using IoT technologies, can be made aquaponic that can automatically control and monitoring the aquaponic. The prototype using nodeMCU as a microcontroller, and for communication, the system using MQTT protocol and android application as a user interface. The purpose of this research is to provide convenience for aquaponic user to be able to control remotely. In addition, this research aims is to analysis the QoS performance of the prototype. This research uses 2 scenario testing, there is with changing the distance between sensor nodes and access point, and testing the system in a normal state. Based on the results of the testing that has been done, the farther the distance range of the sensors node with access point then declining system performance. But in the normal state test,  the median value of the mean delay  was 0.10512s and the median value average throughput is 566 Bytes/s. In addition the median value  also obtained the mean availibity and realibity system that is 98.258% and 98.204%. Refers to the standard TIPHON (DTR/TIPHON-05001), the QoS performance of this system include excellent category.

Improved Load Balancing on Software Defined Network-based Equal Cost Multipath Routing in Data Center Network

Dewanto, Ramadhika, Munadi, Rendy, Negara, Ridha Muldina

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

Equal Cost Multipath Routing (ECMP) is a routing application where all available paths between two nodes is utilized by statically mapping each path to possible traffics between source and destination hosts in a network. This configuration can lead to congestion if there are two or more traffics being transmitted into paths with overlapping links, despite the availability of less busy paths. Software Defined Networking (SDN) has the ability to increase the dynamicity of ECMP by allowing controller to monitor available bandwidths of all links in the network in real-time. The measured bandwidth is then implemented as the basis of the calculation to determine which path a traffic will take.  In this research, a SDN-based ECMP application that can prevent network congestion is made by measuring available bandwidth of each available paths beforehand, thus making different traffics transmitted on non-overlapped paths as much as possible. The proposed scheme increased the throughput by 14.21% and decreased the delay by 99% in comparison to standard ECMP when congestion occurs and has 75.2% lower load standard deviation in comparison to round robin load balancer.

Perancangan dan Analisis Prototype Sistem Pemantauan Sampah Berbasis Internet of Things (IoT) Menggunakan Protokol MQTT

Zulfikri, Achmad Auliyaa, Perdana, Doan, Bisono, Gustommy

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

On this research,Internet of Things (IoT) as an advanced technology is used to monitor the height of trash from a trash can in order to give notification whether the height of trash is already reach the maximum limit or not yet.To support those needs,we used NodeMCU as microcontroller,ultrasonic sensor,MQTT as IoT protocol,and also Android application to show the data.After we did the system performance test,we got the biggest result of end-to-end delay which is 2.06875 seconds when the packet delivery is set to 1000 ms with 3 active nodes and the smallest result which is 0.26055 seconds when the packet delivery is set to 100 ms with 1 active mode.The biggest result of throughput is 597.17 Bytes/s when the packet delivery is set to 100 ms with 1 active mode and the smallest result is 75.86 Bytes/s when the packet delivery is set to 1000 ms with 3 active nodes.The biggest result of availability and reliability is 99.905% when the packet delivery is set to 1000 ms and the smallest result is 99.833% when the packet delivery is set to 100 ms.

Performance Analysis of Reactive Routing Protocol on VANET with Wormhole Attack Schemeaper

Ratnasih, Ratnasih, Perdana, Doan, Wulandari, Triani, Pratama, M. Irfan

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

Entering the information era, the current needs of global community is increasing very rapidly. Vehicular Ad-hoc Networks (VANET) has drawn significant attentions from both industry and academia as an important developmnt of vehicular communication technology. VANET is one of open network and communication media without security mechanism. There are many kinds of security threat that can interrupt data communication in VANET. Wormhole attacks as one of security threat can be a good challenge in VANET security research.  In this paper, we evaluate performance of reactive routing protocol on VANET with wormhole attack scheme. The project is simulated using NS-3 in Ubuntu platform with performance analysis of routing protocol by changing of initial power and node density. We conclude that throughput values are increasing along with the changing of initial power while the delay values are decreasing rapidly. By the changing of node density, the highest delay value is 0.122 ns on 10 nodes condition and 0.215 Mbps for throughput value on 8 nodes condition.

