Buttyn, L. und Hubaux, J.-P.: Nuglets: a Virtual Currency to Stimulate Cooperation in Self-Organized Mobile Ad Hoc Networks. Technical Report DSC/2001/001. EPFLDI -ICA. January 2001.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....all users in the network have the same behavior, as well as when some users are more selfish than others. Finally, in Section 5 we conclude the paper and discuss aspects that will be subject of future research. 2 RELATED WORK The problem of non cooperative nodes has been addressed previously in [5, 6, 7, 8]. In [6] non cooperative nodes are viewed as malicious, and methods to identify misbehaving users and to avoid routing through these nodes are presented. In [5, 7, 8] the idea that users may not want to cooperate because of their battery constraints is introduced and simple rules are proposed, ....

....will be subject of future research. 2 RELATED WORK The problem of non cooperative nodes has been addressed previously in [5, 6, 7, 8] In [6] non cooperative nodes are viewed as malicious, and methods to identify misbehaving users and to avoid routing through these nodes are presented. In [5, 7, 8], the idea that users may not want to cooperate because of their battery constraints is introduced and simple rules are proposed, which can be used to determine on a packet by packet basis whether a user should forward other nodes traffic or not. In particular, in [5, 7] the authors propose a ....

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L. Buttyn, J.-P. Hubaux, "Nuglets: a Virtual Currency to Stimulate Cooperation in SelfOrganized Mobile Ad Hoc Networks," Technical report No. DSC/2001.

....that may be presented to a node. In the latter case, the cost of contacting a TTP to verify payment tokens may outweigh the actual benefits gained. Previous work in this area has been done within the framework of the Terminodes project [ 1 ] They have proposed a virtual currency called nuglets [2] that attempts to stimulate cooperation within the network by rewarding nodes for service provision. The authors indicate that there could be selfish nodes in the network that will use services provided by other nodes, but modify their own behavior such that they do not cooperate in providing ....

L. Bullyfin and J.-P. Hubaux, "Nuglets: A Virtual Currency to Stimulate Cooperation in Self-Organized Mobile Ad Hoc Networks", Tech Report D SC/2001.

.... problem has not received much attention; to our knowledge it has only been investigated as part of a research project on wireless networks formed by terminodes (see [1] Terminodes are personal devices that provide the functionality of both a terminal (end host) and a network node (router) In [2], Butty an and Hubaux use a virtual currency (called nuglets) as a means to provide terminodes an incentive to relay packets for other terminodes: terminodes must need to have a certain amount of nuglets to send traffic, and nuglets can only be acquired by forwarding packets for other users. The ....

L. Butty an and J.-P. Hubaux, "Nuglets: a virtual currency to stimulate cooperation in self-organizing mobile ad hoc networks," Tech. Rep. DCS/2001.

....one described in [16] attempts to nd transaction models for ad hoc networks. 27] contains a rst proposal on integrated access to heterogeneous information sources in ad hoc networks relying on an agent based approach to address the issues. To motivate the users of an ad hoc net to collaborate, [1] proposes to introduce virtual coins (nuglets) of which each participant of the net possesses a certain amount. Every net service costs money, which is distributed among the nodes doing the work. Particularly in ad hoc networks, the approach su ers from di erent problems: What is a reasonable ....

Buttyan, L.; Hubaux, J.-P.: Nuglets: a Virtual Currency to Stimulate Cooperation in Self-Organized Mobile Ad-Hoc Networks. Technical Report DSC/2001/001, Swiss Federal Institute of Technology, Lausanne, Switzerland, January 2001.

....service. We have proposed two charging models: the Packet Purse Model, in which the source is charged, and the Packet Trade Model, in which the destination is charged. Figure 1 illustrates the operation of the Packet Purse Model. For a more detailed description of the models, we refer to [8]. 5 4 1 700 695 97 98 681 684 R1 R2 source destination packet with packet purse containing 4 nuglets node purse before and after packet transfer 4 681 684 Figure 1: Virtual currency: the nuglets The source puts 5 nuglets in the packet purse. The first relaying node R1 ....

....module would manage the nuglets of the node in such a way that the node cannot increase its stock of nuglets in an illegitimate way. In addition, this module would also be used to provide cryptographic protection for the packet purses. A protocol that could be used for this purpose is described in [8]. 4. PROTECTING THE SECURITY MECHANISMS As we have mentioned in Subsection 2.2, protecting the security mechanisms in an ad hoc network is a major challenge. We will focus here on what is arguably the most critical and complex issue, namely key establishment. As mentioned in [20] key ....

L. Butty'an and J.-P. Hubaux. Nuglets: a virtual currency to stimulate cooperation in self-organized ad hoc networks. Technical Report DSC/

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Buttyn, L. und Hubaux, J.-P.: Nuglets: a Virtual Currency to Stimulate Cooperation in Self-Organized Mobile Ad Hoc Networks. Technical Report DSC/2001/001. EPFLDI -ICA. January 2001.

No context found.

L. Butty an and J.-P. Hubaux, "Nuglets: a virtual currency to stimulate cooperation in self-organizing mobile ad hoc networks," Tech. Rep. DCS/2001.

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