1,720,975 research outputs found
ANALISIS QUALITY OF SERVICE APLIKASI VOICE OVER INTERNET PROTOCAL PADA JARINGAN MOBILE ADHOC NETWORK (Protocol Voice Over Application Quality Of Service Analysis On Adhoc Network Mobile Network)
Full text linkAbstract – The The development trend of computer networks is currently more likely to Wireless networks because the practicality of Wireless networks and their performance is almost the same as wired networks, one of the applications of Wireless networks is the exchange of voice information by using Voice over Internet Protocol (VoIP) technology. The long-term goal of this research is as part of the realization of next-generation network communication in Indonesia based on IP which has the urgency of developing communication media between the sender and receiver of voice information by minimizing the cable network component, namely replacing it with Mobile Adhoc Network (MANET). namely the ad-hoc communication model based on wireless networks. The type of research used is experimental research, namely laboratory-based research using the Network Development Life Cycle method. The Quality of Service factors tested were delay, jitter, throughput and packet loss. This research implements VoIP technology using the MANET network where transmission media is Wireless so that duration is an influential thing. Therefore, the duration of the experiment in this study was 180 seconds. Retrieval of test data using Wireshark Software. The results showed that VoIP communication using the MANET network with a defined duration standard resulted in a relatively good performance for all tests meeting the established standards so that it was feasible to be implemented on the MANET network. The overall test results using the data flow and testing without the data flow obtained results that are relatively the same so it can be concluded that the VoIP network that has been built is quite satisfactory.
Keywords: Ad-hoc, Manet, Voip, Qos
Abstrak – Trend perkembangan jaringan komputer saat ini lebih cenderung kepada jaringan Wireless karena kepraktisannya jaringan Wireless dan performansinya hampir sama dengan jaringan kabel, salah satu pengaplikasian jaringan Wireless adalah pertukaran informasi suara dengan menggunakan teknologi Voice over Internet Protocol (VoIP). Tujuan jangka panjang penelitian ini adalah sebagai bagian dari realisasi komunikasi jaringan masa depan (next generation network) di Indonesia yang berbasiskan IP yang memiliki urgensi pengembangan media komunikasi antara pengirim dan penerima informasi suara dengan meminimalis komponen jaringan kabel yaitu menggantinya dengan jaringan Mobile Adhoc Network (MANET) yakni model komunikasi ad-hoc berbasiskan wireless network. Jenis penelitian yang digunakan adalah penelitian experimental yaitu penelitian laboratory-based-research dengan menggunakan metode Network Devolopment Life Cycle. Adapun faktor-faktor Quality of Service yang diuji adalah delay, jitter, throughput dan packet loss. Penelitian ini, megimplementasikan Teknologi VoIP dengan menggunakan jaringan MANET dimana media transmisi adalah wireless sehingga durasi adalah hal yang berpengaruh. Oleh sebab itu, durasi percobaan dalam penelitian ini 180 second. Pengambilan data pengujian menggunakan Software Wireshark. Hasil penelitian menunjukkan komunikasi VoIP menggunakan jaringan MANET dengan standar durasi yang ditetapkan menghasilkan performansi yang tergolong baik untuk seluruh pengujian memenuhi standar yang ditetapkan sehingga layak untuk diimplementasikan pada jaringan MANET. Hasil pengujian secara keseluruhan pengujian menggunakan aliran data dan pengujian tanpa aliran data didapatkan hasil yang relatif sama dengan demikian dapat disimpulkan jaringan VoIP yang telah dibangun cukup memuaskan.
Kata kunci: Ad-hoc, Manet, Voip, Qo
Analyzing Node Density Impact on End-to-End Delay and Throughput in Mobile Ad hoc Network Video Conferencing Services
Full text linkVideo conferencing services have gained significant popularity in recent years, enabling real-time communication and collaboration among individuals and groups. However, the performance of video conferencing systems over MANETs poses challenges of topology fluctuations and node density. This research paper aims to present an analysis of end-to-end delay and throughput in video conferencing over MANETs. The main objective is to identify the impact of node density in MANETs on video conferencing user experience. To conduct the study, an experimental setup of Zoom cloud meeting service was designed, consisting of a simulated MANET environment and a video conferencing application. End-to-end delay and throughput were measured via Wireshark software based on interconnected node scenarios and different configurations at densities of 2 and 4 nodes. The collected data was analyzed using appropriate statistical techniques to identify trends, patterns. The end-to-end delay analysis results revealed the impact of fluctuating network density conditions, on the overall delay experienced during the video conferencing session increased by 27%. While throughput analysis revealed a 65% decrease in data transfer capacity caused by higher packet loss factor in MANET. The integrated analysis explores the relationship between end-to-end delay and throughput, providing insight into optimization strategies. These findings can guide the design and implementation of more efficient and reliable video conferencing systems in mobile ad-hoc environments, In the face of fluctuations in node density, these findings can encourage the development of QoS mechanisms specifically designed for MANETs. These mechanisms can prioritize video packets and allocate network resources effectively, ensuring better user experience and overcoming resource constraint
Analyzing Node Density Impact on End-to-End Delay and Throughput in Mobile Ad hoc Network Video Conferencing Services
