DCNET 2015 Abstracts


Full Papers
Paper Nr: 1
Title:

Towards a Real Application-aware Network

Authors:

Leo Caldarola, Amine Choukir, Davide Cuda, Marco Dondero, Domenico Ficara, Roberto Muccifora, Libor Polčák and Antonio Trifilo

Abstract: As the number of network services and applications increases, each one of them showing different requirements in terms of bandwidth and latency, it becomes critical for network operators to identify these applications. This paper builds up on the principles of Software Defined Networking, proposing a novel Application- Aware Network architecture, which is able to directly handle applications and their requirements; abstracting the complexity of dealing with network flows. Since metadata about applications are signalled either directly from the endpoints or from application managers, the information is precise and the approach can also be used for encrypted traffic. The benefits of the Application-Aware Approach for the network flow management is demonstrated in real network by two proof-of-concept services: aimed on quality of experience and load balancing.

Paper Nr: 2
Title:

Speaking in Tongues - Practical Evaluation of TLS Cipher Suites Compatibility

Authors:

Manuel Koschuch, Taro Fruhwirth, Alexander Glaser, Silvie Schmidt and Matthias Hudler

Abstract: The Transport Layer Security (TLS) protocol is still the de-facto standard for secure network connections over an insecure medium like the internet. But its flexibility concerning the algorithms used for securing a channel between two parties can also be a weakness, due to the possible agreement on insecure ciphers. In this work we examine an existing white paper (Applied Crypto Hardening) giving recommendations on how to securely configure SSL/TLS connections with regard to the practical feasibility of these recommendations. In addition we propose an additional configuration set with the aim of increasing compatibility as well as security. We also developed a small Cipher Negotiation Crawler (CiNeg) to test TLS-handshakes using given cipher configurations with a supplied list of websites and show its practical usability.

Posters
Paper Nr: 5
Title:

Service Forwarding Label for Network Function Virtualization and Application-centric Traffic Steering

Authors:

Changcheng Huang and Jiafeng Zhu

Abstract: New services such as network virtualization, service chaining, and application-centric traffic steering bring new opportunities for network providers and service providers. Existing Internet architecture is suffering from the so-called ossification problem, which makes it difficult to support new applications. Software Defined Network (SDN) is becoming a new paradigm for both WAN and enterprise networks. By separating control and data planes, SDN allows network providers to sell new services without changing their physical switches. While SDN is poised to support new services, it is still in development stage. Mechanisms supporting new services are still missing. In this paper, we propose a new application driven mechanism called Service Forwarding Label (SFL) which can be used as a uniform label to differentiate various services and forward packets based on different service requirements. Compared with existing solutions such as VXLAN, our SFL approach introduces less overhead and supports more new services.

Paper Nr: 7
Title:

Indoor Localization of the Points of Interest using RO-SLAM

Authors:

Yamnia Rodríguez Esteves, Julio Barbancho Concejero and Antidio Viguria Jiménez

Abstract: This paper describes an indoor localization system based on RO-SLAM technique, which has been led to experimentation. The proposed system has been considered to have low power consumption. The nodes of the network are based on the well-known architecture TelosB. A distance estimation study has been developed in order to determine the relationship between radio power signal strength in a radio link and distance between nodes. This relationship has a high variability and given its importance for successful tracking, much of this work has been devoted to its study. This system could be applied as a usefull solution for localization in a warehouse, where GPS-based system does not work. Based on the results obtained, this system is deemed as feasible because the motes have been localized with an acceptable error (1.2 m) under real conditions.

Paper Nr: 8
Title:

Routing in Cognitive Wireless Mesh Networks - An Intelligent Framework

Authors:

Nadhir Ben Halima and Mohammad Ayoub Khan

Abstract: Wireless Networks are limited in energy and resources, are subject to development constraints. The difficulties are such as the increasing RF spectrum saturation and efficient path discovery. The Cognitive Wireless Networks, leaning on a form communication model, develop new strategies to mitigate the inefficient use of the spectrum. The first application of the concept of cognitivity to communications was focused on exploiting the dynamics in spectrum utilization (cognitive radio), nevertheless network-wide deployment of such concepts is foreseen in the framework of the “cognitive networks”, where the cognitive process will be employed to support end-to-end network-wide goals such as QoS. This paper presents a state-of-art of cognitive networks and proposes a framework, architecture for cognitive networks. This paper will also discuss mechanisms for self-adaptation, learning and evolutionary functionalities to support users/applications end-to-end goals.