scholarly journals QoS-Ledger: Smart Contracts and Metaheuristic for Secure Quality-of-Service and Cost-Efficient Scheduling of Medical-Data Processing

Electronics ◽  
2021 ◽  
Vol 10 (24) ◽  
pp. 3083
Author(s):  
Abdullah Ayub Khan ◽  
Zaffar Ahmed Shaikh ◽  
Laura Baitenova ◽  
Lyailya Mutaliyeva ◽  
Nikita Moiseev ◽  
...  

Quality-of-service (QoS) is the term used to evaluate the overall performance of a service. In healthcare applications, efficient computation of QoS is one of the mandatory requirements during the processing of medical records through smart measurement methods. Medical services often involve the transmission of demanding information. Thus, there are stringent requirements for secure, intelligent, public-network quality-of-service. This paper contributes to three different aspects. First, we propose a novel metaheuristic approach for medical cost-efficient task schedules, where an intelligent scheduler manages the tasks, such as the rate of service schedule, and lists items utilized by users during the data processing and computation through the fog node. Second, the QoS efficient-computation algorithm, which effectively monitors performance according to the indicator (parameter) with the analysis mechanism of quality-of-experience (QoE), has been developed. Third, a framework of blockchain-distributed technology-enabled QoS (QoS-ledger) computation in healthcare applications is proposed in a permissionless public peer-to-peer (P2P) network, which stores medical processed information in a distributed ledger. We have designed and deployed smart contracts for secure medical-data transmission and processing in serverless peering networks and handled overall node-protected interactions and preserved logs in a blockchain distributed ledger. The simulation result shows that QoS is computed on the blockchain public network with transmission power = average of −10 to −17 dBm, jitter = 34 ms, delay = average of 87 to 95 ms, throughput = 185 bytes, duty cycle = 8%, route of delivery and response back variable. Thus, the proposed QoS-ledger is a potential candidate for the computation of quality-of-service that is not limited to e-healthcare distributed applications.

2019 ◽  
Vol 14 (2) ◽  
pp. 63
Author(s):  
Nia Budi Puspitasari ◽  
Susatyo Nugroho Widyo Pramono ◽  
Yoana Ellen Pertiwi

Persaingan yang ketat antara perusahaan dalam pelayanan bus antar kota antar provinsi membutuhkan perbaikan pelayanan kualitas untuk mempertahankan pelanggan. Adanya ketidakpuasan pelanggan terhadap fasilitas dan layanan yang diberikan oleh PO Rosalia Indah menjadi suatu permasalahan yang harus diperbaiki sehingga dengan menerapkan metode ini dapat meningkatkan kualitas pelayanan PO Rosalia Indah dan loyalitas penumpang. Penelitian ini bertujuan untuk menganalisa kepuasan pelanggan PO Rosalia Indah dengan mempertimbangkan keberadaan pesaingnya yaitu PO Pahala Kencana dan memberikan rekomendasi perbaikan terhadap atribut fasilitas yang menjadi prioritas perbaikan. Penelitian ini menggunakan metode Importance Performance Competitor Analysis (IPCA). Pengambilan data dilakukan terhadap dua kelompok responden yaitu responden PO Rosalia Indah dan responden PO Pahala Kencana. Penelitian ini mengukur tingkat pelayanan kualitas berdasarkan 3 dimensi yaitu kendaraan (15 butir pernyataan), sopir dan kru (8 butir pernyataan) dan manajemen (13 butir pernyataan). Berdasarkan hasil pengolahan data dengan IPCA didapatkan bahwa terdapat 21 butir pernyataan yang masuk dalam kuadran Urgent Action dan memerlukan perbaikan. Rekomendasi perbaikan dilakukan dengan metode Numerical Group Technique (NGT) yang berasal dari lima ahli yang mengerti dalam bidang transportasi bus.Abstract[The Customer Satisfaction of PO Rosalia Indah using Importance Performance Competitor Analysis (IPCA)] The intense competition between companies in intercity bus services between provinces requires the improvement of quality services to retain customers. The existence of customer dissatisfaction with the facilities and services provided by PO Rosalia Indah becomes a problem that must be improved so that by applying this method can improve the quality of service Rosalia Indah PO and passenger loyalty. This research aims to analyze customer satisfaction of PO Rosalia Indah by considering the existence of its competitor that is PO Pahala Kencana and give recommendation improvement to the facility attribute which become the priority of improving. This research uses Importance Performance Competitor Analysis (IPCA) method. The data were collected from two groups of respondents namely PO Rosalia Indah and respondent’s PO Pahala Kencana. This study measures the level of quality service based on 3 dimensions of the vehicle (15 points statement), driver and crew (8 points statement) and management (13 points statement). Based on the results of data processing with IPCA found that there are 21 items of statements that enter the Urgent Action quadrant and require improvement. The improvement recommendation was made by Numerical Group Technique (NGT) method which is derived from five experts who understand in the bus transportation field.Keywords: customer satisfaction; numerical group technique; IPCA


