Daidalos: An Operator and Scenario driven Integrated Project

Beyond 3G networks have to deal with the integration of multiple differen requirements, besides technological aspects. Most especially business perspectives, and user requirements, are essential from the telecommunications operator point of view. . This paper describes the formal path of an operator and scenario driven approach used within the Daidalos project in order to develop a Beyond 3G network architecture and to verify these technical developments by proof-of concept demonstrations

Beyond Certificates: 6G-ready Access Control for the Service-Based Architecture with Decentralized Identifiers and Verifiable Credentials

In 6G, mobile networks are poised to transition from monolithic structures owned and operated by single mobile network operators into multi-stakeholder networks where various parties contribute with infrastructure, resources, and services. This shift brings forth a critical challenge: Ensuring secure and trustful cross-domain access control. This paper introduces a novel technical concept and a prototype, outlining and implementing a 5G Service-based Architecture that utilizes Decentralized Identifiers and Verifiable Credentials to authenticate and authorize network functions among each other rather than relying on traditional X.509 certificates or OAuth2.0 access tokens. This decentralized approach to identity and permission management for network functions in 6G reduces the risk of a single point of failure associated with centralized public key infrastructures, unifies access control mechanisms, and paves the way for lesser complex and more trustful cross-domain key management for highly collaborative network functions of a future Service-based Architecture in 6G.Comment: This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessibl

Link Weighting: An Important Basis for Charging in the Internet

Current charging mechanisms in the Internet are restricted mainly to volume and time of the day. We propose a mechanism which allows to use additional information for charging in the edges and core of the network. Links or network clouds will have weights which are dynamic, e.g. based on congestion level. This mechanism covers the current Internet protocol, IPv4, and the future one, IPv6, and in both cases, unicast and multicast. We also provide discussion on how charging using these weights along links or network clouds from edge to edge could be implemented. Keywords Border Router; Charging; Congestion; Internet Protocol; Multicast; Differentiated Services; TTL Field; Unicast. Contents 1 Introduction 3 1.1 Differentiated Services . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Unicast Proposal 4 2.1 Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Weighted TTL . . ...

An Operational Conceptual Model for Global Communication Infrastructures

The global communication infrastructure has taken an increased relevance for the future global multimedia village. This global infrastructure has suffered from a mismatch between the conceptual models being used, and the effective operational networks deployed to support it. This mismatch is now affecting the much needed developments to support a global village. This paper presents a novel model for structuring communication networks which closely reflects the visions and needs from an operational network. This model shows a path for protocol evolutions for the global communication infrastructure

A Linux Implementation of a Differentiated Services Router

The Internet Engineering Task Force (IETF) is currently working on the development of Differentiated Services (DiffServ). DiffServ seems to be a promising technology for next-generation IP networks supporting Quality-of-Services (QoS). Emerging applications such as IP telephony and time-critical business applications can benefit significantly from the DiffServ approach since the current Internet often can not provide the required QoS. This paper describes an implementation of Differentiated Services for Linux routers and end systems. The implementation is based on the Linux traffic control package and is, therefore, very flexible. It can be used in different network environments as first-hop, boundary or interior router for Differentiated Services. In addition to the implementation architecture, the paper describes performance results demonstrating the usefulness of the DiffServ concept in general and the implementation in particular