✦ LIBER ✦

Cross-layer congestion control in ad hoc wireless networks

✍ Scribed by Dzmitry Kliazovich; Fabrizio Granelli

Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 393 KB
Volume: 4
Category: Article
ISSN: 1570-8705
DOI: 10.1016/j.adhoc.2005.08.001

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✦ Synopsis

The paper presents the problem of performance degradation of transport layer protocols due to congestion of wireless local area networks. Following the analysis of available solutions to this problem, a cross-layer congestion avoidance scheme (C 3 TCP) is presented, able to obtain higher performance by gathering capacity information such as bandwidth and delay at the link layer. The method requires the introduction of an additional module within the protocol stack of the mobile node, able to adjust the outgoing data stream based on capacity measurements. Moreover, a proposal to provide optional field support to existing IEEE 802.11 protocol, in order to support the presented congestion control solution as well as many other similar approaches, is presented. Achieved results underline good agreement with design considerations and high utilization of the available resources.

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