Interactions between TCP and the IEEE 802.11 MAC protocol
- 2 March 2004
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 273-282 vol.1
- https://doi.org/10.1109/discex.2003.1194891
Abstract
The IEEE 802.11x MAC protocol, the de facto standard for wireless LANs, includes a distributed coordination function (DCF) mode usable for ad hoc network architectures. The Transmission Control Protocol (TCP) is commonly used on top of this MAC for reliable transport. TCPs congestion control scheme assumes highly reliable frame transmission at the link layer Unfortunately, this assumption does not hold in multi-hop wireless network scenarios, leading to severe performance degradation. In this paper we study the interactions between the TCP and 802.11b MAC protocols, and examine the effects of different TCP and 802.11b parameters on the throughput achieved Using simulations and analysis, we highlight the causes of performance degradation when TCP is used over 802.11b MAC in a multi-hop wireless scenario.Keywords
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