Hannu Flinck

Hannu Flinck
Nokia · Bell Labs

About

76
Publications
16,779
Reads
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3,563
Citations
Additional affiliations
August 1996 - May 2007
Nokia
Position
  • Senior Research manager
August 1996 - May 2007
Nokia Research Center (NRC)
Position
  • Senior Research Manager

Publications

Publications (76)
Preprint
Full-text available
Given the indispensable need for a reliable network architecture to cope with 5G networks, 3GPP introduced a covet technology dubbed 5G Service Based Architecture (5G-SBA). Meanwhile, Multi-access Edge Computing (MEC) combined with SBA conveys a better experience to end-users by bringing application hosting from centralized data centers down to the...
Preprint
Full-text available
The use cases of the upcoming 5G mobile networks introduce new and complex user demands that will require support for fast reconfiguration of network resources. Software Defined Network (SDN) is a key technology that can address these requirements, as it decouples the control plane from the data plane of the network devices and logically centralize...
Article
5G and beyond mobile systems target a plethora of emerging industrial and entertainment verticals that incur extra overhead to the network. These verticals are characterized by vigorous, continuous, and conflicting requirements that make the desired system's mission strenuous and more challenging. These verticals, such as autonomous driving, will a...
Article
Massive Machine Type Communication (mMTC) has long been identified as a major vertical sector and enabler of the industry 4.0 technological evolution that will seamlessly ease the dynamics of machine-to-machine communications while leveraging 5G technology. To advance this concept, we have developed and tested an mMTC network slice called Megasense...
Article
Full-text available
Network slicing is a key enabler for providing new services to industry verticals. In order to enable network slice provisioning, it is important to study the network slice type allocation for different device types in a real industrial case. Furthermore, the costs of the required virtualization infrastructure need to be analyzed for various cloud...
Article
Network slicing is widely studied as an essential technological enabler for supporting diverse use case specific services through network virtualization. Industry verticals, consisting of diverse use cases requiring different network resources, are considered key customers for network slices. However, different approaches for network slice provisio...
Technical Report
Full-text available
The White Paper covers key areas related to 6G research from a technical, societal, policy and business perspective providing a vision for the future networks and services. In the coming decade, 6G will bring a new era in which billions of things, humans, connected vehicles, robots and drones will generate zettabytes of digital information. 6G will...
Article
This article provides an overview on extremely interactive and low-latency immersive services as well as the relevant industry and standardization activities. Immersive services immerse a viewer or the viewed digital objects into an environment that is either real, virtual, or a mixture of both. The applications are accordingly named virtual realit...
Article
Recent 5G trials have demonstrated the usefulness of the Network Slicing concept that delivers customizable services to new and under-serviced industry sectors. However, user mobility’s impact on the optimal resource allocation within and between slices deserves more attention. Slices and their dedicated resources should be offered where the servic...
Article
While the 5G network technology is maturing and the number of commercial deployments is growing, the focus of the networking community is shifting to services and service delivery. 5G networks are designed to be a common platform for very distinct services with different characteristics. Network Slicing has been developed to offer service isolation...
Article
5G system and beyond targets a large number of emerging applications and services that will create extra overhead on network traffic. These industrial verticals have aggressive, contentious, and conflicting requirements that make the network have an arduous mission for achieving the desired objectives. It is expected to get requirements with close...
Article
Full-text available
The post-pandemic future will offer tremendous opportunity and challenge from transformation of the human experience linking physical, digital and biological worlds: 6G should be based on a new architecture to fully realize the vision to connect the worlds. We explore several novel architecture concepts for the 6G era driven by a decomposition of t...
Article
The virtual resources of 5G networks are expected to scale and support migration to other locations within the substrate. In this context, a configuration for 5G network slices details the instantaneous mapping of the virtual resources across all slices on the substrate, and a feasible configuration satisfies the Service-Level Objectives (SLOs) wit...
