Towards a Versatile Transport Protocol

Guillaume Jourjon (1) , Emmanuel Lochin (1) , Patrick Sénac (2, 3)

1 NICTA - National ICT Australia [Sydney]
2 LAAS - Laboratoire d'analyse et d'architecture des systèmes
3 DMIA - Département de Mathématiques, Informatique, Automatique

In the context of a reconfigurable transport protocol, this paper introduces two protocol instances based on the composition and specialisation of the TFRC congestion control and Selective Acknowledgment mechanisms. The two resulting transport architectures lead respectively to the QTPAF protocol, specifically designed to operate over QoS-enabled networks and the QTP light protocol, specifically designed for resource-limited end systems connected to powerful servers. QTPAF combines QoS-aware TFRC congestion control with full reliability to provide a transport service similar to TCP but additionally taking into account network-level band-width reservations. QTP light proposes a modification of TFRC that shifts from the receiver to the sender the complexity of the loss rate estimation mechanism. This modification allows to alleviate the processing and communication load of "light" resource limited mobile receivers. We present the concept of these protocols and their adaptation in the EuQoS European project framework.

Mots clés: mobile devices; TFRC; QoS-enabled networks; SACK

Domaines: Réseaux et télécommunications [cs.NI]

Guillaume Jourjon, Emmanuel Lochin, Patrick Sénac. Towards a Versatile Transport Protocol. the 2006 ACM CoNEXT conference, Dec 2006, Lisboa, Portugal. pp.1, ⟨10.1145/1368436.1368465⟩. ⟨hal-02871176⟩