Abstract
The networking capabilities of mobile devices have increased dramatically in recent years. A wide range of mobile devices now provide the capability to simultaneously connect to multiple underlying networks. The increasingly ubiquitous deployment of WLAN technologies, particularly in urban and campus scenarios, has allowed mobile developers to enhance their application functionality based on the characteristics of wireless rather than mobile networks. This increase in capability comes at a cost however as the provision of seamless mobility for wireless networks remains an open research area. Multi-homing technologies which exploit multiple underlying networks in an application transparent manner, have the potential to overcome many of the issues relating to wireless network mobility. There are a number of mechanisms through which a multi-homed session can be achieved. This paper compares two approaches to multi-homing support; transport layer multi-homing utilising the Stream Control Transmission Protocol (SCTP) and application layer multi-homing utilising the Session Initiation Protocol (SIP). Multimedia streaming experimental evaluations are undertaken which compare the performance of SCTP against a number of increasingly aggressive SIP based handover strategies in response to a path failure. Results indicate that the transport layer SCTP based strategy has significantly better performance within the handover period than the application layer SIP based strategies achieving up to 22.5% better performance than the SIP based strategies.
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Stannett, K., Sutkevicius, A., Fallon, E., Qiao, Y., Jacob, P., Hanley, A. (2010). Path Failure Effects on Video Quality in Multihomed Environments. In: Sobh, T., Elleithy, K., Mahmood, A. (eds) Novel Algorithms and Techniques in Telecommunications and Networking. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3662-9_13
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DOI: https://doi.org/10.1007/978-90-481-3662-9_13
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