Overview of IP Multimedia Subsystem Protocols and Communication Services

2011 ◽  
pp. 273-299
Author(s):  
Sándor Szabó ◽  
László Gyöngyösi ◽  
Károly Lendvai ◽  
Sándor Imre
Keyword(s):  
Mobile Communications ◽  
Instant Messaging ◽  
Communication Technologies ◽  
Telecommunication Networks ◽  
Ip Multimedia Subsystem ◽  
Service Architecture ◽  
Communication Services ◽  
New Concepts ◽  
Service Portfolio ◽  
Fixed Mobile Convergence

The IP multimedia subsystem (IMS) provides advanced facilities and standardized service architecture for Next Generation Networks (NGN). IMS enables both cellular and fixed network operators to provide a wide and attractive service portfolio to the customers. In this chapter, we provide an overview of the IMS architecture and of the most popular IMS services. We discuss the basic components and mechanisms defined for IMS, the related IMS services, and we give a survey on the future of the evolving telecommunication networks. We examine the most popular IMS services such as Presence Service (PS), Instant Messaging (IM), and the background of these IMS services. The IMS system enables fixed-mobile convergence, and it bridges the gap between the fixed and mobile communications. To understand and use the new concepts and IMS services, it is important to know what the new IMS services and concepts bring to us. Our goal is to give a brief overview in order to help understanding today’s and tomorrow’s relevant communication technologies and protocols.

scholarly journals Mobile P2P Web Services Using SIP

2007 ◽  
Vol 3 (3-4) ◽  
pp. 165-185 ◽  
Author(s):  
Guido Gehlen ◽  
Fahad Aijaz ◽  
Yi Zhu ◽  
Bernhard Walke
Keyword(s):  
Service Providers ◽  
Instant Messaging ◽  
Telecommunication Networks ◽  
Ip Multimedia Subsystem ◽  
Multimedia Services ◽  
Message Routing ◽  
Internet Service ◽  
Routing Security ◽  
Session Management ◽  
Mobile P2p

Telecommunication networks and the Internet are growing together. Peer-to-Peer (P2P) services which are originally offered by network providers, like telephony and messaging, are provided through VoIP and Instant Messaging (IM) by Internet service providers, too. The IP Multimedia Subsystem (IMS) is the answer of the telecommunication industry to this trend and aims at providing Internet P2P and multimedia services controlled by the network operators. The IMS provides mobility and session management as well as message routing, security, and billing.

scholarly journals From a Human-Centric Perspective: What Might 6G Be?

2019 ◽  
Author(s):  
Shuping Dang ◽  
Osama Amin ◽  
Basem Shihada ◽  
Mohamed-Slim Alouini
Keyword(s):  
Mobile Communications ◽  
Communication Technologies ◽  
Research Community ◽  
Important Application ◽  
Communication Services ◽  
Fifth Generation ◽  
Sixth Generation ◽  
5G Network ◽  
Future Demands ◽  
Systematic Framework

<pre>As the standardization of fifth generation (5G) communications has been completed, and the 5G network will be commercially launched in 2020, the research visioning and planning of sixth generation (6G) communications are being initiated. 6G communications are expected to be the next focus in wireless communication and networking and aim to provide remarkable communication services to meet the future demands in the 2030s. We believe that the human-centric mobile communications will still be the most important application of 6G and 6G network should be human-centric. Following this rationale, high security, secrecy, and privacy are the all-important features of 6G, which shall be paid special attention from the wireless research community. To promote the research and the human-centric design ideology for 6G communications, we imagine in this article a comprehensive and systematic framework of 6G with five slices, key features, and enabling technologies. Furthermore, we briefly discuss the issues of 6G beyond communication technologies. Overall, the article aims to provide an envisioned picture of 6G and serve as a research guideline in the post-5G era.</pre>

scholarly journals What should 6G be?