Full text linkVideo conferencing services have gained significant popularity in recent years, enabling real-time communication and collaboration among individuals and groups. However, the performance of video conferencing systems over MANETs poses challenges of topology fluctuations and node density. This research paper aims to present an analysis of end-to-end delay and throughput in video conferencing over MANETs. The main objective is to identify the impact of node density in MANETs on video conferencing user experience. To conduct the study, an experimental setup of Zoom cloud meeting service was designed, consisting of a simulated MANET environment and a video conferencing application. End-to-end delay and throughput were measured via Wireshark software based on interconnected node scenarios and different configurations at densities of 2 and 4 nodes. The collected data was analyzed using appropriate statistical techniques to identify trends, patterns. The end-to-end delay analysis results revealed the impact of fluctuating network density conditions, on the overall delay experienced during the video conferencing session increased by 27%. While throughput analysis revealed a 65% decrease in data transfer capacity caused by higher packet loss factor in MANET. The integrated analysis explores the relationship between end-to-end delay and throughput, providing insight into optimization strategies. These findings can guide the design and implementation of more efficient and reliable video conferencing systems in mobile ad-hoc environments, In the face of fluctuations in node density, these findings can encourage the development of QoS mechanisms specifically designed for MANETs. These mechanisms can prioritize video packets and allocate network resources effectively, ensuring better user experience and overcoming resource constraint
Analysis of End-to-End Delay Video Conferencing Services on a Mobile Ad Hoc Network
Full text linkThe purpose of this study is to conduct a series of tests on each increase in the number of node-clients on the Mobile Ad hoc Network, while each node performs real-time video conferencing services from the internet cloud which can have a significant impact on the Quality of Service. The quality of service of the Mobile Ad hoc Network that supports video conferencing in real-time is evaluated based on End-to-End Delay. The model offered is in the form of the implementation of an ad hoc network on the zoom cloud meeting service. We assessed the transmission scenario of wireless video conferencing services while changing the number of user nodes. It carried the measurement out 5 times and calculated the average value obtained to be compared against the number of different nodes in this case the data obtained using Wireshark software. The results showed that the end-to-end delay value on the Mobile Ad hoc Network increased by 27% when the scalability of the Mobile Ad hoc network was increased from 2 nodes to 4 nodes. Our proposed model can be helpful in making decisions about aspects of the number of nodes in the Mobile Ad hoc network in real-time communicatio
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
IMPLEMENTASI WEB REPOSITORY MENGGUNAKAN CMS EPRINTS DI POLITEKNIK NEGERI BALIKPAPAN UNTUK MANAJEMEN EFEKTIF DOKUMEN AKADEMIK
Full text linkPerkembangan teknologi informasi telah mengubah paradigma dalam penyimpanan dan akses terhadap informasi akademik. Dalam pengembangan sistem penyimpanan, permasalahan efektivitas dan efisiensi penyimpanan tugas akhir mahasiswa, serta kehandalan dan ketersediaan akses informasi muncul. Penelitian ini bertujuan menghasilkan rancang bangun web repository menggunakan CMS Eprints sebagai tempat penyimpanan dokumen akademik yang efektif dan efisien. Metode pengembangan System Development Life Cycle dengan model waterfall diterapkan. Data diperoleh melalui angket dan wawancara, melibatkan dosen sebagai validator dan mahasiswa sebagai pengguna akhir. Pengujian mengacu pada standar kualitas ISO/IEC 25010 yang mencakup functional suitability, usability, performance efficiency, dan portability. Hasil pengujian menunjukkan functional suitability mencapai 100%, menunjukkan pemenuhan kebutuhan fungsional sesuai penilaian dosen validator. Usability mencapai 89,72%, mencerminkan kelayakan yang sangat baik menurut mahasiswa sebagai pengguna akhir. Pengujian performance efficiency, dengan rata-rata semua halaman sebesar 77% dan waktu respon 2.4 detik, mencerminkan kinerja yang diterima dengan baik. Pengujian portabilitas menggunakan berbagai aplikasi browser dan perangkat berbeda mendapatkan hasil 100%, menegaskan akses yang luas dan konsisten dari berbagai platform. Penelitian ini menegaskan bahwa implementasi web repository dapat memenuhi kebutuhan penyimpanan di lingkungan akademik, meningkatkan efisiensi dan efektivitas manajemen dokumen akademik, serta mendukung pengembangan pengetahuan dan keterbukaan informasi di kalangan mahasiswa dan dosen
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Design and Implementation of Smart Bench Integrated Solar Cell for Public Space Electricity Saving
Full text linkThe purpose of this research is to design a multifunctional garden bench integrated with solar panels. The bench product is created by utilizing sunlight as a source of electrical energy for the object features of the bench product. The implementation method for producing innovative bench products uses a research and development approach, including concept, design, collection of materials, assembly, and testing. The bench was tested to supply electricity to the LED lights and USB ports. Furthermore, analyzing statistical data the average value of; current, voltage, and power generated by the intelligent bench object. The study results present the primary resources needed for the design and implementation of intelligent bench products. Experiments show that a load of LED lights and USB station chargers depends on the percentage of battery batteries supplied from solar cells. The innovative bench is designed from hollow steel to support product construction efficiency and electronic effectiveness. In this way, we achieved our goal of designing and implementing a portable garden bench that could function in all open areas
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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