Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62106
Title: A secure credit-based incentive mechanism for message forwarding in noncooperative DTNs
Authors: Chen, H
Lou, W 
Wang, Z
Wang, Q
Keywords: Cooperation
Noncooperative delay-tolerant networks (DTNs)
Rewarding schemes
Secure
Issue Date: 2016
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on vehicular technology, 2016, v. 65, no. 8, 7244233, p. 6377-6388 How to cite?
Journal: IEEE transactions on vehicular technology 
Abstract: Delay-tolerant networks (DTNs) are an emergent communication paradigm characterized by intermittent connectivity. The nodes in DTNs can take advantage of their contact opportunities to forward messages. However, in noncooperative DTNs, the nodes may be selfish and reluctant to cooperate with each other in message forwarding. In such DTNs, stimulating cooperation among the nodes will be indispensable. Recently, many incentive mechanisms have been proposed to motivate nodes to cooperate in message forwarding. However, most of them cannot guarantee systematic security. To resolve the drawback of the previous incentive mechanisms, we first propose a credit-based rewarding scheme called the earliest path singular rewarding (EPSR) scheme to motivate the nodes to truthfully forward the messages during every contact opportunity. Then, we propose another credit-based rewarding scheme called the earliest path cumulative rewarding (EPCR) scheme by further considering that a node may get more contact information on others. We prove that both the EPSR and EPCR schemes are incentive compatible, and the payment for each delivered message is upper bounded. Furthermore, the proposed schemes can prevent selfish nodes having malicious behaviors. We have conducted real-trace-based simulations to illustrate the effectiveness of the proposed EPSR and EPCR schemes.
URI: http://hdl.handle.net/10397/62106
ISSN: 0018-9545
EISSN: 1939-9359
DOI: 10.1109/TVT.2015.2477164
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