Generation Network Environment Research Articles

Converged services composition with case-based reasoning

In order to achieve the converged service composition in next generation network environment, it is necessary to have an approach that is capable to manage the difficulties of potential complexities due to service unavailability and network failures. In response to these challenges, we propose a converged service composition (CSC) framework having a management function that uses case-based reasoning (CBR) for handling services unavailability and/or network failures during the service composition process.

The Value Co-Creation Strategy for Telecommunication Carriers: Focusing on the Assessment of Potential Strategic Alliance Partners

The telecommunications market is experiencing a new paradigm of convergence as voice, data, broadcasting, and communication is being used into a new form of service. With this paradigm shift, telecommunications companies will compete under a unified set of broadband wireless multimedia services in the next generation network(NGN) environment(e.g., 5G or beyond 5G), while existing networks provided individual services tailor specifically to their networks. In this situation, one business player cannot provide all kinds of telecommunications services by oneself, instead it might be trying to integrate or collaborate with other companies in the integrated value chain as value co-creation strategies. Unfortunately, however, there are few specific guide lines in deciding their strategic directions; which partner can give us a competitive advantage to support next generation services and what should be preemptive? Therefore, this paper suggests the new strategic framework, called Value Co-Creation Framework (VCF), as the guideline for evaluating and selecting strategic alliance partners to the telecommunications companies in the NGN era. Finally, we provide an example of partner assessment for the major wireless carrier in Korean Telecommunications market and provide the insightful implications.

Graphical modelling approach for monitoring and management of telecommunication networks

The recent focus on monitoring and managing telecommunication networks in a more efficient and autonomic way has led to the widespread application of machine learning (ML) approaches for network management tasks. In order to study the behaviour and evaluate the performance of such network management systems, it is a requirement that a suitable modelling framework exists. The work presented here addresses this need by comparing existing ML-based approaches and proposing a solution which employs the prediction capabilities of the Bayesian networks (BN) approach. It also formulates a BN-based decision support system for providing real-time call admission control (CAC) decisions in the next generation network (NGN) environment. In order to provide a realistic simulation environment, it surveys the existing computer network simulators and BN modelling simulators to choose the most suitable simulators to test the proposed models. The novelty of this research is validated through offline modelling and online performance evaluation of Bayesian networks-based admission control (BNAC) in terms of the metrics of packet delay, packet loss, queue size and blocking probability. This paper concludes that BNAC approach is appropriate choice for implementing a CAC solution which is efficient and autonomic.

A socio-technical framework for Internet-of-Things design: A human-centered design for the Internet of Things

This study presents a case application of a socio-technical framework to assess and predict the development of the Internet of Things (IoT) in Korea. Applying a socio-technical system approach to the IoT, this paper seeks a clear understanding of how the IoT will evolve and stabilize in a smart environment. It investigates the complex interaction between social and technical aspects of the IoT, by highlighting the co-evolution, interaction, and interface, which constitute the next generation network environment. It describes the challenges in designing, deploying, and sustaining the diverse components of the IoT, and provides a snapshot of Korea’s current approach to meeting this challenge. Finally, the findings of this study provide insights into these challenges and opportunities, by offering a socio-technical analysis of IoT development. The insights help to conceptualize how the IoT can be designed and situated within human-centered contexts.

Next generation network environments in Europe — The significance of the EU as a policy actor

The relatively new topic of Next Generation Networks (NGN) is one which is ascending rapidly communications policy agendas in Europe and beyond. How these networks might be created and, beyond that, how they might function in a sustained and broadly useful manner, and the implications of this, are issues which crystallise a raft of often complex policy concerns that have emerged, for at least a decade, in historically distant though increasingly connected quarters of electronic network communications. This article breaks new ground in the analysis of the emerging role of the EU by exploring EU NGN policy from a convergence infrastructural and content perspective. Whilst at this stage, despite new ‘policy packaging’, the EU's NGN policy activity is resonant of past telecommunications and audiovisual policies, the article contends that there are key areas where the EU can exercise considerable policy leverage through utilising a combination of formal legal and soft governance capacities. This has a greater chance of materialising how the more transnational NGN networks and services become.

