Dirk Trossen

Dirk Trossen
InterDigital Europe, London

PhD

About

135
Publications
13,979
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1,518
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Introduction
Skills and Expertise

Publications

Publications (135)
Article
Full-text available
Operators have been adopting the cloud‐native paradigm for the roll‐out of 5G architecture. With it goes the introduction of the service‐based architecture as a key design pattern for realizing future control‐ and ultimately user‐planes of mobile networks. The main benefits of this new design pattern are increased flexibility, meaning new business...
Article
Full-text available
The IP-over-ICN strategy intends to establish islands of networks that internally route packets based on Information-Centric Networking (ICN) while maintaining IP-based protocols at the ingress and egress of the network. This strategy aims at benefits from the use of ICN-based routing while maintaining backward compatibility with IP-based services....
Conference Paper
Full-text available
Operators have been adopting the cloud-native paradigm for the rollout of 5G architecture. With it goes the introduction of the service-based architecture as a key design pattern for realizing future control, and ultimately user planes of mobile networks. The main benefits of this new design pattern are the increased flexibility to address new busi...
Article
Full-text available
This report is the second technology roadmap for a ground-breaking media service delivery platform being developed by the FLAME project. The report describes the software products to be delivered at infrastructure, platform and media service layers and how combinations of products are used to exploit the benefits of highly distributed software-defi...
Article
The design of real-time interactive systems must consider how experience, performance and cost is influenced by the allocation of compute, storage and network resources necessary to process and delivery services and content. This report outlines the general challenges for service developers designing interactive systems and how the FLAME service de...
Preprint
Full-text available
Future scenarios, such as AR/VR, pose challenging latency and bandwidth requirements in 5G. This need is complemented by the adoption of cloud principles for providing services, particularly for virtualizing service components with which virtualized instances can appear rapidly at different execution points in the network. While providing service e...
Article
Mobile broadband communication has pervaded the communication market, responding to the most common and compelling nowadays users’ needs for continued connectivity, fast browsing and audio/video streaming on handheld portable devices. Building on the 4G success through LTE and LTE-Advanced together with recent deployments in large-scale country-wid...
Article
This report provides the FLAME Future Media Internet (FMI) vision in 2019. The vision considers the evolving landscape of media services and technological paradigms that inspire 5G. The deliverable provides updated descriptions of FLAME partner validation scenarios and media service use cases, which leverage the content delivery optimizations provi...
Article
This report provides the second version of the FLAME platform architecture and infrastructure specification. It outlines therefore the blueprint that forms the basis for further specification but more importantly the implementation work towards a deployable FLAME platform within the infrastructures of Bristol and Barcelona, and other sites. The rep...
Conference Paper
Full-text available
The efficient provision of IPTV services requires support for IP multicasting and IGMP snooping, limiting such services to single operator networks. Information-Centric Networking (ICN), with its native support for multicast seems ideal for such services, but it requires operators and users to overhaul their networks and applications. The POINT pro...
Preprint
Full-text available
Information-centric networking (ICN) has long been advocating for radical changes to the IP-based Internet. However, the upgrade challenges that this entails have hindered ICN adoption. To break this loop, the POINT project proposed a hybrid, IP-over-ICN, architecture: IP networks are preserved at the edge, connected to each other over an ICN core....
Article
Full-text available
Efficient mobility management techniques are critical in providing seamless connectivity and session continuity between a mobile node and the network during its movement. However, current mobility management solutions generally require a central entity in the network core, tracking IP address movement and anchoring traffic from source to destinatio...
Article
Full-text available
Information-centric networking (ICN) has long been advocating for radical changes to the IP-based Internet. However, the upgrade challenges that this entails have hindered ICN adoption. To break this loop, the POINT project proposed a hybrid, IP-over-ICN, architecture: IP networks are preserved at the edge, connected to each other over an ICN core....
Article
Full-text available
The efficient provision of IPTV services requires support for IP multicasting and IGMP snooping, limiting such services to single operator networks. Information-Centric Networking (ICN), with its native support for multicast seems ideal for such services, but it requires operators and users to overhaul their networks and applications. The POINT pro...
