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Sensors 2017, 17(11), 2697; doi:10.3390/s17112697

Optimal Pricing and Power Allocation for Collaborative Jamming with Full Channel Knowledge in Wireless Sensor Networks

1
Department of Electronics and Communication Engineering, Hanyang University, Ansan 15588, Korea
2
Division of Electrical Engineering, Hanyang University, Ansan 15588, Korea
*
Author to whom correspondence should be addressed.
Received: 18 October 2017 / Revised: 16 November 2017 / Accepted: 19 November 2017 / Published: 22 November 2017
(This article belongs to the Special Issue Sensor Networks for Collaborative and Secure Internet of Things)
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Abstract

This paper presents a price-searching model in which a source node (Alice) seeks friendly jammers that prevent eavesdroppers (Eves) from snooping legitimate communications by generating interference or noise. Unlike existing models, the distributed jammers also have data to send to their respective destinations and are allowed to access Alice’s channel if it can transmit sufficient jamming power, which is referred to as collaborative jamming in this paper. For the power used to deliver its own signal, the jammer should pay Alice. The price of the jammers’ signal power is set by Alice and provides a tradeoff between the signal and the jamming power. This paper presents, in closed-form, an optimal price that maximizes Alice’s benefit and the corresponding optimal power allocation from a jammers’ perspective by assuming that the network-wide channel knowledge is shared by Alice and jammers. For a multiple-jammer scenario where Alice hardly has the channel knowledge, this paper provides a distributed and interactive price-searching procedure that geometrically converges to an optimal price and shows that Alice by a greedy selection policy achieves certain diversity gain, which increases log-linearly as the number of (potential) jammers grows. Various numerical examples are presented to illustrate the behavior of the proposed model. View Full-Text
Keywords: optimal pricing; secure capacity; power allocation; Stackelberg game; distributed pricing optimal pricing; secure capacity; power allocation; Stackelberg game; distributed pricing
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jeong, D.-K.; Kim, I.; Kim, D. Optimal Pricing and Power Allocation for Collaborative Jamming with Full Channel Knowledge in Wireless Sensor Networks. Sensors 2017, 17, 2697.

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