Conference Paper
Given the indispensable need for a reliable network architecture to cope with 5G networks, 3GPP introduced a covet technology dubbed 5G Service Based Architecture (5G-SBA). Meanwhile, Multi-access Edge Computing (MEC) combined with SBA conveys a better experience to end-users by bringing application hosting from centralized data centers down to the...
Article
Full-text available
The need for faster and higher-capacity networks that can sustain modern, high-demanding applications has driven the development of 5G technology. Moreover, low-latency communication (1ms-10ms) is a key requirement of 5G systems. Multi-access Edge Computing (MEC) can be leveraged to attain the 5G objectives, since it allows the shift of part of ser...
Conference Paper
The next decade will bring exciting transformation in physical, digital and biological worlds. While requirements and use cases for Beyond 5G (B5G) are not fully clear at this time, an attempt at stratification of 5G evolution and B5G has been developed. Such stratification, i.e., decomposition into candidate technologies, will include technology s...
Article
Network slicing offers numerous benefits, particularly the ability to deliver highly customizable services to new industry sectors that have been unserved or inadequately served by current mobile network operators. Among new industry use cases that are targeted by the fifth generation (5G) mobile systems, there exist scenarios that go beyond what t...
Article
Full-text available
Network Slicing (NS) is a key enabler of the upcoming 5G and beyond system, leveraging on both Network Function Virtualization (NFV) and Software Defined Networking (SDN), NS will enable a flexible deployment of Network Functions (NFs) belonging to multiple Service Function Chains (SFC) over various administrative and technological domains. Our nov...
Article
Full-text available
Network slicing has been identified as the backbone of the rapidly evolving 5G technology. However, as its consolidation and standardization progress, there are no literatures that comprehensively discuss its key principles, enablers and research challenges. This paper elaborates network slicing from an end-to-end perspective detailing its historic...
Article
Many ongoing research activities relevant to 5G mobile systems concern the virtualization of the mobile core network, including the Evolved Packet Core (EPC) elements, aiming for system scalability, elasticity, flexibility, and cost-efficiency. Virtual EPC (vEPC)/5G Core will principally rely on some key technologies such as Network Function Virtua...
Article
This paper introduces a Content Delivery Network as a Service (CDNaaS) platform that allows dynamic deployment and life-cycle management of virtual Content Delivery Network (CDN) slices running across multiple administrative cloud domains. The CDN slice consists of four Virtual Network Function (VNF) types, namely virtual transcoders, virtual strea...
Article
One of the key features of next-generation mobile networks is the ability to satisfy the requirements coming from different verticals. For satisfying these requirements, 5G networks will need to dynamically reconfigure the deployment of the network functions. However, the current deployments of mobile networks are experiencing difficulties in exhib...
Article
Multi-access Edge Computing (MEC) is an emerging ecosystem, which aims at converging telecommunication and IT services, providing a cloud computing platform at the edge of the Radio Access Network (RAN). MEC offers storage and computational resources at the edge, reducing latency for mobile end users and utilizing more efficiently the mobile backha...
Article
5G mobile systems are expected to meet different strict requirements beyond the traditional operator use cases. Effectively, to accommodate needs of new industry segments such as healthcare and manufacturing, 5G systems need to accommodate elasticity, flexibility, dynamicity, scalability, manageability, agility, and customization along with differe...
Conference Paper
Edge Cloud infrastructure will play a key role in extending the range of supported real-time cloud applications, by guaranteeing extremely fast response times. However, user mobility requires fast relocation of service instances, which represents an open challenge for resource-constrained cloudlets interconnected by high-latency and low-bandwidth l...
Conference Paper
Extending cloud infrastructure to the Network Edge represents a breakthrough to support delay-sensitive applications in next 5G cellular systems. In this context, to enable ultra-short response times, fast relocation of service instances between edge nodes is required to cope with user mobility. To face this issue, proactive service replication is...
Article
This article proposes an approach to enhance users' experience of video streaming in the context of smart cities. The proposed approach relies on the concept of MEC as a key factor in enhancing QoS. It sustains QoS by ensuring that applications/services follow the mobility of users, realizing the "Follow Me Edge" concept. The proposed scheme enforc...
