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2006

XCP for shared-access multi-rate media

11 years 12 months ago
XCP for shared-access multi-rate media
The eXplicit Control Protocol (XCP) was developed to overcome some of the limitations of TCP, such as low utilization in high bandwidth delay product networks, unstable throughput, large queue build-up, and limited fairness. XCP, however, requires that each queue controller in a path knows the exact capacity of its link. In shared access media, e.g. IEEE 802.11, knowing the actual capacity of the channel is a difficult task. In this paper we propose modifications to the XCP algorithm that enable the utilization of XCP even when the capacity of a link is unknown. These modifications are validated through simulation. We also present the results of a comparison between the performance of the modified XCP and TCP, where XCP controlled flows result more stable, fairness increases, and the network delay becomes lower. In addition, as the bandwidth delay product increases, XCP is able to maintain near-maximum utilization while TCP decreases utilization. Categories and Subject Descriptors C.2...
Filipe Abrantes, Manuel Ricardo
Added 11 Dec 2010
Updated 11 Dec 2010
Type Journal
Year 2006
Where CCR
Authors Filipe Abrantes, Manuel Ricardo
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