Transport level mechanisms for bandwidth aggregation on mobile hosts
- 25 August 2005
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 165-171
- https://doi.org/10.1109/icnp.2001.992896
Abstract
Present mobile computing does not support the simultaneous use of multiple heterogeneous network interfaces for a single transport layer connection. In this paper, we describe a solution for channel aggregation at the transport layer, which provides increased bandwidth to mobile nodes. We present R-MTP (Reliable Multiplexing Transport Protocol), a rate-based reliable transport protocol capable of multiplexing data from a single application data stream across multiple network interfaces. Due to the lossy nature of wireless links in mobile environments, R-MTP tracks packet interarrival time for discrimination between congestion-based and transmission-based losses as well as better bandwidth estimation. The challenges to such a reliable protocol lie in the coordination of packets across streams with varying channel characteristics. Our experimental results validate R-MTP's bandwidth estimation and loss characterization techniques. Successful bandwidth aggregation is demonstrated in ideal and lossy environmentsKeywords
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