Slope based discard: a buffer management scheme for 3G links supporting TCP traffic
Pages 1459 - 1464
Abstract
This paper introduces Slope Based Discard (SBD), a novel Active Queue Management (AQM) scheme that improves TCP performance over 3G wireless links. Its main objective is to prevent buffer overflow at the downlink buffer in the Radio Network Controller, where the flows of a single user are multiplexed. In contrast to Random Early Detection (RED), SBD is a deterministic algorithm, and its discarding policy is based on the observation of the filling rate of the buffer. By means of extensive simulation experiments, we disclose the influence of each SBD parameter on TCP goodput and latency. Compared to RED, which parameter configuration is also addresed, SBD shows similar goodput figures but lower delays. We describe other characteristics that make SBD a better choice than RED for 3G links, like its greater capability to prevent buffer overflow, and its easier implementation.
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Index Terms
- Slope based discard: a buffer management scheme for 3G links supporting TCP traffic
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Published In
July 2006
2006 pages
ISBN:1595933069
DOI:10.1145/1143549
- General Chairs:
- Seizo Onoe,
- Mohsen Guizani,
- Hsiao-Hwa Chen,
- Mamoru Sawahashi
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Published: 03 July 2006
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IWCMC06
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IWCMC06: 2006 International Wireless Communications and Mobile Computing Conference
July 3 - 6, 2006
British Columbia, Vancouver, Canada
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