239 citations · 695 across the 67 of their papers we have counts for
8 papers · 2 filters
On the Gaussian Multiple Access Wiretap Channel and the Gaussian Wiretap Channel with a Helper: Achievable Schemes and Upper Bounds
Rick Fritschek, Gerhard Wunder
We study deterministic approximations of the Gaussian two-user multiple access wiretap channel (G-MAC-WT) and the Gaussian wiretap channel with a helper (G-WT-H). These approximati…
Performance Limits of Compressive Sensing Channel Estimation in Dense Cloud RAN
Stelios Stefanatos, Gerhard Wunder
Towards reducing the training signaling overhead in large scale and dense cloud radio access networks (CRAN), various approaches have been proposed based on the channel sparsificat…
Compressive Coded Random Access for Massive MTC Traffic in 5G Systems
Gerhard Wunder, Cedomir Stefanovic, Petar Popovski +1
Massive MTC support is an important future market segment, but not yet efficiently supported in cellular systems. In this paper we follow-up on recent concepts combining advanced M…
On Multiuser Gain and the Constant-Gap Sum Capacity of the Gaussian Interfering Multiple Access Channel
Rick Fritschek, Gerhard Wunder
Recent investigations have shown sum capacity results within a constant bit-gap for several channel models, e.g. the two-user Gaussian interference channel (G-IC), k-user G-IC or t…
Compressive Estimation of a Stochastic Process with Unknown Autocorrelation Function
Mahdi Barzegar Khalilsarai, Saeid Haghighatshoar, Giuseppe Caire +1
In this paper, we study the prediction of a circularly symmetric zero-mean stationary Gaussian process from a window of observations consisting of finitely many samples. This is a…
On-The-Fly Secure Key Generation with Deterministic Models
Rick Fritschek, Gerhard Wunder
It is well-known that wireless channel reciprocity together with fading can be exploited to generate a common secret key between two legitimate communication partners. This can be…