65 citations · 324 across the 49 of their papers we have counts for
6 papers · 1 filter
On Stochastic Orders and Fast Fading Multiuser Channels with Statistical CSIT
Pin-Hsun Lin, Eduard A. Jorswieck, Rafael F. Schaefer +2
In this paper, fading Gaussian multiuser channels are considered. If the channel is perfectly known to the transmitter, capacity has been established for many cases in which the ch…
Optimal Number of Transmit Antennas for Secrecy Enhancement in Massive MIMOME Channels
Saba Asaad, Ali Bereyhi, Ralf R. Müller +2
This paper studies the impact of transmit antenna selection on the secrecy performance of massive MIMO wiretap channels. We consider a scenario in which a multi-antenna transmitter…
Wiretap Channels: Nonasymptotic Fundamental Limits
Wei Yang, Rafael F. Schaefer, H. Vincent Poor
This paper investigates the maximal secret communication rate over a wiretap channel subject to reliability and secrecy constraints at a given blocklength. New achievability and co…
Secure Broadcasting Using Independent Secret Keys
Rafael F. Schaefer, Ashish Khisti, H. Vincent Poor
The problem of secure broadcasting with independent secret keys is studied. The particular scenario is analyzed in which a common message has to be broadcast to two legitimate rece…
Full-Duplex Relaying with Improper Gaussian Signaling over Nakagami-m Fading Channels
Mohamed Gaafar, Mohammad Galal Khafagy, Osama Amin +2
We study the potential employment of improper Gaussian signaling (IGS) in full-duplex relaying (FDR) with non-negligible residual self-interference (RSI) under Nakagami- m fading.…
Improper Signaling for Virtual Full-Duplex Relay Systems
Mohamed Gaafar, Osama Amin, Rafael F. Schaefer +1
Virtual full-duplex (VFD) is a powerful solution to compensate the rate loss of half-duplex relaying without the need to full-duplex capable nodes. Inter-relay interference (IRI) c…