scholarly journals Disruptions to shared mental models from poor quality of service in collaborative virtual environments

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nicholas Milef ◽  
Adam Ryason ◽  
Di Qi ◽  
Samuel O. Alfred ◽  
Cullen D. Jackson ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Virtual Environments ◽  
Task Performance ◽  
Mental Model ◽  
Quality Of Experience ◽  
Poor Quality ◽  
Collaborative Virtual Environments ◽  
User Interactions ◽  
And Performance

AbstractCollaborative virtual environments are being used in various applications ranging from online games to complex team training scenarios. The key to the success of such environments is the ability of the participants to form a shared mental model of the collaborative task being performed. Poor quality of service can deteriorate user performance and quality of experience, leading to a disruption of this mental model. While the effects of quality of service have been analyzed for traditional desktop environments, these effects remain unclear in collaborative virtual environments during user-to-user interactions. Here, we analyze the role of latency and packet bursts, two common problems in collaborative applications, on both simulator perception and actual task performance in a collaborative fire-fighting simulator. This exploratory study indicates that large latencies have a significant (p < 0.05) impact on the quality of experience, but not task performance. In contrast, packet bursts have a much larger impact on both the quality of experience and performance. Additionally, the network role, such as whether a user is a client or server, showed a significant (p < 0.05) impact on task performance in conditions impaired by packet bursts.

scholarly journals Topology Control for Resource Management in Microwave Backhaul Networks

2021 ◽  
Author(s):  
◽  
Alexander Deng
Keyword(s):  
Quality Of Service ◽  
Cost Effectiveness ◽  
Topology Control ◽  
Reducing Power ◽  
Poor Quality ◽  
Optimal Topology ◽  
Core Networks ◽  
Backhaul Networks ◽  
New Algorithms

<p>Microwave backhaul networks are the dominant technology used to connect together access and core networks for their flexibility and cost-effectiveness in deployment. Unfortunately, microwave backhaul networks are susceptible to interference and are statically managed leading to poor Quality of Service (QoS) in the form of high delays and loss as well as being inefficient on energy. The use of Software Defined Networking (SDN) is proposed to address these problems by dynamically managing resources to work around the interference and remove static allocations. Two new algorithms, CUT and OptiCUT were designed to compute an optimal topology, to minimise loss and delay while at the same time reducing power consumption.</p>

scholarly journals Quality of Service to the Regional Road Transport Service

2016 ◽  
Vol 1 (2) ◽  
pp. 216
Author(s):  
Suela E.Shpuza
Keyword(s):  
Quality Of Service ◽  
Customer Service ◽  
Performance Standards ◽  
Road Transport ◽  
Service Organizations ◽  
Transport Service ◽  
Lack Of Information ◽  
And Performance ◽  
High Level

Performance is measured and done, the quality represents a key element to achieve the performance, especially customer service quality. In response to the pressure of globalization, the market increasingly competitive and volatile market dynamics that, many organizations actively seeking ways to add value to their services and improve their quality of service. Organizations usually tend to make their operations efficient priority. This process begins with the assessment of nevojave customers, their requirements and assessing the performance of domestic human resources in organization and performance depends on the outcome of the estimated earlier. Since this process can proceed in different directions. The causes of these results may be the lack of information and support of high-level management, performance standards unclear, inaccuracies assessors, very large number of forms to be completed and the use of software for the opposite purpose.

Quality of Experience (QoE) for Wireless Video Over Critical Communication Systems

2017 ◽  
pp. 132-167
Author(s):  
Emad Danish ◽  
Mazin I. Alshamrani
Keyword(s):  
Resource Allocation ◽  
Quality Of Service ◽  
Energy Consumption ◽  
Communication Systems ◽  
Quality Of Experience ◽  
Service Providers ◽  
Wireless Video ◽  
User Centric ◽  
Near Future

Video streaming is expected to acquire a massive share of the global internet traffic in the near future. Meanwhile, it is expected that most of the global traffic will be carried over wireless networks. This trend translates into considerable challenges for Service Providers (SP) in terms of maintaining consumers' Quality of Experience (QoE), energy consumption, utilisation of wireless resources, and profitability. However, the majority of Radio Resource Allocation (RRA) algorithms only consider enhancing Quality of Service (QoS) and network parameters. Since this approach may end up with unsatisfied customers in the future, it is essential to develop innovative RRA algorithms that adopt a user-centric approach based on users' QoE. This chapter focus on wireless video over Critical communication systems that are inspired by QoE perceived by end users. This chapter presents a background to introduce the reader to this area, followed by a review of the related up-to-date literature.