2018 ◽  
Vol 1 (2) ◽  
pp. 166
Author(s):  
Adi Widarma ◽  
Hana Kumala

Abstrack - Salary is a wage given to employees who have worked in a particular company or agency. Every employee who works in a company has the right to get a salary in accordance with the rules or conditions in the company. The issue of giving a salary is important because it has a huge influence on the morale of its employees. At PT. PP London Sumatra Indonesia Tbk, Gunung Malayu Estate, the application used for processing employee payroll data is the Microsoft Office Excel 2010 application. Then an analysis of employee salary data processing systems at PT. PP. London Sumatra Indonesia Tbk by designing programming applications using NetBeans IDE 7.2.1 with the MySQl database. So that with the application of employee payroll data processing, it will improve the quality of service to its employees, because it will save time in data processing, and save time in payroll reports.  Keywords - applications, salary systems, netbeans, mysql


2019 ◽  
Vol 32 (3) ◽  
pp. 723-734 ◽  
Author(s):  
Ali Hassan Sodhro ◽  
Abdul Sattar Malokani ◽  
Gul Hassan Sodhro ◽  
Muhammad Muzammal ◽  
Luo Zongwei

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Arief Syah Safrianto

This research aims to get factual and conceptual information about "analysis of the influence of the quality of service to the satisfaction of the customer's Savings Bank OCBC NISP 360 Marks". The technique used is the technique of observation or survey using a questionnaire (questionnaire) towards Clients Savings Sign 360. A list created by using the Likert scale is structured. Samples taken as many as 100 respondents. The results of the survey and the results of the data processing is done with SPSS. 14.0 obtained research results of simultaneous service quality (tangible, reliability, responsiveness, assurance and emphaty) have a relatively strong contribution towards the satisfaction of the customer. Partially variable reliability has a pretty strong contribution towards the satisfaction of the customer with a positive prediction and happens significantly. The variable responsiveness has pretty strong contribution towards customer's satisfaction with the positive prediction and occurs on a si gnifican.


2019 ◽  
Vol 10 (2) ◽  
Author(s):  
Dahnial Dahnial

<p align="center"><strong>ABSTRACT</strong></p><p><em>The internet as a data transmission backbone has security threats in sending data. To overcome the security problem of every data communication that is done through a public network (public network), then a connection is needed that requires a connection between workstations running privately, so that only workstations that have access can connect, by using a virtual private network or VPN. The advantage of a VPN is that data sent over an encrypted VPN is quite safe and the secret is maintained even through the internet network because the data sent will go through the tunnel. Tunneling itself is a method for transferring data from one network to another by using a veiled internet network. Two protocols can be chosen in a VPN, namely Point to Point Tunneling Protocol (PPTP) and Layer 2 Tunneling Protocol (L2TP). However, the performance of each of these protocols is unknown yet. To find out the performance of the two protocols we need a test with a simulation method. Using a Mikrotik router and Wireshark application with Quality of Service (QoS) parameters consisting of Packet Loss, Delay, and Throughput on 2 clients connected to the mikrotik router and each client uses a different protocol. All clients will stream videos simultaneously to get a data packet capture. The test results will be grouped into four categories, namely bad, moderate, good and very good. It is expected that data will be able to show the quality of service of both protocols. so that it can be used as a reference in the selection of VPN protocol to be used.</em></p><p><strong><em>Keywords: </em></strong><em>Quality of Service, PPTP, L2TP</em></p><p align="center"><strong>ABSTRAK</strong></p><p><em>Internet sebagai backbone pengiriman data memiliki ancaman keamanan dalam pengiriman data. Untuk mengatasi masalah keamanan setiap komunikasi data yang dilakukan melalui jaringan publik (public network) maka diperlukan suatu mekanisme yang memungkinkan koneksi antar workstation berjalan secara private, sehingga hanya workstation yang memiliki akses yang dapat saling terhubung, dengan cara memanfaatkan virtual private network atau VPN.</em> <em>Keuntungan VPN adalah data yang dikirimkan melalui VPN terenkripsi sehingga cukup aman dan rahasianya tetap terjaga meskipun melalui jaringan internet, karena data yang dikirim akan melalui tunnel.</em> <em>Tunneling sendiri merupakan metode untuk transfer data dari suatu jaringan ke jaringan lain dengan memanfaatkan jaringan internet secara terselubung. Terdapat dua protokol yang dapat dipilih dalam VPN yaitu Point to Point Tunneling Protocol (PPTP) dan Layer 2 Tunneling Protocol (L2TP). Akan tetapi belum diketahui performa dari masing – masing protokol tersebut. Untuk mengetahui kinerja dari kedua protokol tersebut diperlukan sebuah pengujian dengan metode simulasi. Menggunakan router mikrotik dan aplikasi Wireshark dengan parameter Quality of Service (QoS) yang terdiri dari Packet Loss, Delay, dan Throughtput pada 2 client yang terhubung ke router mikrotik dan setiap client akan menggunakan protokol yang berbeda. Semua client akan melakukan video streaming secara bersamaan untuk mendapatkan capture paket data. Hasil pengujian akan dikelompokkan menjadi empat kategori, yaitu kategori buruk, sedang, bagus dan sangat bagus. Diharapkan akan dihasilkan sebuah data yang dapat menunjukkan kualitas dari layanan kedua protokol tersebut. sehingga dapat dijadikan acuan dalam pemilihan protokol vpn yang akan digunakan.</em></p><strong><em>Kata kunci:</em></strong><em> Quality of Service, PPTP, L2TP</em>


