7 citations · 36 across the 13 of their papers we have counts for
6 papers · 1 filter
Load Modulation for Backscatter Communication: Channel Capacity and Near-Capacity Schemes
Gregor Dumphart, Johannes Sager, Armin Wittneben
In backscatter communication (BC), a passive tag transmits information by just affecting an external electromagnetic field through load modulation. Thereby, the feed current of the…
The Channel Capacity of General Complex-Valued Load Modulation for Backscatter Communication
Gregor Dumphart, Johannes Sager, Armin Wittneben
This paper studies achievable information rates of backscatter communication systems where the tag performs load modulation with a freely adaptable passive termination. We find tha…
The Channel Between Randomly Oriented Dipoles: Statistics and Outage in the Near and Far Field
Gregor Dumphart, Armin Wittneben
We consider the class of wireless links whose propagation characteristics are described by a dipole model. This comprises free-space links between dipole antennas and magneto-induc…
Magneto-inductive Passive Relaying in Arbitrarily Arranged Networks
Gregor Dumphart, Eric Slottke, Armin Wittneben
We consider a wireless sensor network that uses inductive near-field coupling for wireless powering or communication, or for both. The severely limited range of an inductively coup…
On the Distortion of the Eigenvalue Spectrum in MIMO Amplify-and-Forward Multi-Hop Channels
Joerg Wagner, Armin Wittneben
Consider a wireless MIMO multi-hop channel with n_s non-cooperating source antennas and n_d fully cooperating destination antennas, as well as L clusters containing k non-cooperati…
Large N Analysis of Amplify-and-Forward MIMO Relay Channels with Correlated Rayleigh Fading
Joerg Wagner, Boris Rankov, Armin Wittneben
In this correspondence the cumulants of the mutual information of the flat Rayleigh fading amplify-and-forward MIMO relay channel without direct link between source and destination…