scholarly journals PERANCANGAN DAN IMPLEMENTASI SERVER VOICE OVER INTERNET PROTOKAL (VOIP) DENGAN TRIXBOX PADA WIRELESS LOCAL AREA NETWORK MENGGUNAKAN SMARTPHONE

Author(s):  
Muhammad Iqbal Nahwi ◽  
Edy Victor Haryanto ◽  
Budi Triandi

<p>ABSTRAK <br /> <br />Pada saat ini data telekomunikasi dalam kehidupan manusia sangatlah penting, baik untuk berhubungan antara manusia dalam hal pemenuhan kebutuhan dan informasi maupun hiburan. Sedangkan secara nyata, utuk biaya komunikasi di negara indonesia masih termasuk mahal. Pemanfaatan teknologi VoIP dalam komunikasi yang murah, aman dengan kualitas yang cukup baik sangat tepat untuk diterapkan di negara ini. Pada teknologi VoIP ini berkomunikasi melalui telepon tidak hanya bisa dilakukan dengan mengandalkan pesawat telepon konvensional maupun handphone, namun melalui jaringan internet juga bisa dilakukannya. Dalam penelitian ini metodologi yang digunakan adalah mengimplementasi sistem VoIP pada linux trixbox. Infrastruktur jaringan VoIP yang dirancang menggunakan protokol SIP(session initiation protokol) <br />sebagai protokol komunikasi, memanfaatkan free software linux Trixbox sebagai operating system, asteriks sebagai aplikasi server, dan di sisi client menggunakan softphone X-lite. aplikasi Keyyo VoIP digunakan untuk client pada smartphone.</p>

Compiler ◽  
2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Eko Teguh Prasetyo ◽  
Nurcahyani Dewi Retnowati

Smartphones with Android operating system is one proof that the very quickly progress of technology. Functions and services on Android smartphones is no longer just for communication but also for entertainment such as games. Application are made in this research is a game that applies artificial intelligence with pathfinding techniques and can be played in single player and two players using the wireless local area network as data traffic lane with distribution techniques client server and can be played on smartphones with Android operating system. Software used to create this game is the Unity 3D engine. Unity 3D is a game creator software that is very powerful at this time. By using Unity 3D can make a game in a variety of devices, one of which is on a smartphones with Android operating system. With the application of this game can be a means the entertainment for anybody.


