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2017 | OriginalPaper | Chapter

A Credibility Evaluation Method in Opportunistic Networks

Authors : Jinxia Dou, Wenbin Yao, Dongbin Wang

Published in: Cloud Computing and Security

Publisher: Springer International Publishing

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Abstract

There are lots of misbehaving nodes in opportunistic networks which can cause severe performance downgrade. Those misbehaving nodes contains malicious nodes and selfish nodes. Selfish nodes don’t cooperate in routing and forwarding. Malicious nodes drop data packets or forward lots of garbage packets hindering the normal process of data forwarding. In order to improve network performance, a credibility evaluation method is proposed in this paper, named FICT. According to the FICT, familiar degree, intimate degree and contribution degree are defined to describe the social attributes of nodes. We use the number of contacts, connect time and PLR to calculate the value of the credibility of nodes. Just when the value of credibility is greater than or equal to the threshold, the node is selected to forward data packets. We performed simulation experiments with FICT method on the ONE. The simulation results show that by using the FICT method, the success rate of message delivery increases and the average latency of message delivery reduces. Especially when the number of misbehaving nodes becomes large, the FICT method can improve the performance of the networks significantly.

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Metadata
Title
A Credibility Evaluation Method in Opportunistic Networks
Authors
Jinxia Dou
Wenbin Yao
Dongbin Wang
Copyright Year
2017
Book
Cloud Computing and Security

Print ISBN: 978-3-319-68504-5

Electronic ISBN: 978-3-319-68505-2

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-68505-2_33

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