A packet error recovery scheme for vertical
handovers mobility management protocols
Pierre-Ugo Tournoux1,2, Emmanuel Lochin1,2, Henrik Petander3, J´erˆome
Lacan4
1 CNRS ; LAAS ; 7 avenue du colonel Roche, F-31077 Toulouse, France
2 Universit´e de Toulouse ; UPS, INSA, INP, ISAE ; LAAS ; F-31077 Toulouse, France
3 NICTA, Australian Technology Park, Eveleigh, NSW, Australia
4 ISAE ; 10 av. Edouard Belin - BP 54032 - 31055 Toulouse Cedex 4, France
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 net-
works 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 pro-
tocols. 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.
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