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arXiv · 1812.10829

On the Secrecy Performance of Generalized User Selection for Interference-Limited Multiuser Wireless Networks

Yazan H. Al-Badarneh·Costas N. Georghiades·Redha M. Radaydeh·Mohamed-Slim Alouini
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Abstract

We investigate the secrecy performance of a multiuser diversity scheme for an interference-limited wireless network with a base-station (BS), $N$ legitimate users and an eavesdropper, in the presence of a single dominant interferer. Assuming interference dominates noise power at the eavesdropper and at each legitimate user's receiver, the BS transmits information to the legitimate user with the $k$-th best (highest) signal-to-interference ratio. We derive a closed-form expression for the secrecy outage probability for an arbitrary $N$ and an asymptotic expression for a fixed $k$ and large $N$. Furthermore, we derive a closed form asymptotic expression for the ergodic secrecy capacity of the $k$-th best user and show that it scales like $O\left(\log(N)\right)$ for a fixed $k$ and large $N$.

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Yazan H. Al-Badarneh, Costas N. Georghiades, Redha M. Radaydeh, Mohamed-Slim Alouini. 2018-12-27. On the Secrecy Performance of Generalized User Selection for Interference-Limited Multiuser Wireless Networks. https://doi.org/10.1109/tvt.2018.2878050

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