NDLI: Throughput performance and fairness in multihop wireless mesh networks

Content Provider	IEEE Xplore Digital Library
Author	Mingsheng Gao Hui Jiang
Copyright Year	2014
Description	Author affiliation: Dept. of Commun. Eng., Hohai Univ., Changzhou, China (Mingsheng Gao) \|\| Dept. of Comput. Sci. & Eng., Shanghai Jiao Tong Univ., Shanghai, China (Hui Jiang)
Abstract	In IEEE 802.11-based multihop wireless mesh networks (WMNs), nodes that are a number of hops away from the gateway (GW) face two-fold contentions: namely channel access contention between itself and other nodes, and traffic contention between its own and relayed traffic. As a result, they suffer from low throughput and even starvation, which results in unfairness in transmissions. In this paper, we develop a rate control mechanism that can flexibly coordinate the tradeoff between throughput and fairness to adapt to different application scenarios by combining a rate adaptation algorithm, an adaptive capacity estimation algorithm and a queue management scheme. More specifically, with the adaptation algorithm, nodes can dynamically change their rates according to the number of flows observed or to the updated rate overheard; with the adaptive capacity estimation algorithm, nodes can adjust their rates by varying the fairness index provided that a certain fairness index threshold is satisfied; while the queue management scheme enables nodes to transmit their data packets originated from different flows (including their local flows) in a proportional manner. To evaluate the effectiveness of the proposed scheme, we demonstrate its performance via ns-2 simulations in terms of throughput, fairness as well as convergence property.
Starting Page	867
Ending Page	872
File Size	196190
Page Count	6
File Format	PDF
ISBN	9781479941469
DOI	10.1109/ICCChina.2014.7008398
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Heuristic algorithms Estimation Logic gates Throughput Indexes Convergence
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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