Article
Mobile Edge Computing (MEC) will play a key role in next-generation mobile networks to extend the range of supported delay-sensitive applications. Furthermore, an increasing attention is paid to provide user-centric services, to better address the strict requirements of novel immersive applications. In this scenario, MEC solutions need to efficient...
Conference Paper
Mobile edge computing offers distributed cloud-computing capabilities and IT service environment to application developers and content providers to take advantage the close proximity to the end user and their devices. It opens up a huge innovation potential also for new verticals among them Internet of Things type of applications. Application orche...
Conference Paper
Wi-Fi networks were one of the first use-cases for Software-defined networking (SDN). However, to deploy a software-defined Wi-Fi network today, one has to rely on research prototypes with availability, documentation, hardware requirements, and scalability issues. To alleviate this situation, we demonstrate two simple techniques to bring SDN functi...
Article
Purpose This paper models the cost efficiency of service function chaining (SFC) in software-defined LTE networks and compares it with traditional LTE networks. Design/methodology/approach Both the capital expenditure (CAPEX) and operational expenditure (OPEX) of the SFC are quantified using an average Finnish mobile network in 2015 as a reference...
Conference Paper
This paper presents mechanisms that have the potential for dramatically reducing end-to-end delay in mobile networks. We introduce a simple algorithm for dynamic user plane gateway placement in a mobile network. The proposed algorithm is able to optimize gateway location according to given targets, e.g., path latency or bottleneck link load. We sha...
Article
Full-text available
The Internet and its associated global routing tables are growing at an alarming rate. Will the current routing infrastructure be able to scale itself to sustain such growth? Over the past several years, many efforts have been made to resolve this important issue. This paper offers a novel solution to this serious problem by proposing and presentin...
Conference Paper
Offloading mobile traffic to WiFi networks (WiFi Offloading) is a cost-effective technique to alleviate the pressure on mobile networks for meeting the surge of data capacity demand. However, most existing proposals from standards developing organizations (SDOs) and research communities are facing a deployment dilemma, either due to overlooking dev...
Conference Paper
This demonstration presents a novel software defined platform for achieving collaborative and energy-aware WiFi offloading. The platform consists of an extensible central controller, programmable offloading agents, and offloading extensions on mobile devices. Driven by our extensive measurements of energy consumption on smartphones, we propose an e...
Conference Paper
A state space analysis of the variables used by the network functions that serve the mobile core provides insights on the multiple roles portrayed by each network function. These insights can be leveraged to modularize and subsequently refactor the network functions that are expected to serve the fifth generation mobile networks (5G). In this paper...
Article
Full-text available
We show how a disruptive force in mobile computing can be created by extending today???s unmodified cloud to a second level consisting of self-managed data centers with no hard state called cloudlets. These are located at the edge of the Internet, just one wireless hop away from associated mobile devices. By leveraging lowlatency offload, cloudlets...
Conference Paper
The mobile core is currently served by gateways having a convoluted control plane and data plane. We abstract and modularize the key functions of these gateways, and separate the control and data plane in nwEPC, an open source implementation of the mobile access network gateways. We use our custom load balancer for the control plane to demonstrate...
Patent
Full-text available
A method and related apparatus determine, at a serving entity, whether a memory resource of the serving entity is insufficient for storing service provision-related information required for service provision from the serving entity to a served entity. Then the serving entity transmits, after the determination, the service provision-related informat...
Article
Future cellular networks are faced with the challenge of coping with significant traffic growth without increasing operating costs. Network virtualization and Software Defined Networking (SDN) are emerging solutions for fine-grained control and management of networks. In this article, we present a new dynamic tunnel switching technique for SDN-base...
Article
In recent years we have seen a fast change in the networking industry: leading by the Software Defined Networking (SDN) paradigm that separates the control plane from the data plane to enable programmability and centralized control of the network infrastructure, the SDN design not only simplifies the network management but also accelerates the inno...