Article
Full-text available
Flexible and efficient CDNs are critical to facilitate content distribution in 5G+ architectures. Current CDNs suffer from inefficient request mapping based on DNS redirection, and inefficient content distribution from origin to edge servers, through content reflection. We proposes a novel, flexible CDN architecture that removes the need for DNS-ba...
Article
Full-text available
The heterogeneous and distributed nature of the Internet of Things (IoT) is driving the need for extremely fast and fine-grained service provisioning in 5/5+G architectures and beyond. To meet these needs, it is critical to enable efficient and flexible computation and networking fabrics, that can be rapidly reconfigured to meet the computation and...
Article
Full-text available
This report is the first technology roadmap for a ground-breaking media service delivery platform being developed by the FLAME project. The report describes the software products to be delivered at infrastructure, platform and media service layers and how combinations of products are used to exploit the benefits of highly distributed software-defin...
Article
D3.3 provides the first version of the FLAME platform architecture and infrastructure specification. It outlines therefore the blueprint that forms the basis for further specification work in WP3 but more importantly the implementation work in WP4 towards a deployable FLAME platform within the infrastructures of Bristol-Is-Open and Barcelona. D3.3...
Article
Full-text available
FLAME will establish and grow a sustainable Future Media Internet (FMI) ecosystem to ensure broad socio-economic impact creation through a comprehensive and well-articulated engagement strategy and plan based on a rich set of dedicated activities. This document describes the core strategy and plan, as defined in the first months of the project acti...
Article
Full-text available
This deliverable presents the developing vision of FLAME within the Future Media Internet (FMI). The FLAME FMI vision is described through use cases and scenarios for novel and high value media services to consumers and their combination with innovative infrastructure and network services. The vision addresses the changing nature of participation i...
Article
Full-text available
Seamless connectivity plays a key role in realising QoS-based delivery in mobile networks. However, current handover mechanisms hinder the ability to meet this target, due to the high ratio of handover failures, packet loss and service interruption. These challenges are further magnified in Heterogeneous Cellular Networks (HCN) such as Advanced Lon...
Article
nformation-centric networking (ICN) has been positioned for a number of years as a possible replacement to the IP-based Internet architecture with key promises in terms of network efficiency, privacy, security and novel applications. However, such wholesale replacement of the IP-based Internet through a new routing and service infrastructure has al...
Article
Full-text available
The journey towards the deployment of next generation networks has recently accelerated, driven by the joint effort of research and standards organisations. Despite this fact, the overall picture is still unclear as prioritization and understanding on several key concepts are not yet agreed by major vendors and network providers. Network Slicing is...
Article
Full-text available
Efficient mobility management techniques in wireless networks are critical in providing seamless connectivity and session continuity between the user equipment (UE) and the network during mobility. Current wireless networks with different access and core technologies are tending towards network controlled mobility management (NetLMM) and eliminatin...
Conference Paper
Information-centric networking (ICN) has been actively studied as a promising alternative to the IP-based Internet architecture with potential benefits in terms of network efficiency, privacy, security, and novel applications. However, it is difficult to adopt such wholesale replacement of the IP-based Internet to a new routing and service infrastr...
Article
A well known drawback of IP-multicast is that it requires per-group state to be stored in the routers. Bloom-filter based source-routed multicast remedies this problem by moving the state from the routers to the packets. However, a fixed sized Bloom-filter can only store a limited number of items before the false positive ratio grows too high imply...
Article
Enabling universal Internet access has been recognized as a key issue to enabling sustained economic prosperity, evidenced by the myriad of initiatives in this space. However, the existing Internet architecture is seriously challenged to ensure universal service provisioning at economically sustainable price points, largely due to the costs associa...
Article
Full-text available
Multicast data delivery can significantly reduce traffic in operators' networks, but has been limited in deployment due to concerns such as the scalability of state management. This paper shows how multicast can be implemented in contemporary software defined networking (SDN) switches, with less state than existing unicast switching strategies, by...
