scholarly journals TeleSDC

2021 ◽  
Vol 7 (2) ◽  
pp. 403-406
Author(s):  
Tobias Pabst ◽  
Dominik Stegemann ◽  
Christoph Georgi ◽  
Martin Kasparick ◽  
Julian Suleder ◽  
...  

Abstract Telemedicine promises to increase the quality of emergency treatments. Besides the transfer of speech and video data, medical device and patient data will add additional value to the tele-guided emergency personnel. In this paper, we develop a concept for transmitting device and patient data via the open communication standards SDC in a telemedical context, including data transmission over mobile radio networks while considering the limitations of public networks, and opening new usage scenarios for telemedicine.

2021 ◽  
Vol 24 (4) ◽  
pp. 73-79
Author(s):  
Kirill Eduardovich Korepanov ◽  
Irina Alekseevna Kaisina ◽  
Roman Eduardovich Shibanov ◽  
Albert Vinerovich Abilov ◽  
Mohammed Amin Lamri

The paper presents the results of simulation of the process of video data transmission from an unmanned aerial vehicle (UAV) to a ground station using the IEEE 802.11 family standards (802.11n, 802.11ac and 802.11ax), with the ability to change modulation indices, coding schemes and data transfer rate in a network simulator NS-3. The aim of the work is to analyze the characteristics of the quality of video data transmission in the UAV network for various Wi-Fi standards, which allows determining the most suitable standard for the transmission of video data in the UAV network, depending on the distances between nodes and the required frequency band. A scenario is considered in which an unmanned aerial vehicle (UAV) hovering in the air was transmitting a video stream to a ground station, while the distance between nodes increased, and the transmission rate was maintained at the same level close to the transmission rate of the real video stream. The simulation was carried out in several stages for a more detailed study of the dependence of the packet loss of the transmitted data on the change in modulation indices, coding schemes and other parameters. Based on the simulation results, the characteristics of the video data transmission quality were obtained as a relation between the Packet delivery rate (PDR) and distance between nodes for different transmission parameters for each considered standard of the IEEE 802.11 family. Based on the results obtained, conclusions were drawn about the influence of transmission parameters on the quality of service characteristics. The study was carried out in an open-source network simulator NS-3, which implements build-in libraries that are necessary for high-quality simulation of data streaming transmission and allows you to set a wide range of parameters to obtain realistic results. The results of the work may be of interest to UAV manufacturers when planning missions in which the choice of Wi-Fi standard used as a channel for transmitting video data is crucial.


2014 ◽  
Vol 513-517 ◽  
pp. 2063-2067
Author(s):  
Lin Guang Lai ◽  
Lei Xu ◽  
Chang Sheng Cao

In the real-time network video surveillance system which uses UDP for data transmission, the packet loss and delay of H.264 video data unit would cause image pause and blur. The paused and blurry image affects the quality of users’ experience. In this paper, we put forward Idr (invalid data rate) to integrate the delay and packet loss rate and chooses code rate as the target of adjustment. We propose an adaptive transmission approach based on QoE Measurement of invalid data rate. Experiment result shows that, this approach can improve the video fluency and clarity as well as user experience.


2021 ◽  
Vol 3 (9(111)) ◽  
pp. 116-125
Author(s):  
Andriy Divitskyi ◽  
Serhii Salnyk ◽  
Vladyslav Hol ◽  
Pavlo Sydorkin ◽  
Anton Storchak

This research addressed the issue of improving the quality of service for the control system of mobile radio networks. The analysis of the forecasting sphere concerning the methods of service quality of mobile radio networks for special purposes, in particular, forecasting the time of congestion of data transmission routes is carried out. It is found that these methods are used in wired and computer networks operating at the network and data link levels. The basic parameters of the protocols of the channel and network layers of mobile radio networks are highlighted. Forecasting methods are analyzed: temporal extrapolation, causality, expert, and the main disadvantages are indicated. A model of a control system for mobile radio networks with a forecasting subsystem is shown. The features of mobile radio networks, which form the requirements for routing methods, are described. A lot of requirements have been put forward for the model of a control system for mobile radio networks. The structure of a model of a control system for mobile radio networks with an improved forecasting subsystem is proposed. On the basis of genetic algorithms, the tasks that arise in the process of identification, training and forecasting in the forecasting subsystem are solved. The operation of the processes consists in building a base of rules aimed at identifying significant dependencies in a time series based on the use of a genetic algorithm. It is based on the use of evolutionary principles to find the optimal solution. Application of the proposed model will allow real-time identification and will significantly improve the quality of service for mobile radio networks. It will increase the speed and volume of data processed during training, improve the quality and reliability of predicting changes in data transmission routes


Author(s):  
Asif Raza ◽  
Muhammad Tanveer Meeran ◽  
Muizzud din

Today data transmission is very important through different channels. Need of network security comes to secure data transformation from one network to another network. As the complexity of the systems and the networks increases, weakness expands and the task of securing the networks is becomes more convoluted. Duty of securing is done by Cryptography techniques. A colossal amount of data is exchanged over public networks like the internet due to immense accommodation. This includes personal details and confidential information. It is important to prevent the data from falling into the wrong hands. So, due to this factor we use cryptography. Encryption and decryption are the basic terms that are used in cryptography. There are few algorithms which used including, AES (Advanced Encryption Standard), DES (Data Encryption Standard), 3DES (Triple Data Encryption Standard) and BLOWFISH. The main contribution of this paper is to provide an algorithm that is useful for data transformation in cognitive radio networks. In this research, we have drawn a new symmetric key technique that is for the usage of cryptography which is helpful to make the data saved from others.


Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 393-P
Author(s):  
KHAWLA F. ALI ◽  
LIMA LAWRENCE ◽  
LAUREN A. BUEHLER ◽  
RONALD R. GAMBINO ◽  
MARWAN HAMATY

2021 ◽  
Vol 10 (2) ◽  
pp. e001380
Author(s):  
John Percival ◽  
Katharine Abbott ◽  
Theresa Allain ◽  
Rachel Bradley ◽  
Fiona Cramp ◽  
...  

BackgroundBladder and bowel control difficulties affect 20% and 10% of the UK population, respectively, touch all age groups and are particularly prevalent in the older (65+ years) population. However, the quality of continence care is often poor, compromising patient health and well-being, increasing the risk of infection, and is a predisposing factor to nursing and residential home placement.ObjectiveTo identify factors that help or hinder good continence care for patients aged 65 years and over in hospital medical ward settings. Medical care, not surgical, was our exclusive focus.MethodsWe conducted 27 qualitative interviews with nursing, medical and allied health practitioners in three hospitals. We used a purposive sample and analysed data thematically, both manually and with the aid of NVivo software.ResultsInterviews revealed perspectives on practice promoting or inhibiting good quality continence care, as well as suggestions for improvements. Good continence care was said to be advanced through person-centred care, robust assessment and monitoring, and a proactive approach to encouraging patient independence. Barriers to quality care centred on lack of oversight, automatic use of incontinence products and staffing pressures. Suggested improvements centred on participatory care, open communication and care planning with a higher bladder and bowel health profile. In order to drive such improvements, hospital-based practitioners indicate a need and desire for regular continence care training.ConclusionsFindings help explain the persistence of barriers to providing good quality care for patients aged 65 years and over with incontinence. Resolute continence promotion, in hospitals and throughout the National Health Service, would reduce reliance on products and the accompanying risks of patient dependency and catheter-associated gram-negative bacteraemia. Robust assessment and care planning, open communication and regular continence care training would assist such promotion and also help mitigate resource limitations by developing safer, time-efficient continence care.


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