2020 ◽  
Author(s):  
Shuping Dang ◽  
Osama Amin ◽  
Basem Shihada ◽  
Mohamed-Slim Alouini
Keyword(s):  
Mobile Communications ◽  
Communication Technologies ◽  
Research Community ◽  
Important Application ◽  
Communication Services ◽  
Fifth Generation ◽  
Sixth Generation ◽  
5G Network ◽  
Future Demands ◽  
Systematic Framework

<pre><pre>The standardization of fifth generation (5G) communications has been completed, and the 5G network should be commercially launched in 2020. As a result, the visioning and planning of sixth generation (6G) communications has begun, with an aim to provide communication services for the future demands of the 2030s. Here we provide a vision for 6G that could serve a research guide in the post-5G era. We suggest that human-centric mobile communications will still be the most important application of 6G and the 6G network should be human centric. Thus, high security, secrecy, and privacy should be key features of 6G and should be given particular attention by the wireless research community. To support this vision, we provide a systematic framework in which potential application scenarios of 6G are anticipated and subdivided. We subsequently define key potential features of 6G and discuss the required communication technologies. We also explore the issues beyond communication technologies that could hamper research and deployment of 6G.</pre></pre>

scholarly journals What should 6G be?

2020 ◽  
Author(s):  
Shuping Dang ◽  
Osama Amin ◽  
Basem Shihada ◽  
Mohamed-Slim Alouini
Keyword(s):  
Mobile Communications ◽  
Communication Technologies ◽  
Research Community ◽  
Important Application ◽  
Communication Services ◽  
Fifth Generation ◽  
Sixth Generation ◽  
5G Network ◽  
Future Demands ◽  
Systematic Framework

<pre><pre>The standardization of fifth generation (5G) communications has been completed, and the 5G network should be commercially launched in 2020. As a result, the visioning and planning of sixth generation (6G) communications has begun, with an aim to provide communication services for the future demands of the 2030s. Here we provide a vision for 6G that could serve a research guide in the post-5G era. We suggest that human-centric mobile communications will still be the most important application of 6G and the 6G network should be human centric. Thus, high security, secrecy, and privacy should be key features of 6G and should be given particular attention by the wireless research community. To support this vision, we provide a systematic framework in which potential application scenarios of 6G are anticipated and subdivided. We subsequently define key potential features of 6G and discuss the required communication technologies. We also explore the issues beyond communication technologies that could hamper research and deployment of 6G.</pre></pre>

Developing and Validating a M-Governance Framework Adoption Model of a University for Communication Services to Its Affiliated Institutions

2017 ◽  
Vol 7 (7) ◽  
pp. 484
Author(s):  
E. Ramganesh ◽  
E. Kirubakaran ◽  
D. Ravindran ◽  
R. Gobi
Keyword(s):  
Technology Acceptance ◽  
Technology Acceptance Model ◽  
Public Service ◽  
Mobile Applications ◽  
Communication Technologies ◽  
Mobile Technologies ◽  
Communication Services ◽  
Governance Framework ◽  
Social And Economic Development ◽  
Acceptance Model

The m-Governance framework of auniversity aims to utilize the massive reach of mobile phones and harness the potential of mobile applications to enable easy and round the-clock access to the services of its affiliated institutions.  In the current mobile age there is need for transforming e-governance services to m-Governance as m-Governance is not a replacement for e-Governance rather it complements e-Governance. With this unparalleled advancement of mobile communication technologies, universities are turning to m-governance to realize the value of mobile technologies for responsive governance and measurable improvements to academic, social and economic development, public service delivery, operational efficiencies and active stakeholder engagement. In this context the present study, aims to develop and validate a m-governance framework of a university by extending Technology Acceptance Model (TAM) with its prime stakeholders so called the Heads of the affiliated institutions. A survey instrument was developed based on the framework and it was administered with 20 Heads of the affiliated Institutions. The results also showed that the Heads of the affiliated Institutions expressed their favorableness towards m-governance adoption.

THE „CLOUDY“ CLASSROOM

2020 ◽  
Vol 11 (2) ◽  
pp. 347-352
Author(s):  
Atanaska Peneva ◽  
Keyword(s):  
Information And Communication Technologies ◽  
Mobile Communications ◽  
Teaching And Learning ◽  
Communication Technologies ◽  
Web Based ◽  
Modern Approach ◽  
Building Information ◽  
Practical Guidelines ◽  
Information And Communication ◽  
Cloud Technologies

The report presents the author’s experience in integrating modern ICT technologies in the process of teaching and learning in school. The emphasis is on the use of mobile devices and the integration of cloud technologies in schools. As an ICT teacher, the author provides some practical guidelines on how to apply innovation. The generation of 7 screens does not know a world without digital technologies and mobile communications. The discrepancy between the expectations of the digital generation and the reality in our schools is in terms of the information and communication technologies (ICT) used in them and the didactic models. Adolescents, when they find themselves in an environment that does not meet their expectations, are demotivated and redirect their attention to other objects and goals and stop being active in class. The use of the so-called. „Cloud“ technologies will significantly increase the interest and retention of students. The modern approach to building information systems is focused on developing solutions in which the collection, input and output of information is carried out through WEB-based applications or platforms.