Article
Full-text available
This paper presents a proposition for informationcentric networking (ICN) that lies outside the typical trajectory of aiming for a wholesale replacement of IP as the internetworking layer of the Internet. Instead, we propose that a careful exploitation of key ICN benefits, expanding previously funded ICN efforts, will enable individual operators to...
Conference Paper
This paper presents a proposition for informationcentric networking (ICN) that lies outside the typical trajectory of aiming for a wholesale replacement of IP as the internetworking layer of the Internet. Instead, we propose that a careful exploitation of key ICN benefits, expanding previously funded ICN efforts, will enable individual operators to...
Conference Paper
Lifestyle management solutions are of increasing interests due to the proliferation of mobile devices as well as wearables. The personalized nature of the recordings through such solutions, however, increasingly raises privacy concerns, particularly when relying on cloud-based storage. This paper presents our work on building a lifestyle management...
Patent
Full-text available
Disclosed is a system and a method to provide event notification. The method operates an event server (20) with a subscriber unit (12). The method includes formulating a query; sending a subscription request message to the event server, the subscription request message comprising the query; responsive to a receipt of the subscription request messag...
Article
Revealing one's interests in communication has been recognized as a growing problem in the Internet. We postulate that it is desirable for future information retrieval systems to provide privacy in both what information is requested and what information is received, without raising obstacles to the deployment of accounting and access control mechan...
Patent
Full-text available
Disclosed is an event notification system and a method to operate an event notification system that has servers and a subscriber unit. The method includes associating with a particular event subscription an “available” event template subscription; sending an initial notify message to the subscriber unit with a current availability of an event state...
Article
Large-scale information dissemination in multicast communications has been increasingly attracting attention, be it through uptake in new services or through recent research efforts. In these, the core issues are supporting increased forwarding speed, avoiding state in the forwarding elements, and scaling in terms of the multicast tree size. This p...
Article
Recent years have witnessed explosive growth in traffic demands combined with evolving content characteristics and dissemination patterns. This growth has resulted in an increasing demand for information identification as well as informationbased communication functions that can meet this evolution. Consequently, information-centric networking envi...
Article
Lowest Cost Denominator Networking (LCDnet) envisions "breaking the mould of thinking that law of economics should govern connectivity to all". It brings together a multi-layer resource pooling of communication technologies at several levels to support benevolence in the Internet. One of the proposed levels of resource pooling involves better netwo...
Article
Utilizing mobile devices for gaining a better understanding of one’s surrounding, physiological state and overall behavior has been argued for in many previous works. Despite the increasing usage of mobile devices for research in this space, few platforms developed are readily available for supporting the wider research community. This paper presen...
Conference Paper
Universal access to Internet is crucial. Several initiatives have recently emerged to enable wider access to the Internet. Public Access WiFi Service (PAWS) enables free Internet access to all and is based on Lowest Cost Denominator Networking (LCDNet) -- a set of network techniques that enable users to share their home broadband network with the p...
Conference Paper
Lowest Cost Denominator Networking (LCDnet) envisions "breaking the mould of thinking that law of economics should govern connectivity to all". It brings together a multi-layer resource pooling of Internet technologies at several levels to support benevolence in the Internet. One of the proposed levels of resource pooling involves better network an...
Article
Full-text available
Enabling universal Internet access is one of the key issues that is currently being addressed globally. However the existing Internet architecture is seriously challenged to ensure universal service provisioning. This technical report puts forth our vision to make the Internet more accessible by architecting a universal communication architectural...
Conference Paper
In this paper, we revisit digital fountains as an information theoretic approach for disseminating information. We embed this approach, however, into the architectural context of information centric networking (ICN). We discuss how our information-centric network architecture enables efficient information dissemination through fountain coding and w...
Article
Full-text available
Information-centric networking has been touted as an al-ternative to the current Internet architecture. Our work addresses a crucial part of such a proposal, namely the design of a network node within an information-centric networking architecture. Special attention is given in providing a platform for development and experimentation in an emerging...
