6 citations · 13 across the 6 of their papers we have counts for
11 papers
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…
Pairwise Distance and Position Estimators From Differences in UWB Channels to Observers
Gregor Dumphart, Robin Kramer, Armin Wittneben
We consider the problem of obtaining relative location information between two wireless nodes from the differences in their ultra-wideband (UWB) channels to observer nodes. Our app…
Pairwise Node Localization From Differences in Their UWB Channels to Observer Nodes
Gregor Dumphart, Robin Kramer, Robert Heyn +2
We consider the problem of localization and distance estimation between a pair of wireless nodes in a multipath propagation environment, but not the usual way of processing a chann…
Cooperative Magneto-Inductive Localization
Henry Schulten, Gregor Dumphart, Antonios Koskinas +1
Wireless localization is a key requirement for many applications. It concerns position estimation of mobile nodes (agents) relative to fixed nodes (anchors) from wireless channel m…
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…