2018 ◽  
Author(s):  
STIM Sukma

The study entitled the influence of service quality to the satisfaction of tourists in Maimoon Palace to determine whether the quality of the influence of quality of service to the satisfaction of tourists at Maimoon Palace. The population of this study are tourists who visit Maimoon Palace. Sampling method using random sampling counted 103 respondents. This research data is analyzed using Partial Test (t test) and coefficient of determination (R ²) while data processing using SSPS 20. Where previously been through validity test and reability of research instrument. The results showed that based on the test partially indicated that the quality of service has a positive impact on the satisfaction of tourists at Maimoon Palace Medan. While the quality of service ability explain the level of tourist visit is 28,6% while the rest is explained by other variable which is explained which is not intended in this research model


Author(s):  
Cendra Wadisman

 With the development of information technology companies are required to improve the efficiency and quality of service. The logistics department not only serves to support the office operations but one of the functions that will improve the effectiveness and efficiency of the company. This research was conducted to assist the logistics department in making efficient use of time, energy and cost in making logistic report at Bank Rakyat Indonesia branch of Solok. In this research will be made data processing logistics system using Java programming language and MySQL database. Based on data obtained by way of observation and interview further data analyzed to make system design as needed. Keywords : Data Processing Logistics, JAVA, MYSQL


2019 ◽  
Vol 7 (01) ◽  
pp. 60
Author(s):  
I Kadek Susila Satwika

The need to access data remotely is a person's need to be more efficient in doing a job. Currently there are many remote access application programs, one of which is TeamViewer by utilizing the internet public network. By installing a TeamViewer program on a client and server computer someone can do data work and repair remotely as long as it is connected to the internet. To be able to do remote access, of course, a client must already know the user and password from the server computer. The disadvantage of TeamViewer is that other people will easily remote access data simply by entering the user and password that the computer has on the server. To overcome this problem, VPN technology is used with the PPTP protocol where only the IP address of the client that has been registered on the proxy device can access data on the server. VPN allows clients to connect to the server privately through public networks. To find out the performance of the VPN network that is built, QoS (Quality of Service) parameter analysis is needed which includes delay, jitter, throughput and packet loss. From the results of the tests carried out, the results of QOS with an index of 3.75, which if converted to the standard TIPHON, VPN network at STMIK STIKOM Indonesia has a satisfactory quality.