Article
Future information-oriented Internet architectures are expected to effectively support mobility. PSIRP, an EU FP7 research project, designed, prototyped, and investigated a clean-slate architecture for the future Internet based on the publish-subscribe paradigm. PURSUIT, another EU FP7 research project, is further developing this architecture, whic...
Conference Paper
Information-centric networking (ICN)1 is a new communication paradigm, which has been increasingly attracting attention in the wider research community. Its focus on information provides an alternative to the endpoint-centric model of today's Internet. While architectural foundations for ICN have been laid out in many ongoing efforts, solutions to...
Conference Paper
Full-text available
Lifestyle management area has been developing over the past years due to an increasing individual and societal need for self-awareness. Technologies play an essential role as they can capture, interpret, and visualize various aspects of users' lives. One of the challenges introduced by capturing large and varied amounts of data lays in organizing a...
Conference Paper
Our demonstration showcases advances in lifestyle management, focusing on providing a platform able to record various information, process it and present it to end users through a novel story-inspired interface. We briefly outline the scope of this work and the envisioned benefits to the healthcare area before describing what we demonstrate and how...
Conference Paper
Information-centric networking (ICN) has been touted as an alternative to the current Internet architecture by several research groups. So far little has been done towards the implementation of ICN network stacks and their evaluation in realistic ICN deployments. In this paper we describe Blackadder, a sophisticated prototype of our ICN architectur...
Conference Paper
Shifting the communication paradigm of the internetworking layer from endpoints to information has been the focus for a variety of research efforts. Optimized dissemination of information within transient communication relationships of endpoints is the main promise of such efforts. Efficient replication of information is key to delivering on this p...
Conference Paper
Large-scale information distribution has been increasingly attracting attention, be it through uptake in new services or through recent research efforts in fields like information-centric networking. The core issue to be addressed is the more efficient distribution of information to a large set of receivers. Avoiding state in the forwarding element...
Article
“Data is the new soil” – this statement by David McCandless focuses in a single sentence the importance of information in our lives. It outlines the importance of obtaining information, inferring new knowledge and enriching our knowledge through the increasing availability and reachability of massive data sets. Many arguments have been presented as...
Conference Paper
Full-text available
The areas of Software-Defined Networking (SDN) and Information-Centric Networking (ICN) have gained increasing attention in the wider research community, while gaining credibility through corporate interest and investment. With the promise of SDN to simplify the deployment of alternative network architectures, the question arises how SDN and ICN co...
Article
Information-centric networking has been attracting increasing attention within the networking community. Technological solutions as well as entire architectures have been proposed with subtle but seemingly important differences. In this article, we define a set of design tenets for an information-centric architecture together with a demonstration o...
Article
The late noughties have seen an influx of work in different scientific disciplines, all addressing the question of 'design' and 'architecture'. It is a battle between those advocating the theory of 'emergent properties' and others who strive for a 'theory for 'architecture'. We provide a particular insight into this battle, represented in the form...
Conference Paper
Full-text available
Information-Centric Networking (ICN) has increasingly been attracting attention by the research community. In ICN the center of attention becomes the information itself and not the endpoints as in today's IP networks. In this demonstration we present applications that we developed as proof of concepts for our ICN approach. A video streaming as well...
Article
Full-text available
Can the Internet be redesigned to reduce future conflicts? The Internet's underlying architecture, Internet Protocol (IP), was introduced in 1974. Since then many ideas have been put forward about how to update and improve it. One branch of these is called "Information-Centric Networking" (ICN). Trossen and Kostopoulos note how ICN could improve th...
Conference Paper
Full-text available
Current Future Internet (FI) research brings out the trend of designing information-oriented networks, in contrast to the current host-centric Internet. Information-centric Networking (ICN) focuses on finding and transmitting information to end-users, instead of connecting end hosts that exchange data. The key concepts of ICN are expected to have s...
Article
The Internet’s origin is that of providing basic communication to the many people using it for services like voice, video and basic access to important information. This view of the Internet has found entry in its most central aspect of the architecture, the role of endpoints in a communication. The mental model of two entities conversing for a cer...