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Sensors 2014, 14(9), 16617-16629; doi:10.3390/s140916617

An Adaptive Failure Detector Based on Quality of Service in Peer-to-Peer Networks

School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China
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Received: 1 July 2014 / Revised: 4 August 2014 / Accepted: 5 August 2014 / Published: 5 September 2014
(This article belongs to the Section Physical Sensors)
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Abstract

The failure detector is one of the fundamental components that maintain high availability of Peer-to-Peer (P2P) networks. Under different network conditions, the adaptive failure detector based on quality of service (QoS) can achieve the detection time and accuracy required by upper applications with lower detection overhead. In P2P systems, complexity of network and high churn lead to high message loss rate. To reduce the impact on detection accuracy, baseline detection strategy based on retransmission mechanism has been employed widely in many P2P applications; however, Chen’s classic adaptive model cannot describe this kind of detection strategy. In order to provide an efficient service of failure detection in P2P systems, this paper establishes a novel QoS evaluation model for the baseline detection strategy. The relationship between the detection period and the QoS is discussed and on this basis, an adaptive failure detector (B-AFD) is proposed, which can meet the quantitative QoS metrics under changing network environment. Meanwhile, it is observed from the experimental analysis that B-AFD achieves better detection accuracy and time with lower detection overhead compared to the traditional baseline strategy and the adaptive detectors based on Chen’s model. Moreover, B-AFD has better adaptability to P2P network. View Full-Text
Keywords: distributed system; Peer-to-Peer networks; adaptive failure detector; quality of service distributed system; Peer-to-Peer networks; adaptive failure detector; quality of service
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Dong, J.; Ren, X.; Zuo, D.; Liu, H. An Adaptive Failure Detector Based on Quality of Service in Peer-to-Peer Networks. Sensors 2014, 14, 16617-16629.

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