Detection of Traffic Congestion Based on Link-Level Metrics in IEEE 802.11 Networks
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概要
- 論文の詳細を見る
In this paper, we address adaptive link switching over heterogeneous wireless access networks including IEEE 802.11. When an IEEE 802.11 link is congested, the transmission link of a terminal with multi-RATs (radio access technologies) is switched to another radio access systems. To this end, we propose link-level metrics of LC (link cost) and AC (access cost) for quantifying TCP congestion over IEEE 802.11 networks. The proposed metric can be easily measured at a local wireless terminal, and that enables each multi-RAT terminal to work in a distributed way. Through various indoor and outdoor experiments using a test-bed system, we verify that the proposed link level metrics are good indicators of TCP traffic congestion. Experimental results show that the proposed metrics can detect congestion occurrence quickly, and avoid the TCP throughput degradation of other neighboring terminals, when they are used for transmission link switching.
- (社)電子情報通信学会の論文
- 2011-04-01
著者
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Davis Peter
ATR
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OBANA Sadao
ATR Adaptive Communications Research Laboratories
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Obana Sadao
Atr Adaptive Communications Res. Lab. Keihanna Sci. City Jpn
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Kim Jong-ok
Atr Adaptive Communications Research Laboratories Dept. Of Autonomous Systems
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Obana Sadao
Atr Adaptive Communications Research Labs
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Kim Jong-ok
Atr
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Obana Sadao
Atr
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Davis Peter
Atr Adaptive Communication Res. Lab. Kyoto‐fu Jpn
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Ueda Tetsuro
Atr
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Kim Jong-ok
Korea University
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