A Role of Small Cells in Heterogeneous Networks for Physical-Layer Security: Jamming or Cooperation 


Vol. 43,  No. 4, pp. 619-628, Apr.  2018
10.7840/kics.2018.43.4.619


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  Abstract

In this paper, we investigated a role of small cell in heterogeneous networks for physical layer security. We assume that the small cell can be used for jamming to degrade an eavesdropper’s capability or for cooperative transmission to enhance a user’s signal quality. When we consider multiple users and eavesdroppers, we analyzed the effect of the number of users, eavesdroppers, and user selection on jamming strategies. We also verified the effectiveness of the proposed user selection and jamming strategies in terms of secrecy rate through simulations. Finally, we proposed jamming strategies at the small cell depending on the availability of the eavesdropper’s channel state information (CSI). The small cell adopts an adaptive jamming if the eavesdropper’s CSI is available otherwise it utilizes probabilistic jamming.

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  Cite this article

[IEEE Style]

I. Bang and S. M. Kim, "A Role of Small Cells in Heterogeneous Networks for Physical-Layer Security: Jamming or Cooperation," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 4, pp. 619-628, 2018. DOI: 10.7840/kics.2018.43.4.619.

[ACM Style]

Inkyu Bang and Su Min Kim. 2018. A Role of Small Cells in Heterogeneous Networks for Physical-Layer Security: Jamming or Cooperation. The Journal of Korean Institute of Communications and Information Sciences, 43, 4, (2018), 619-628. DOI: 10.7840/kics.2018.43.4.619.

[KICS Style]

Inkyu Bang and Su Min Kim, "A Role of Small Cells in Heterogeneous Networks for Physical-Layer Security: Jamming or Cooperation," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 4, pp. 619-628, 4. 2018. (https://doi.org/10.7840/kics.2018.43.4.619)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880