44documents trouvés
A packet error recovery scheme for vertical handovers mobility management protocols
P.TOURNOUX, E.LOCHIN, H.PETANDER, J.LACAN
OLC, NICTA
Manifestation avec acte : International Conference on Mobile and Ubiquitous Systems: Computing Networking and Services (MobiQuitous 2010), Sydney (Australie), 6-9 Décembre 2010, 12p. , N° 10737
Lien : http://hal.archives-ouvertes.fr/hal-00582606/fr/
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Abstract
Mobile devices are connecting to the Internet through an increasingly heterogeneous network environment. This connectivity via multiple types of wireless networks allows the mobile devices to take advantage of the high speed and the low cost of wireless local area networks and the large coverage of wireless wide area networks. In this context, we propose a new handoff framework for switching seamlessly between the different network technologies by taking advantage of the temporary availability of both the old and the new network technology through the use of an "on the fly" erasure coding method. The goal is to demonstrate that our framework, based on a real implementation of such coding scheme, 1) allows the application to achieve higher goodput rate compared to existing bicasting proposals and other erasure coding schemes; 2) is easy to configure and as a result 3) is a perfect candidate to ensure the reliability of vertical handovers mobility management protocols. In this paper, we present the implementation of such framework and show that our proposal allows to maintain the TCP goodput(with a negligible transmission overhead) while providing in a timely manner a full reliability in challenged conditions.
Promoting the use of reliable rate-based transport protocols: the Chameleon protocol
E.LOCHIN, G.JOURJON, S.ARDON, P.SENAC
OLC, NICTA
Revue Scientifique : International Journal of Internet Protocol Technology (IJIPT), Vol.5, N°4, pp.175-189, Octobre 2010 , N° 10929
Lien : http://hal.archives-ouvertes.fr/hal-00582605/fr/
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Abstract
Rate-based congestion control, such as TFRC, has not been designed to enable reliability. Indeed, the birth of TFRC protocol has resulted from the need for a congestion-controlled transport protocol in order to carry multimedia traffic. However, certain applications still prefer the use of UDP in order to implement their own congestion control on top of it. The present contribution proposes to design and validate a reliable rate-based protocol based on the combined use of TFRC, SACK and an adapted flow control. We argue that rate-based congestion control is a perfect alternative to window-based congestion control as most of today applications need to interact with the transport layer and should not be only limited to unreliable services. In this paper, we detail the implementation of a reliable rate-based protocol named Chameleon and bring out to the networking community an ns-2 implementation for evaluation purpose.
Safetynet version 2, a packet error recovery architecture for vertical handoffs
H.PETANDER, E.LOCHIN
NICTA, OLC
Manifestation avec acte : International ICST Conference on Mobile Networks and Management (ICST MONAMI 2010), Santander (Espagne), 22-24 Septembre 2010, 9p. , N° 10928
Lien : http://hal.archives-ouvertes.fr/hal-00582607/fr/
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Abstract
Mobile devices are connecting to the Internet through an increasingly heterogeneous network environment. This connectivity via multiple types of wireless networks allows the mobile devices to take advantage of the high speed and the low cost of wireless local area networks and the large coverage of wireless wide area networks. To maximize the benefits from these complementing characteristics, the mobile devices need to be able to switch seamlessly between the different network types. However, the switch between the technologies, also known as a vertical handoff, often results in significant packet loss and degradation of connectivity due to handoff delay and also increased packet loss rate on the border of the coverage area of the networks. In our previous work, we have proposed an inter technology mobility management architecture which addresses the packet losses using selective resending of packets lost during the handoff period. In this paper, we extend the architecture to address packet losses due to wireless errors more efficiently by taking advantage of erasure codes to form redundancy packets. We propose to send these redundancy packets over both links. We show that this proposal reduces both the chances of packet loss and the buffering requirements of the original Safetynet scheme
Robust Streaming in Delay Tolerant Networks
P.TOURNOUX, E.LOCHIN, J.LEGUAY, J.LACAN
OLC, Thales
Manifestation avec acte : IEEE International Conference on Communications (ICC 2010), Cape Town (Afrique du Sud), 23-27 Mai 2010, 5p. , N° 10019
Lien : http://hal.archives-ouvertes.fr/hal-00449936/fr/
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122173Transport congestion events detection (TCED): towards decorrelating congestion detection from TCP
P.ANELLI, E.LOCHIN, F.HARIVELO, D.LOPEZ PACHECO
LIM, OLC
Manifestation avec acte : ACM Symposium on Applied Computing (SAC 2010), Lausanne (Suisse), 22-26 Mars 2010, 7p. , N° 10032
Lien : http://hal.archives-ouvertes.fr/hal-00448524/fr/
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121995STAMP: SMTP server topological analysis by message headers parsing
E.LOCHIN
OLC
Manifestation avec acte : IEEE Consumer Communications & Networking Conference (CCNC 2010), Las Vegas (USA), 9-12 Janvier 2010, 2p. , N° 10896
Lien : http://hal.archives-ouvertes.fr/hal-00421935/fr/
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Abstract
This paper presents STAMP: a tool to analyse SMTP servers overlay topology. STAMP builds a weighted and oriented graph from an email database, an email log or just a simple email header allowing a post-analysis of the SMTP overlay structure and the identification of the paths used by an email. The objective of this tool is twofold. STAMP allows to automatically perform an analysis of the SMTP topology for debugging (e.g, message delay, emails loop, ...) and for metrology purposes. While several traceroute-like measurements projects try to map the Internet, to the best of our knowledge, no tool allows to drive an analysis of the SMTP overlay network. Thus, the goal of the resulting graph is to develop methods (from graph theory, statistical analysis, ...) to identify relaying problems. We aim to explore the impact of IP network problems over emails delivery (and respectively: emails' traffic over IP networks) in conjunction with IP measurements driven synchronously. In the present paper, we introduce the design and the measurement methodology of the STAMP software and as second contribution, bring out to the networking community the tool and some measurements databases.
On-the-Fly Coding for Real-Time Applications
P.TOURNOUX, A.BOUABDALLAH, J.LACAN, E.LOCHIN
OLC
Manifestation avec acte : International Conference on Multimedia (ACM 2009), Beijing (Chine), 19-23 Octobre 2009, pp.889-892 , N° 09865
Lien : http://hal.archives-ouvertes.fr/hal-00448443/fr/
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120393Une méthode statistique d'estimation de la congestion d'un réseau
R.DIANA, E.LOCHIN, P.ANELLI
ISAE, OLC, LIM
Manifestation avec acte : 14 ème Colloque Francophone sur l'Ingéniérie des Protocoles - CFIP 2009, Strasbourg (France), 12-15 Octobre 2009 , N° 09772
Lien : http://hal.archives-ouvertes.fr/inria-00417794/fr/
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120012Une méthode statistique d'estimation de la congestion d'un réseau
DREMI, E.LOCHIN, P.ANELLI
UPS, OLC, LIM
Manifestation avec acte : Colloque Francophone sur l'Ingénierie des protocoles (CFIP'2009), Strasbourg (France), 12-15 Octobre 2009, pp.37-48 , N° 09665
Lien : http://hal.archives-ouvertes.fr/inria-00417794/fr/
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119476Tetrys : Un mécanisme de fiabilisation polyvalent
P.TOURNOUX, A.BOUABDALLAH, E.LOCHIN, J.LACAN
OLC
Manifestation avec acte : Colloque Francophone sur l'Ingénierie des protocoles (CFIP'2009), Strasbourg (France), 12-15 Octobre 2009 , N° 09664
Lien : http://hal.archives-ouvertes.fr/inria-00419490/fr/
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