Communication technology use and study skills

2017 ◽  
Vol 18 (3) ◽  
pp. 257-270 ◽  
Author(s):  
Penny Thompson
Keyword(s):  
Online Social Networks ◽  
Technology Use ◽  
Study Skills ◽  
Text Messaging ◽  
Instant Messaging ◽  
Negative Relationship ◽  
Communication Technologies ◽  
Study Strategies ◽  
Learning And Study Strategies ◽  
The Relationship

Research suggests a negative relationship between frequent use of communication technologies, such as text messaging and social network sites, and academic performance, but the nature of the relationship needs to be explored in greater detail. This study explored the relationship between use of communication technologies and self-reported study skills. A total of 74 first-year university students completed the online Learning and Study Strategies Inventory and reported on how frequently they used text messaging, instant messaging, and online social networks such as Facebook. Correlation analysis indicated a negative relationship between frequency of communications technology use and the Learning and Study Strategies Inventory measure of Concentration. While the study does not prove a causal relationship, it provides more detail on the specific study skills challenges students may be facing when they interrupt their studying with frequent online social communication. This increased understanding can help educators tailor study skills interventions and support more directly to students’ needs.

Architecture and Protocols for Authentication, Authorization, and Accounting in the Future Wireless Communications Networks

2008 ◽  
pp. 158-175
Author(s):  
Said Zaghloul ◽  
Admela Jukan
Keyword(s):  
Telecommunication Networks ◽  
Fourth Generation ◽  
Network Architectures ◽  
Ip Multimedia Subsystem ◽  
Communications Networks ◽  
Remote Authentication ◽  
Core Technology ◽  
Radius Protocol ◽  
Important Design ◽  
Current Systems

The architecture, and protocols for authentication, authorization, and accounting (AAA) are one of the most important design considerations in third generation (3G)/fourth generation (4G) telecommunication networks. Many advances have been made to exploit the benefits of the current systems based on the protocol remote authentication dial in user service (RADIUS)protocol, and the evolution to migrate into the more secure, robust, and scalable protocol Diameter. Diameter is the protocol of choice for the IP multimedia subsystem (IMS) architecture, the core technology for the next generation networks. It is envisioned that Diameter will be widely used in various wired and wireless systems to facilitate robust and seamless AAA. In this chapter, we provide an overview of the major AAA protocols RADIUS and Diameter, and we discuss their roles in practical 1xEV-DO network architectures in the three major network tiers: access, distribution, and core. We conclude the chapter with a short summary of the current and future trends related to the Diameter-based AAA systems.

Citizen Participation in Public Administration

2021 ◽  
pp. 72-93
Author(s):  
Veronika Linhartova
Keyword(s):  
Public Sector ◽  
Public Goods ◽  
Public Administration ◽  
Information And Communication Technologies ◽  
Citizen Participation ◽  
Communication Technologies ◽  
Goods And Services ◽  
New Concepts ◽  
Information And Communication ◽  
Decision Making Processes

The aim of the chapter is to evaluate the citizens involvement in contemporary public administration, especially in the Czech Republic. New concepts of governance and management of public sector organizations enable providing new or improved public goods and services that better meet consumer´s needs. These concepts also represent reformed or new approaches to governance with increased citizen participation. Public administration responds to dynamic changes in information and communication technologies and their maturity and uses them in the framework of e-government. Thanks to the implementation of e-government, citizens have become more knowledgeable, able to participate in decision-making processes, thus automatically becoming co-producers of public goods or services. This approach to public good and service delivery describes modern public sector management theories as co-creation. Although co-creation is an entirely new concept in some countries, various forms of public participation are becoming increasingly important worldwide and can be expected to continue in the future.

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