Blockchain and Its Applications in Healthcare

2021 ◽  
pp. 271-294
Author(s):  
Maitri Rajesh Gohil ◽  
Sumukh Sandeep Maduskar ◽  
Vikrant Gajria ◽  
Ramchandra Mangrulkar
Keyword(s):  
Quality Of Service ◽  
Production Line ◽  
State Of The Art ◽  
Healthcare Systems ◽  
Cutting Edge ◽  
Blockchain Technology ◽  
Health Institutions ◽  
And Performance ◽  
Patient Centric

Growing organizations, institutions, and SMEs demand for transformation in all the aspects of their businesses along with the progression in time and technology. When it comes to healthcare, the growth should be heightened to higher levels with necessity. The need of providing quality of service (QoS) in healthcare is taking significant place, allowing health institutions and medical compliances to develop an ecosystem with cutting-edge technology with the same reliability but better productivity and performance. Moreover, the healthcare systems are aiming for a more patient-centric strategy. Healthcare systems work on complicated and traditional methods, oftentimes administered via teams of professionals who manage data and supportive mechanisms of the system. Blockchain could streamline and automate those methods, conserving weeks of effort in the company's production line to increase the overall revenue and discover new opportunities. This chapter aims to illustrate blockchain technology along with its state-of-the-art applications in healthcare.

A Generic Adaptation Framework for Mobile Communication

2011 ◽  
Vol 2 (1) ◽  
pp. 46-57
Author(s):  
Hong Sun ◽  
Ning Gui ◽  
Chris Blondia
Keyword(s):  
Quality Of Service ◽  
Mobile Devices ◽  
Mobile Communication ◽  
Quality Of Experience ◽  
Adaptation Strategies ◽  
Easy Access ◽  
Mobile Terminals ◽  
System Resources ◽  
New Applications

Today, technologies are providing mobile terminals with much more powerful computational abilities. Such improvement has made it possible to run many complex applications on mobile devices. However, many of these new applications are also resource demanding. Lacking sufficient resources would cause performance failures and impact negatively on the users’ quality of experience. In order to improve this, it is important to provide the users with an easy access to specifying their requirements. It is also crucial to monitor the system resources and make corresponding adaptation immediately according to the user’s specifications. In this paper, the authors propose adaptation strategies that flexibly combine the process of monitoring and adaptation, which provides an easy way to specify user’s requirements. By tuning the quality of service, the applications’ demand on system resources is reduced, thus decreasing the chances of performance failures and improving the users’ quality of experience.

scholarly journals Customer-Oriented Quality of Service Management Method for the Future Intent-Based Networking

2020 ◽  
Vol 10 (22) ◽  
pp. 8223
Author(s):  
Mykola Beshley ◽  
Peter Veselý ◽  
Andrii Pryslupskyi ◽  
Halyna Beshley ◽  
Marian Kyryk ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Quality Management ◽  
Service Quality ◽  
Quality Of Experience ◽  
Service Management ◽  
Customer Experience ◽  
Telecommunication Networks ◽  
Service Quality Management ◽  
Management Method

The rapid development and spread of communication technologies is now becoming a global information revolution. Customers have a need for communication services, which could be flexibly configured in accordance with their Quality of Experience (QoE) requirements. Realizing the close connection between customer experience and profitability, the service provider has been placing more and more attention on customer experience and QoE. The traditional quality of service management method based on SLA (Service Level Agreement) is not sufficient as a means to provide QoE-related contracts between service providers and customers. The current SLA method is mostly limited and focused on technical aspects of QoS (Quality of Service). Furthermore, they do not follow on the network the principles and semantic approach to the QoS specification for a communication service using QoE parameters. In this paper, we propose a customer-oriented quality of service management method for future IBN (Intent-Based Networking). It is based on a new QoE metric on a scale from 1 to 5, which allows one to take into account the commercial value of e-services for customers. Based on this approach, the network configuration and functionality of network equipment automatically changes depending on customer requirements. To implement the new method of service quality management, an algorithm for routing data packets in the network was developed, taking into account the current load of the forecast path. The algorithm of billing system functioning in conditions of customer-oriented quality management in telecommunication networks has been created. To investigate the effectiveness of the proposed method of service quality management with the traditional SLA method, we developed a simulation network model with the implementation of two approaches. By conducting a simulation, it was determined that the proposed method gives an average gain of 2–5 times for the criterion of the number of customers who require high quality of experience of the service.

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