Article
Full-text available
Over the last decade, we have witnessed the tremendous growth of peer-to-peer (P2P) file sharing traffic. Built as overlays on top of the existing Internet infrastructure, P2P applications have little or no knowledge of the underlying network topology, generating huge amounts of " unwanted " inter-domain traffic. Bandwidth-hungry P2P applications c...
Article
It is generally recognized that the current routing scheme of Internet suffers from serious scalability problems. In this paper, we work with the abstract but ‘Internet-like’ network model consisting of an infinite-variance power-law random graph (IVPLRG). We adopt the idea of a routing scheme proposed by Carmi, Cohen and Dolev (C-C-D). The scheme...
Article
Full-text available
The enormous growth of bandwidth needs and the constant revenues of the carriers at the same time require the introduction of packet technologies in transport networks. The extension of Ethernet with carrier-grade features is a promising approach to provide necessary characteristics like scalability, quality of service, and operations, administrati...
Conference Paper
Privacy when using IP communication has become an important problem. It is a challenging problem that spans multiple layers in the OSI reference model with various constant identifiers that can be profiled. This leads to user privacy concerns. Location Privacy, on the other hand, is primarily concerned with revealing a user’s identity as a function...
Article
The Ambient Networks project addresses the creation of innovative network solutions for mobile and wireless systems beyond 3G. They will enable scalable and affordable wireless networking while providing rich and easy to use communication services for all. The work is geared towards increasing competition and cooperation in an environment populated...
Patent
The invention provides a GeoIP resolving system (GIRS) which is able to resolve between the IP addresses and the geographic location of servers/hosts/access ports in a wide area network, in particular the internet. GIRS servers are provided which contain resolution tables indicating the correlation between IP addresses and geographic positions of s...
Patent
A lost packet recovery device, method and computer program for use in a VoIP system in which lost packets containing voice information are replaced using time domain interpolation techniques. These time domain interpolation techniques employ two different approaches to interpolate missing data packets. The first approach relies on time domain harmo...
Article
: This deliverable not only reports on the trials of service related control functions, but addresses the much broader scope of trials of all kind of control functionality required for the deployment of multimedia services in broadband network. Such general control functionality incorporates service related control functions (e.g. service navigatio...
Conference Paper
The Integrated Multimedia Project (IMMP) studies interactive multimedia services and network technologies, addressing both residential and business users, focusing on the overlaps and synergy between the two. For this purpose, IMMP has set up and conducted a considerable number of trials with varying user profiles, network technologies, middleware...
Article
Full-text available
Current and future applications make use of different technologies as voice, data, and video. Consequently network technologies need to support them. This paper gives a technical overview of different networking technologies, such as the Internet, ATM and different approaches of how to run IP on top of an ATM network, and assesses their potential t...
Article
Full-text available
: This paper gives a technical overview of different networking technologies, such as the Internet, ATM. It describes different approaches of how to run IP on top of an ATM network, and assesses their potential to be used as an integrated services network. Keyword List: ATM, IPv4, IPv6, RSVP, LANE, CLIP, NHRP, MPOA, Arequipa, IP-Switching, Tag Swit...
Conference Paper
Based on a hypothesis about the future of multimedia markets, the ACTS Integrated Multimedia Project (IMMP) set up a multimedia system model, which would be realisable during the lifetime of the project. Due to the constrains imposed by the markets, the application life cycle and that of the transport network differ greatly. Based on this fact a se...
Article
This document presents information objects and relationships needed for network resource management functions in the areas of Connection Management, Resource Configuration Management, Fault Management, and Accounting Management. The information model presented is independent of any specific functional architecture of the management functions. The i...
Book
This paper introduces a high throughput bus concept, named 'Frame Synchronized Ring' (FSR-bus). The bus is based on a ring topology, which is an economical way to construct an efficient interconnection network for high speed multiprocessor applications. The paper describes the bus structure, its timing arrangements, frame structure, medium access c...