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Smart Grid (SG) can be described as the concept of modernizing the traditional electrical grid. Through the addition of SG technologies traditional electrical grids become more flexible, robust and interactive, and are able to provide real time feedback by employing innovative services and products together with communication, control, intelligent monitoring, and self-healing technologies. For being...
Providing an acceptable level of quality of service (QoS) for critical applications is one of the interesting topics in next generation wireless networks. Confronting the major criticisms of resource reservation protocol (RSVP), the next steps in signalling (NSIS) was introduced as a general framework to include not only the RSVP but other signalling services in IP-based networks. It attempts to address...
In this paper we provide an overview of the signaling system that we implemented in the IPv6 QoS Parallel Internet. This Parallel Internet has been proposed as one of Parallel Internets of the IIP System developed in scope of Future Internet Engineering project. The aim of the signaling system of the IPv6 QoS Parallel Internet is to perform call setup/release for assuring end-to-end QoS (Quality of...
Next generation network(NGN) is an All-IP based heterogeneous network which includes wired network, satellite network, wireless mobile network and so on. Comparing with the traditional wired network, in NGN, the classical TCP/IP is beginning to show signs of age. In order to cope with problems such as the poor performance of wireless links and mobile terminals, including the high error rate of wireless...
Since 2008, we have been developing the integrated SoC (System-On-Chip), which incorporates the ultra-high-speed multi-level QAM modem, multiple connection type MAC (Media Access Control) and also the Gigabit Ethernet interface, in a bid to adapt to the quasi-millimeter wave broadband wireless system. In 2009, we developed the SoC for the WT (remote side Wireless Terminal on P-MP (Point-to-Multi-Point)...
The Future Internet is an initiative driven by the idea of restructuring the chaotic and unorganized Internet. Current service environments within the Internet are missing important capabilities like performance elasticity, scalability, reliability or seamless interoperability between service providers. The Internet has to become a more secure space enabling new approaches for Quality of Service and...
Over the last years the IP Multimedia Subsystem (IMS) has continuously gained in importance as the next generation communication network. The Session Initiation Protocol (SIP) was chosen the signaling protocol for session establishment and control in IMS. Losses caused by network or server overload would cause retransmissions and delays in the session establishment and would hence reduce the perceived...
Realization of end-to-end Quality of Service (QoS) provisioning in a scheme plays a very important role in improving stability and quality of communication. Although simple data switching is possible between heterogeneous networks supporting different QoS signalling, end-to-end QoS provisioning can not be completed due to different rules in executing resource reservation. In this paper, a dual-stack...
Delivering desired QoS to the applications is one of the most important challenges in next generation networks. Designing efficient queue management in midway nodes leads to improvement in NGN efficiency. This paper presents fair Efficient active Queue Management (EQM) mechanism for congestion avoidance and control in next generation networks. Proposed AQM mechanism uses instantaneous queue length...
The demanding requirements of new real-time and mobile multimedia group-based applications (e.g. IPTV and video-conferencing) motivates the research for novel and efficient network architectures, able to fulfil service requirements and increase user experience. Multicast, despite its scalability issues, is the most suitable network technology for the delivery of multiparty content. Context-awareness...
In order to evaluate performance of mobile networks, it is necessary to consider the occurrence of random failures causing performance degradation and the consequent repair actions. This approach is especially suitable for next generation networks based on the Third Generation Partnership Project (3GPP) IP Multimedia Subsystem (IMS), as a consequence of the very high Quality of Service levels required...
The research presented in this paper proposes a new packet scheduling algorithm that provides a fair, class based, delay jitter controlled packet scheduling scheme that manages handoff and buffer occupancy for 4G wireless access systems. Improved quality of service (QoS) in mobile broadband IP high-speed downlink packet access (HSDPA) networks is an important focus for next generation networks. The...
A goal for next generation mobile networks is to provide seamless personal mobile communication and improved quality of service (QoS). Fair, class based service and lossless handoff are a focus for improving QoS. The research presented in this paper proposes a scheduling mechanism for providing improved QoS in mobile broadband Internet Protocol (IP) high-speed downlink packet access (HSDPA) networks...
As the escalating demand for bandwidth continues, 100-Gigabit networks mark the new frontier to be ventured by networking equipment vendors. Network processors (NPUs), fast emerging as key components in 10-Gigabit platforms, will also empower the 100-Gigabit platforms. However, packet processing at these line rates presents significant challenges to network processor designs. The most important driving...
Telco providers are in the phase of migrating their services from PSTN to so called Next Generation Networks (NGNs) based on standard IP connectivity. This switch is expected to produce a cost degression of 50% for CAPEX, while OPEX remains fairly stable due to network management and energy costs. At the same time we are expecting a big increase of the load of a telco provider at the core level due...
EPS including Long Term Evolved (LTE) and Evolved Packet Core (EPC) has been accepted as the architecture of the next generation advanced mobile telecommunication network in the future. QoS in EPC is an important mechanism to provide guaranteed service to users. However, current QoS in EPC mainly based on barrier identification, resulting in complicated and forgetful QoS negotiation and updating process...
IMS as promising NGN architecture has to deal also with service availability because of its importance to customers. Its service-oriented architecture enables easy deployment of our proposed Service Sharing System (SSS) which enhances availability of offered services and brings their categorization and browsing. While usual approach of operators is to build own networks and services, SSS allows operators...
With the increasing use of session initiation protocol (SIP) in large deployments and the fact that numerous conventional communication networks have been spread, it is profitably to build a next generation network (NGN) linking circuit and packet-switched networks. This paper is concerned with the quality-of-service (QoS) parameters estimation problem in NGN. We have proposed a mathematical model...
The importance of providing guaranteed Quality of Service (QoS) cannot be overemphasised, especially in the NGN environment which supports converged services on a common IP transport network. Call Admission Control (CAC) mechanisms do provide QoS to class-based services in a proactive manner. However, due to the factors of complexity, scale and dynamicity of NGN, Machine Learning techniques are favoured...
One of the major challenges for next-generation mobile systems is to achieve efficient mobility management in next generation wireless networks. To track host mobility, Mobile IP setup a tunnel between the Home Agent and the Mobile Node. This paper proposes a new architecture called LinkWork Mobile MPLS which takes advantage of MPLS traffic engineering capability, to achieve fast-reroute when a mobile...
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