10 research outputs found
Implementation architecture of HMIPv6 in an emulated Self-configuring Multi-hop mobile Network testbed
No full textThis paper describes the architecture of a Self-configuring Multi-hop mobile Network and a testbed configuration to experiment HMIPv6 seamless mobility management for a MN located in a self-configuring multi-hop network. The testbed comprises of a set of mobile nodes, Internet gateways, access network and the global IPv6 Internet. The mobility of the nodes and the resulting network topology are emulated. A brief overview of the self-con figuration mechanism and an enhanced HMIPv6 protocol to work in a self-configuring multi-hop environment is potrayed. In addition, this paper concentrates on the complexities and functionalities involved in the implementation of the proposed architecture
An Emulated IPv6 Based Self-Configuring Multi-Hop Mobile Network Testbed: Architecture and Performance Analysis
No full text
Sampling ISP backbone topologies
No full textLarge computer networks are too large to emulate or actually reproduce in conventional lab environments. Graph generation/reduction techniques have been a valuable tool to solve this limitation. However, current techniques focus on local features (e.g. router out-degree, clustering coefficient, traffic difference between edges for building a hierarchy) that do not preserve router-level backbone geographical/hierarchical features or the end-to-end delay between any arbitrary points. This letter proposes a geographical-based reduction mechanism that enables emulation in lab settings while preserving the global features of typical backbone networks. The performance evaluation is based on six inferred ISP backbone maps.</p
Optimizing mobile video streaming through collaboration between content providers and 5G networks
No full text9697The use of the internet and general-purpose networks to transport and consume media content is increasing over years. According to the Ericsson Mobility Report, by 2028, 5G networks will carry 69 percent of the world's smartphone traffic. The largest and fastest-growing mobile data traffic segment is video, including both social media and streaming services, with the delivery of video content expected to account for 80 percent of the mobile data traffic [1]. Beyond purely over-the-top (OTT) distribution, advanced features in next-generation networks, with 5G among them, are a key opportunity to shape the way media is handled and optimize its transport and delivery
3GPP Rel-17 5G Media Streaming and 5G Broadcast powered by 5G-MAG Reference Tools
No full text8590The expansion of connectivity has opened the door for new ways of creating, distributing and consuming multimedia content. According to the Ericsson Mobility Report [1], by 2028, 5G networks will carry 69 percent of the world's smartphone traffic, with the delivery of video expected to account for 80 percent of the mobile data traffic. Engaging in the development of global technologies, such as 5G, is an opportunity to shape their capabilities towards the creation of new services and applications. 5G Media Streaming is a set of specifications, functionalities and APIs for service providers to manage 5G System capabilities such as content provisioning. quality of service, metrics and consumption reporting, network assistance, dynamic network policies, among other functionalities. Furthermore, it also allows managing the different delivery mechanisms available in 5G, including unicast, multicast and broadcast, edge processing, etc.The 5G Media Action Group (5G-MAG) has undertaken the task to drive the implementation of 5G multimedia services and applications. This is done by implementing the open-source 5G-MAG Reference Tools, which also provide feedback to relevant standards developing organizations while strengthening collaboration between service providers, network operators, systems integrators, technology vendors, app developers and users.This paper presents an overview of the technologies and features currently being developed as part of the 5G-MAG Reference Tools and the first services and applications supported. This currently involves several building blocks for 5G Media Streaming, including baseline features such as content hosting and media session handling, and an end-to-end toolbox for LTE-based 5G Broadcast. This is now the framework for contributors to add more advanced functionalities as soon as more specifications, features and functionalities become available
Scalable network-aware data centre federation
No full textThis paper presents the problems for dynamically deploying applications in a multi-tenant federated environment where end-to-end isolation, on-demand scalability and Quality of Service are critical factors. In addition, we propose an 'framework' that tackles these issues through the collaboration between data centres and network operators. This is achievable using a concept known as Dynamic eXchange Points (DXP), which is a set of connecting points that temporarily allows communication between two or more domains to support requests from applications. The feasibility of this framework is demonstrated with a proof of concept prototype. It reveals that there is a need for network operators to tackle the scalability issue under a dynamic environment with a large number of users.</p