Respati ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 16
Author(s):  
Lukman Lukman ◽  
Aiman Mukhlishah

INTISARIKinerja jaringan yang buruk tentu akan berdampak buruk pada kerugian bagi sebuah perusahaan atau instansi, ketika kinerja jaringan yang digunakan oleh perushaan berubah menjadi lambat, pasti sangat berpengaruh terhadap kinerja perusahaan itu sendiri, terlebih jika sebuah perusahaan selalu bergantung pada internet untuk kelancaran bisnisnya. Semakin banyaknya perusahaan perusahaan yang membutuhkan kinerja jaringan yang cepat dan aman maka untuk mengatasi hal tersebut, ada beberapa metode yang bisa digunakan seperti banyaknya pilihan metode VPN (Virtual Private Network).Teknologi VPN adalah suatu komunikasi dalam jaringan sendiri yang terpisah dari jaringan umum. Private network sendiri dianggap lebih efisien karena kecepatan transfer data yang lebih besar dari pada kecepatan transfer data pada jaringan Internet, selain itu masalah keamanan dianggap lebih bagus karena hanya bergerak dalam lingkup terbatas saja. Secara umum, VPN adalah sebuah proses dimana jaringan umum (public network atau internet) diamankan kemudian difungsikan menjadi sebuah jaringan privat (private network). Sebuah VPN tidak didefinisikan oleh rangkaian khusus atau router, tetapi didefinisikan oleh mekanisme keamanan dan prosedur-prosedur yang hanya mengijinkan penggunanya yang ditunjuk akses ke VPN dan informasi yang mengalir melaluiya.Masalah yang dihadapi saat ini yaitu ketika performa jaringan yang lambat akan berpengaruh pada kinerja perusahaan, untuk berhubungan antar kantor menggunakan internet dan email untuk mengirim data dan berkomunikasi maka dibutuhkan jaringan privat untuk memudahkan mengakses file terhadap suatu tempat yang berbeda lokasi. Namun dalam Pemilihan VPN yang akan digunakan memungkinkan kurang tepatnya pemilihan metode yang  digunakan dalam mengelola jaringan intranet untuk perusahaannya.Dari uraian diatas maka penulis melakukan analisis perbandingan sebuah teknik tunneling dengan menggunakan SSTP dan L2TP+IPSec.  SSTP dan L2TP+IPSec merupakan protokol jaringan yang dapat melindungi jaringan dari ancaman luar seperti konflik IP, MAC dan DHCP server jahat, serta membuat performa jaringan lebih baik, dengan metode penggunaan jalur tersendiri yang di lalui atau dilewati. Dari kedua metode  tersebut penulis melakukan perbandingan performa jaringan ketika di terapkan metode SSTP dan L2TP+IPSec sehingga mengetahui performa jaringan mana yang lebih bagus dan cocok digunakan sesuai dengan kebutuhan pengguna.Hasil dari penelitian ini diharapkan dapat membantu siapapun untuk menentukan metode tunneling VPN yang akan digunakan kelak dalam suatu jaringan. Sedangkan dari hasil penelitian bisa diambil kesimpulan bahwa L2TP+IPSec lebih baik dibanding SSTP, dinilai dari parameter QOS yang sudah diuji dan dibandingkan.Kata kunci: Tunneling, VPN, SSTP, L2TP, IPSec, Quality Of Service ABSTRACTPoor network performance will certainly have a bad impact on losses for a company or agency, when the network performance used by the company turns out to be slow, it must be very influential on the performance of the company itself, especially if a company always relies on the internet for the smooth running of its business. More and more companies need fast and secure network performance. To overcome this, there are several methods that can be used such as the choice of VPN (Virtual Private Network) methods.VPN technology is communication within one's own network that is separate from public networks. Private network itself is considered more efficient because the data transfer speed is greater than the data transfer speed on the Internet network, besides that security issues are considered better because it only moves in a limited scope. In general, VPN is a process in which a public network (public network or internet) is secured and then functioned as a private network. A VPN is not defined by a specific circuit or router, but is defined by security mechanisms and procedures that only allow their designated users access to the VPN and the information that flows through it.The problem currently faced is when slow network performance will affect company performance, to connect between offices using the internet and email to send data and communicate, then a private network is needed to facilitate accessing files to a different location. However, the selection of VPNs that will be used allows less precise selection of methods used in managing intranet networks for the company.From the description above, the authors conducted a comparative analysis of a tunneling technique using SSTP and L2TP + IPSec. SSTP and L2TP + IPSec are network protocols that can protect networks from external threats such as IP, MAC and DHCP server conflicts, and make network performance better, by using separate paths that are traversed or traversed. From these two methods, the writer makes a comparison of network performance when applied SSTP and L2TP + IPSec methods so that it knows which network performance is better and is suitable for user needs.The results of this study are expected to help anyone determine the VPN tunneling method that will be used later in a network. While the results of the study can be concluded that L2TP + IPSec is better than SSTP, judged by the QOS parameters that have been tested and compared.Keywords: Tunneling, VPN, SSTP, L2TP, IPSec, Quality Of Service


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