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Cross-Layer Multipath Transmission of Elastic and Streaming Traffic over Heterogeneous Wireless Networks and Its Performance Analysis

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Quality, Reliability, Security and Robustness in Heterogeneous Networks (QShine 2010)


Next-generation wireless networks are expected to be heterogeneous by integrating multiple broadband access technologies. Popular wireless devices become equipped with various network interfaces. Multihoming support can be enabled to allow for multiple simultaneous associations with heterogeneous networks. Taking advantage of multihoming capability, we investigate multipath transmission of elastic and streaming traffic over heterogeneous wireless networks. A new flow splitting and multipath transmission scheme is proposed by exploiting cross-layer information of bulk data and video streams. The heavy-tailedness of elastic flow size is mitigated by balancing the traffic load, while the large bandwidth requirement of streaming flows is satisfied by aggregating fractional bandwidth available in multiple networks. Based on the leaky bucket algorithm and a nearly decomposable Markov process, the flow-level performance is evaluated in terms of flow blocking probabilities and data loss probability. Also, we analyze the fine-granular packet-level performance with respect to transfer delay using a batch arrival queueing model. Numerical results demonstrate the performance gain of the multipath transmission scheme.

This research was supported by a Discover Grant from Natural Sciences and Engineering Research Council (NSERC) of Canada and a Start-up Grant from New Brunswick Innovation Foundation (NBIF).

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© 2012 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering

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Song, W. (2012). Cross-Layer Multipath Transmission of Elastic and Streaming Traffic over Heterogeneous Wireless Networks and Its Performance Analysis. In: Zhang, X., Qiao, D. (eds) Quality, Reliability, Security and Robustness in Heterogeneous Networks. QShine 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 74. Springer, Berlin, Heidelberg.

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  • Print ISBN: 978-3-642-29221-7

  • Online ISBN: 978-3-642-29222-4

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