Effects of Outdated Channel on Secrecy Performance of Power Splitting-Based Relaying Protocol 


Vol. 44,  No. 5, pp. 829-834, May  2019
10.7840/kics.2019.44.5.829


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  Abstract

In this paper, we propose a power splitting-based relaying protocol to resolve the energy shortage problem of sensors and information security at the same time in wireless environments with the error caused by the outdated channel. An untrusted relay can be a potential eavesdropper, and it should harvest energy from the external RF signals because it has no power source. In addition, a destination sends a jamming signal to prevent the relay from decoding information transmitted by a source while the source transmits the information signal. If the channel is not outdated, the destination can interpret the source’s information by eliminating the jamming signal perfectly from the relaying signals. Otherwise, a residual jamming signal which cannot be canceled out degrades the receiving performance of the destination. In this situation, we derive a secrecy performance metric, e.g., outage probability, and find the values of jamming power ratio and power splitting ratio for optimizing the outage probability. Through the simulations under various environments, we show that the proposed scheme improves the secrecy performance, compared to the conventional scheme.

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  Cite this article

[IEEE Style]

K. Lee and J. Lim, "Effects of Outdated Channel on Secrecy Performance of Power Splitting-Based Relaying Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 5, pp. 829-834, 2019. DOI: 10.7840/kics.2019.44.5.829.

[ACM Style]

Kisong Lee and Jin-Taek Lim. 2019. Effects of Outdated Channel on Secrecy Performance of Power Splitting-Based Relaying Protocol. The Journal of Korean Institute of Communications and Information Sciences, 44, 5, (2019), 829-834. DOI: 10.7840/kics.2019.44.5.829.

[KICS Style]

Kisong Lee and Jin-Taek Lim, "Effects of Outdated Channel on Secrecy Performance of Power Splitting-Based Relaying Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 5, pp. 829-834, 5. 2019. (https://doi.org/10.7840/kics.2019.44.5.829)