Sarwar, Golam and Boreli, Roksana and Lochin, Emmanuel and Mifdaoui, Ahlem Performance evaluation of multipath transport protocol in heterogeneous network environments. (2012) In: IEEE 12th International Symposium on Communications and Information Technologies (ISCIT), 02-05 Oct 2012, Gold Coast, Australia .
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Official URL: http://dx.doi.org/10.1109/ISCIT.2012.6381048
Performance of multipath transport protocols is known to be sensitive to path asymmetry. The difference between each path in terms of bandwidth, delay and packet loss has a potential to significantly decrease the overall performance of a data flow carried over multiple asymmetric paths. In this paper, we evaluate and analyse reliable data transfer in Concurrent Multipath Transfer extension of Stream Control Transport Protocol (CMT-SCTP) under various conditions of network asymmetry, with a focus on the use case where 3G and Wi-Fi networks are simultaneously available. We identify various causes of performance degradation, review the impact of CMT-SACK extension under path asymmetry and show that the total achievable goodput of a reliable in-order data flow over multiple heterogeneous paths is ruled by the characteristics of the worst path as perceived by the transport protocol. To support our study, we derive a simple analytical model of the receiver window blocking and validate it via simulation.
|Item Type:||Conference or Workshop Item (Paper)|
|Audience (conference):||International conference proceedings|
|Institution:||Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE|
Other partners > National ICT Australia - NICTA (AUSTRALIA)
Département de Mathématiques, Informatique, Automatique - DMIA (Toulouse, France) - Modelisation et Architecture des Systèmes - MARS
|Deposited By:||Emmanuel Lochin|
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