Trajectory Tracking Control System Design For Autonomous Two-Wheeled Robot

Uddin, Nur

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

A trajectory tracking control system design of an autonomous two-wheeled robot (TWR) is presented. The control system objective is to steer the TWR move on a desired trajectory in planar space. The TWR has two kinds of movement: moving forward/backward and turning to the right/left, where the movements are represented by a non-linear kinematics equation. Simplifying the trajectory tracking control system design, the non-linear kinematics equation is approximated by a linear kinematics equation. Linear quadratics regulator (LQR) method is applied to design the trajectory tracking control system. The designed control system is evaluated through computer simulation. Simulation results show that the designed control system is able to make the TWR track a desired trajectory that located 1.4 meter away from the TWR initial position within 3 seconds.

High Availability Performance on OpenDayLight SDN Controller Platform (OSCP) Clustering and OpenDayLight with Heartbeat-Distributed Replicated Block Device (DRBD)

Nugraha, Andre Rizki Dewo, Negara, Ridha Muldina, Sanjoyo, Danu Dwi

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

In this day people are asking for a reliable network when technology at its limit. Software-Defined Network (SDN) is an answer to that problem of network development where all the control over the network becomes centralized. However, all services controlled by a centralized controller have a big disadvantage if the controller dies. The High Availability (HA) is the solution. HA controller is divided into master and slave, when master controller is down then slave controller will respond to replace the function of master controller. In this research the system will be made by using two methods namely OpenDayLight SDN Controller Platform (OSCP) clustering and Heartbeat-DRBD (Distributed Replicated Block Device). OSCP clustering is a feature on OpenDayLight controller that is ready to be used and only need to be configured, with OSCP the main and backup controller clustering will be on connected cluster. Heartbeat-DRBD is an application commonly used to create High Availability systems on a server, but in this study will be used for the controller, Heartbeat will monitoring the main controller and if indicated to be down will move the resources to the backup controller with the DRBD application. From the simulation result shows that OSCP Clustering Failover and Failback average Time is 17 seconds while Heartbeat-DRBD is 23-45 seconds depends on how many switch and host are.While QoS parameters on both method have simillar value.it can be concluded that the High Availability system with OSCP Clustering method is more stable and good rather than Heartbeat-DRBD method to apply in a network.

An Interactive Book With Augmented Reality For Learning The Cirebon Mask Dance

Yulianto, Dinan, Hartanto, Rudy, Santosa, Paulus Insap

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

Today, augmented reality has an important role in human activity, especially in the field of education. The increasing capabilities of mobile devices also contribute to augmented reality to reduce real world distance with the virtual world. This paper will discuss the design and testing of iBook as media of learning the Cirebon mask dance art. iBook is a form of optimisation of traditional books based on augmented reality. The iBook designs will interact with virtual objects through direct touch on the application interface (pinch and swipe). The technical testing of iBook is a test of markerless reading ability and audio response time test. The markerless detection test resulted in minimum response time less than 1 second, minimum distance of 64 cm and a maximum distance of 3 cm, a minimum angle of 23° and a maximum angle of 90°. Tracking test obtained a minimum distance of 3 cm and a maximum distance of 71 cm, a minimum angle of 90° and a maximum angle of 16°. Any markerless detection and tracking can be done in unobstructured condition of no more than 50%. The testing of audio content obtained activation response time less than 1 second with original duration equal to active duration.

The Geographic Information System Development for Selection of Green Open Space in Urban Densely Area

Agus, Fahrul, Ramadiani, Ramadiani, Azhari, Muhamad, AW, Sawung, Silalahi, Wardana, Armanda, Amelia, Kusnandar, Kusnandar

JURNAL INFOTEL Vol 10 No 3 (2018): August 2018
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

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Abstract

Utilization of integrated Decision Support System and GIS as one of the intelligent computerized system can be used to help make decisions quickly, accurately, and consistently. This research aims to apply Simple Additive Weighting (SAW) and built application system with ArcGIS platform to determination of urban Green Open Space (GOS) location in densely populated area. The study was conducted in Samarinda City, used secondary data and obtained from the Sanitation and Gardening Agency. Data were collected by survey and interview with experts and using Waterfall Framework for software development method. The research has resulted the priority sequence of GOS location of densely area of Samarinda City. The first priority location is the location under Juanda Flyover Bridge. Research has also developed Web based GIS software application of GOS location determination using SAW technique.

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