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

Yazan H. Al-Badarneh, Costas Georghiades, Redha M. Radaydeh, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

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.
Original languageEnglish (US)
Pages (from-to)12442-12446
Number of pages5
JournalIEEE Transactions on Vehicular Technology
Volume67
Issue number12
DOIs
StatePublished - Oct 25 2018

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