arXiv subjects

Janne Riihijärvi

Publications and source records attributed to Janne Riihijärvi.

4 recordsLinked to original sources

arXiv2018

fCDN: A Flexible and Efficient CDN Infrastructure without DNS Redirection or Content Reflection

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-based mapping and content reflection. Instead, requests to/from the CDN are treated as service transactions in the network, which utilises a routing function embraced from emerging research in Information-Centric Networks (ICN) to route edge-to-edge transactions to the true nearest service point. The same function is utilized to establish path-based flows over a fast forwarding substrate; thereby, eliminating the need for IP routing between service points within a single domain, and potentially at peering points with other domains. We model our architecture and formulate the resource placement problem as a variance of the K-center problem. To address the problem, we propose a greedy algorithm, Swing, that balances the placement of service points between highly and poorly connected nodes. We evaluate the efficiency of our architecture in utilising the CDN and network resources through Monte Carlo simulations that explore a range of K values. Moreover, we compare the goodness of the placement solutions provided by Swing with those provided by Largest First and Closest First Algorithms. Evaluation results show the superiority of our fCDN solution in reducing the edge-to-edge path length and the required network resources.

cs.NI↗

arXiv2018

Service-based Fog architecture without DNS redirection

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 communication tasks at hand. In this article, we propose a novel Fog Computing architecture that translates IoT communications into service transactions, provisioned over a fast and efficient networking fabric. Service matching is provided by a network function designed using principles from Information-Centric Networks (ICN) research, routing edge requests directly to the nearest service points without expensive and slow DNS redirects. The proposed Fog substrate reduces the networking complexity and overhead while being architecturally simple. We evaluate the architecture through a comparison with how Fog might be established over existing networking fabrics and quantify the performance benefits. Evaluation results illustrate the superiority of the proposed architecture in reducing the required backhaul capacity and the path length.

cs.NI↗

arXiv2017

Analysis of Proportional Fair Scheduling Under Bursty On-Off Traffic

Proportional fair scheduling (PFS) has been adopted as a standard solution for fair resource allocation in modern wireless cellular networks. With the emergence of heterogeneous networks with widely varying user loads, it is of great importance to characterize the performance of PFS under bursty traffic, which is the case in most wireless streaming and data transfer services. In this letter, we provide the first analytical solution to the performance of PFS under bursty on-off traffic load. We use the Gaussian approximation model to derive a closed-form expression of the achievable user data rates. In order to further improve the accuracy of our baseline analytical solution for multi-cell networks, we design a hybrid approximation by employing multi-interference analysis. The simulation results verify that our model guarantees extremely low data rate estimation error, which is further insensitive to changes in session duration, traffic load and user density.

cs.IT↗

arXiv2015

IP Over ICN - The Better IP? An Unusual Take on Information-Centric Networking

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 improve the performance of their IP-based services along many dimensions. Alongside the main motivation for our work, we present an early strawman architecture for such an IP-over-ICN proposition, which will ultimately be implemented and trialed in a recently started H2020 research effort.

cs.NI↗