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FD-AQM: Fairness-Aware Delay-Controlled Active Queue Management in 802.11s-Based Multi-Radio Multi-Channel Wireless Mesh Networks
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- Authors
- Nam-Seok Ko, Myoung-Hun Kim, Hong-Shik Park
- Issue Date
- 2015-05
- Citation
- IEEE Communications Letters, v.19, no.5, pp.839-842
- ISSN
- 1089-7798
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- Several active queue management (AQM) schemes have been proposed to address the bufferbloat issue, a long network delay and performance degradation issue caused by excess buffering of packets in network nodes. The solutions proposed up to now, however, satisfy only a subset of the key network performance metrics, i.e., end-to-end throughput, throughput fairness, and delay, in 802.11s-based multi-radio multi-channel wireless mesh networks (MRMC WMN). In this letter, we propose FD-AQM, a fairness-aware delay-controlled AQM to satisfy all three key network performance metrics simultaneously in the 802.11s-based MRMC WMN. The proposed FD-AQM achieves the goal by adopting a per-queue drop interval which is recalibrated according to the average round-trip time of flows, and a drop decision mechanism which considers average throughput as well as target delay. Through simulations, we show that FD-AQM is superior to other AQM schemes in terms of throughput and fairness.
- KSP Keywords
- Average Throughput, Decision mechanism, End to End(E2E), MRMC WMN, Multi-Radio Multi-Channel wireless mesh networks, Network delay, Network node, Network performance, Round trip time, active queue management, end-to-end throughput