Class Based Admission Control by Complete Partitioning -Video on Demand Server

In the next generation network (NGN) environment specific consideration is on bandwidth minimization, because this reduces the cost of network. In response to the growing market demand for multimedia traffic transmission, NGN concept has been produced. The next generation network provides multimedia services over high speed networks, which supports DVD quality video on demand. Although it has numerous advantages, more exploration of the large-scale deployment video on demand is still needed. The focus of the research presented in this paper is a class based admission control by the complete partitioning of the video on demand server. In this paper we present analytically and by simulation how the blockage probability of the server significantly affects the on demand video request and the service. We also present how the blockage probability affects the performance of the video on demand server.

A socio-technical framework for cyber-infrastructure design: Implication for Korean cyber-infrastructure vision

This study presents a practical case application of socio-technical framework to assess and predict the development of cyber-infrastructure (CI) in Korea. Applying a socio-technical system approach to CI, this paper attempts to gain a clear understanding of how CI will evolve and stabilize in the cyber environment. It investigates the complex interaction between social and technical aspects of CI by highlighting the co-evolving nature, diversity, and interface which constitute the next generation network environment. It describes the challenges in developing, deploying, and maintaining the diverse components of CI and provides a snapshot of Korea's current approach to supporting members in meeting this challenge. The purpose of this study is to provide insight into these challenges and opportunities by offering a socio-technical analysis of CI development involving the social dynamics and organizational, policy, management, and administration decisions inherent in the design and development of CI.

Socio-technical challenges in the development of digital multimedia broadcasting: A survey of Korean mobile television development

This paper examines the prospectus of Digital Multimedia Broadcasting from the technical, economic and regulatory issues. This paper attempts to gain a better understanding of how DMB will evolve and stabilize in next generation network environments. Two research questions guide this study: (1) How does DMB trigger a change in policy, market and industry structure? (2) What are the driving forces of the rapid DMB development in Korea? As these questions involve socio-technical issues, this study uses a socio-technical perspective to investigate the complex relations between the social and technical aspects of DMB by highlighting the co-evolving nature, diversity, and interface between different driving forces and policy. The finding is that Korean DMB is the outcome of a proactive strategy of a telecom carrier and the Korean government's industrial policy to support such strategy. Among the push-oriented trajectory, however, non-technical issues such as users, market and regulation are left behind, which reveals the disjunction of the DMB development in terms of the socio-technical system perspective. The development of DMB sheds light on the growing challenges in the dynamics of industry, regulation, and technology.

Prospectus of mobile TV: Another bubble or killer application?

This paper investigates the prospectus of digital multimedia broadcasting from the technical, economic and regulatory issues and whether the market is evolving equitable, open, and competitive environment. Applying concepts of open access policy to the emerging technology of DMB, this paper attempts to gain a better understanding of how DMB will evolve and stabilize in next generation network environments. Three research questions guide this study: (1) How does DMB trigger a change in policy, market and industry structure? (2) What are the driving forces of the rapid DMB development in Korea? (3) Does DMB haul new generation network environment by disrupting the current network environment? As these questions involve socio-technical issues, this study uses a socio-technical perspective to investigate the complex relations between social and technical aspects of DMB by highlighting the co-evolving nature, diversity, and interface, which constitute the next generation network environment. The implication of next generation networks involves the dynamics of industry, regulation, and technology. Finally, this paper provides the DMB prospectus in reference to the next generation network environment.

Adaptive bandwidth provisioning in an integrated 3G and WLAN environment

AbstractIn this paper, we propose a practical bandwidth reprovisioning scheme in an integrated third generation (3G) and wireless local area network (WLAN) environment. We investigate how to increase available bandwidth for conversational class while keeping the packet loss probability of background class below a threshold. The proposed scheme is implemented as a simple network management protocol (SNMP) compliant management information base (MIB) and deployed at packet data serving node (PDSN) equipment. The experiments conducted on 1x evolution for data and voice (1xEV‐DV) testbed show that the proposed scheme increases the bandwidth of the conversational class and guarantee adequate service quality of the background class. Copyright © 2005 John Wiley & Sons, Ltd.