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All Journal Jurnal Nasional Teknik Elektro dan Teknologi Informasi Proceeding Applied Business and Engineering Conference
Emansa Hasri Putra
Politeknik Caltex Riau
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Cross-Layer Design pada Wireless Multimedia Sensor Network berbasis EDCA dan H.264/SVC Emansa Hasri Putra
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 4 No 2: Mei 2015
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

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Abstract

A new approach in transmission of multimedia application over Wireless Sensor Network (WSN) has developed new technologie, Wireless Multimedia Sensor Network (WMSN). However, multimedia data including audio, video, images and scalar data requires different Quality of Service based on the application. This research proposes a new approach based on cross-layer design concept using H.264/SVC and IEEE 802.11e/EDCA standard to optimize the existing protocols. The result shows that video applications can obtain bandwidth and packets end-to-end delay based on Quality of Service requirement during the transmission process over WMSN. Hence, the cross-layer design concept succeeded in optimizing the video transmission over WMSN.
Prototipe Sistem Pemantauan Kondisi Cuaca Pekanbaru Aulia Ikrar Muhammad; Emansa Hasri Putra
ABEC Indonesia Vol. 9 (2021): 9th Applied Business and Engineering Conference
Publisher : Politeknik Caltex Riau

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The occurrence of differences in weather conditions (rain, temperature, humidity, wind direction and speed) in the city of Pekanbaru from one place to another even though it is still in one sub-district. The difference in rainfall can disturb the community. Many people do not know the information about the weather conditions. The application of technology in the form of sensors as a monitoring system for weather conditions can be used to assist in collecting information data for the local community. The design is made using Arduino which is equipped with an anemometer sensor that functions to measure wind speed, wind direction sensor, DHT11 temperature sensor to detect air temperature and humidity. The data that has been read by the sensor will be sent to the server which is displayed on the web. The data generated in the form of wind speed, wind direction, temperature, and humidity. The test results obtained that the tool can monitor weather conditions with a temperature range of 25oC to 33oC, the resulting temperature accuracy is 95.96%. The humidity accuracy value is 95.91%. The wind speed value generated by nature is 0.00 M/s when the wind conditions do not blow up to 3.05 M/s when the wind conditions blow, the accuracy value obtained from the wind speed sensor is 78.07%. The wind direction shown is northwest, west, southeast, and south. The wind direction when doing the test often shows the southeast cardinal direction. Monitoring is carried out via the internet via a web that is connected to the internet network. With this system, information on weather conditions can be known to everyone through the website in real time or directly to find out the current weather info Keywords: Monitoring Weather, Wind Speed ​​and Direction, Arduino, Website
PERANCANGAN ANTENA MIKROSTRIP ARRAY PADA FREKUENSI 915 MHz UNTUK APLIKASI LONG RANGE (LoRa) Lundu Holong Panjaitan; Emansa Hasri Putra
ABEC Indonesia Vol. 9 (2021): 9th Applied Business and Engineering Conference
Publisher : Politeknik Caltex Riau

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Abstract

The development of information technology is currently growing rapidly, especially in wireless communication for LoRa radios. So that various kinds of antennas have also been developed and one of the antennas used is the microstrip antenna. In this research, a successful microstrip array antenna at a frequency of 915 MHz can be applied to LoRa technology. Microstrip antennas have many advantages but also disadvantages, such as low gain. One way to overcome the low gain is to design a microstrip antenna with a 1x2 array method. This antenna uses a double layer PCB with FR-4 as a substrate. After the simulation and fabrication processes were carried out, the results were consecutive, namely the return loss value of -33.16 dB, VSWR 1.045, gain of 3,860 dBi. The fabrication results are the return loss value of -14.97 dB, VSWR 1.434, and a gain of 9.79 dBi. The simulated and measured radiation patterns are bidirectional. Keywords: Microstrip Antenna, array, bidirectional, LoRa.
Co-Authors Aulia Ikrar Muhammad Lundu Holong Panjaitan