2020 ◽  
Vol 7 (6) ◽  
pp. 1205
Author(s):  
Abdul Jalil

<p>Salah satu tantangan di era revolusi industri 4.0 adalah pengembangan sistem kontrol secara jarak jauh menggunakan koneksi jaringan nirkabel. Tujuan penelitian ini adalah membangun sistem kontrol perangkat elektronik jarak jauh dengan memanfaatkan jaringan <em>wireless tethering </em>pada <em>smartphone</em> menggunakan topologi <em>Wireless Local Area Network</em> (WLAN) dan <em>Robot Operating System</em> (ROS) sebagai perangkat lunak kontrol. Pemanfaatan <em>wireless tethering smartphone</em> untuk berbagi koneksi internet dapat dimanfaatkan untuk mengontrol perangkat elektronik yang terkoneksi ke Raspberry Pi. Koneksi jaringan <em>wireless tethering</em> memiliki arsitektur jaringan yang cukup sederhana jika dibandingkan dengan arsitektur pengontrolan jarak jauh lainnya, serta memiliki jarak jangkau koneksi yang cukup jauh dibandingkan dengan koneksi Bluetooth. Metodologi yang digunakan untuk mengontrol perangkat elektronik pada penelitian ini adalah menggunakan <em>Remote Access Control</em> (RAC) berbasis protokol SSH. Pemanfaatan <em>wireless tethering</em> dan aplikasi <em>mobile</em> SSH dapat digunakan untuk mengirim perintah ROS <em>message</em> dari <em>smartphone</em> ke Raspberry Pi untuk mengontrol pin GPIO Raspberry Pi agar aktif <em>high</em> atau aktif <em>low</em>. Pada saat ROS <em>message</em> mengirim perintah ke GPIO untuk aktif <em>high</em>, maka sistem akan memberikan instruksi kepada relay untuk menyalakan perangkat elektronik. Selanjutnya pada saat GPIO menerima perintah untuk aktif <em>low</em>, maka sistem akan memberikan instruksi kepada relay untuk mematikan perangkat elektronik. Hasil penelitian ini adalah <em>smartphone </em>android dapat digunakan untuk mengontrol perangkat elektronik seperti lampu, kipas angin, pemanas ruangan, dan <em>air conditioner</em> secara jarak jauh menggunakan jaringan WLAN berdasarkan perintah dari ROS <em>message</em>. Perangkat elektronik pada penelitian ini dapat di kontrol secara efektif pada jarak 20 meter di dalam ruangan dan 40 meter di area bebas hambatan.</p><p> </p><p class="Judul2"><strong><em>Abstract</em></strong></p><p class="Abstract"><em>One of the challenges in the Industrial Revolution 4.0 is the development of control systems by remotely using a wireless network connection. This study aims to build a control system for controlling the electronic devices by remotely with the utilization of wireless tethering network in the smartphone used Wireless Local Area Network (WLAN) topology and Robot Operating System (ROS) as software for the controller. Utilization of wireless tethering in the smartphone for share the internet connection can be used for control the electronic devices that connected to the Raspberry Pi. The connection of wireless tethering has a simple architecture when compared with the other architecture of the control system by remotely, it then has a long-range connection when compared to the Bluetooth connection. The methodology has used to manage the electronic devices in this study is used Remote Access Control (RAC) based on SSH protocol. The utilization of wireless tethering and mobile SSH can be used to sends ROS message command from smartphone to the Raspberry Pi to control the Raspberry Pi GPIO pin to active high or active low. When android smartphone send ROS message command to the Raspberry Pi to make the GPIO to active high, the system will instruct the relay to turn on the electronic devices. Then when GPIO accepts the instruction to active low, the system will instruct the relay to turn off the electronic devices. The result of this study is that android smartphone can be used to control the electronic devices such as a lamp, fan, heater, and air conditioner by remotely used WLAN network and command from ROS message. The electronic devices on this study can be controlled by effectively with the distance of 20 meters in the rooms and 40 meters at the outside area. </em></p><p class="Judul2"><strong><em><br /></em></strong></p>


Author(s):  
Chaithra. H. U ◽  
Vani H.R

Now a days in Wireless Local Area Networks (WLANs) used in different fields because its well-suited simulator and higher flexibility. The concept of WLAN  with  advanced 5th Generation technologies, related to a Internet-of-Thing (IOT). In this project, representing the Network Simulator (NS-2) used linked-level simulators for Wireless Local Area Networks and still utilized IEEE 802.11g/n/ac with advanced IEEE 802.11ah/af technology. Realization of the whole Wireless Local Area Networking linked-level simulators inspired by the recognized Vienna Long Term Evolution- simulators. As a outcome, this is achieved to link together that simulator to detailed performances of Wireless Local Area Networking with Long Term Evolution, operated in the similar RF bands. From the advanced 5th Generation support cellular networking, such explore is main because different coexistences scenario can arise linking wireless communicating system to the ISM and UHF bands.


Jurnal Teknik ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Heru Abrianto

Microstrip antenna which designed with dual feeding at 2.4 GHz and 5.8 GHz can meet WLAN (Wireless Local Area Network) application.Antenna fabrication use PCB FR4 double layer with thickness 1.6 mm and dielectric constant value 4.4. The length of patch antenna according to calculation 28.63 mm, but to get needed parameter length of patch should be optimized to 53 mm. After examination, this antenna has VSWR 1.212 at 2.42 GHz and 1.502 at 5.8 GHz, RL -13.94 dB at 2.42 GHz and -20.357 dB at 5.8 GHz, gain of antenna 6.16 dB at 2.42 GHz and 6.91 dB at 5.8 GHz, the radiation pattern is bidirectional. Keywords : microstrip antenna, wireless LAN, dual polarization, single feeding technique


2018 ◽  
Author(s):  
Kiramat

IEEE 802.11 is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communications. Maintained by the Institute of Electrical and Electronics Engineers (IEEE) LAN/MAN Standards Committee (IEEE 802). This document highlights the main features of IEEE 802.11n variant such as MIMO, frame aggregation and beamforming along with the problems in this variant and their solutions


2020 ◽  
Vol 1550 ◽  
pp. 032078
Author(s):  
Kaigang Fan ◽  
Xin Chen ◽  
Biao Zhao ◽  
Jiale Wang ◽  
Wenbin Cui ◽  
...  

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