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Title:
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SUPPORTING MOBILE E-LEARNING APPLICATION RELIABILITY THROUGH MULTI-HOMING |
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Author(s):
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Sheila Fallon , Paul Jacob , Yuansong Qiao , Enda Fallon , Austin Hanley |
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ISBN:
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978-972-8924-36-2 |
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Editors:
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Inmaculada Arnedillo Sánchez (series editors: Piet Kommers, Pedro Isaías and Nian-Shing Chen) |
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Year:
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2007 |
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Edition:
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Single |
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Keywords:
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SCTP, Multi-Homing, HandOver, WLAN |
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Type:
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Full Paper |
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First Page:
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49 |
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Last Page:
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56 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Multi-homing technologies enable a communication session between a number of hosts to be transparently implemented
over multiple underlying physical networks simultaneously. Increasingly mobile devices are supporting a hybrid of
underlying physical networks; an example of such a device is the Nokia 9500 Communicator which supports mobile
network access through GPRS and Wireless LAN access through 802.11b. As the physical capabilities of devices tend
towards hybrid network support, mobile application developers are adopting multi-homing technologies in order to
overcome the limitations of mobile environments in which frequent disconnections and fluctuating bandwidths are likely.
In such an environment the path redundancy offered by multi-homed protocols has a clear attraction. This paper
investigates the use of the multi-homed transport layer Stream Control Transmission Protocol (SCTP) in the development
of E-learning applications. It describes and evaluates a test implementation which simulates the use of a media streaming
E-Learning application in a large classroom in which wireless coverage is achieved through multiple overlapping WLAN
access points. Finally results are presented which illustrate the ability of SCTP to maintain a quality end user experience
in the case of catastrophic network failure. |
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