Christoph Hellings

Publication Activity (10 Years)

Years Active: 2010-2021
Publications (10 Years): 28

Top Topics

Energy Efficiency

Top Venues

IEEE Trans. Signal Process.

Publications

Ferhad Askerbeyli, Christoph Hellings, Wolfgang Utschick
Improper Signaling Versus Time-Sharing in the MISO Z-Interference Channel. IEEE Commun. Lett. 25 (7) (2021)
Christoph Hellings, Patrick Gest, Thomas Wiegart, Wolfgang Utschick
Maximizing the Partial Decode-and-Forward Rate in the Gaussian MIMO Relay Channel. IEEE Trans. Signal Process. 69 (2021)
Christoph Hellings, Ferhad Askerbeyli, Wolfgang Utschick
Two-User SIMO Interference Channel With Treating Interference as Noise: Improper Signaling Versus Time-Sharing. IEEE Trans. Signal Process. 68 (2020)
Christoph Hellings, Yushu Yang, Wolfgang Utschick
Minimax Solution to the Partial Decode-and-Forward Rate Maximization in the MIMO Relay Channel. WSA (2020)
Christoph Hellings, Wolfgang Utschick
Improper Signaling Versus Time-Sharing in the Two-User Gaussian Interference Channel With TIN. IEEE Trans. Inf. Theory 66 (5) (2020)
Bho Matthiesen, Christoph Hellings, Eduard A. Jorswieck, Wolfgang Utschick
Mixed Monotonic Programming for Fast Global Optimization. IEEE Trans. Signal Process. 68 (2020)
Bho Matthiesen, Christoph Hellings, Eduard A. Jorswieck
Energy Efficiency: Rate Splitting vs. Point-to-Point Codes in Gaussian Interference Channels. SPAWC (2019)
Christoph Hellings, Wolfgang Utschick
Combining Linear Estimation with Scalar Widely Linear Estimation. ICASSP (2019)
Christoph Hellings, Bho Matthiesen, Eduard A. Jorswieck, Wolfgang Utschick
Globally Optimal TIN Strategies with Time-Sharing in the MISO Interference Channel. EUSIPCO (2019)
Christoph Hellings, Wolfgang Utschick
Measuring impropriety in complex and real representations. Signal Process. 164 (2019)
Christoph Hellings, Aymen Dehmani, Stefan Wesemann, Michael Koller, Wolfgang Utschick
Evaluation of Neural-Network-Based Channel Estimators Using Measurement Data. WSA (2019)
Christoph Hellings, Patrick Gest, Thomas Wiegart, Wolfgang Utschick
Maximizing the Partial Decode-and-Forward Rate in the Gaussian MIMO Relay Channel. CoRR (2019)
Bho Matthiesen, Christoph Hellings, Eduard A. Jorswieck, Wolfgang Utschick
Mixed Monotonic Programming for Fast Global Optimization. CoRR (2019)
Michael Koller, Christoph Hellings, Wolfgang Utschick
Learning-Based Channel Estimation for Various Antenna Array Configurations. SPAWC (2019)
Christoph Hellings, Ferhad Askerbeyli, Wolfgang Utschick
Two-User SIMO Interference Channel with TIN: Improper Signaling versus Time-Sharing. CoRR (2019)
Christoph Hellings, Wolfgang Utschick
Proper Time-Sharing as a Baseline for Studying Improper Signaling in Interference Channels. WSA (2018)
Christoph Hellings, Wolfgang Utschick
Improper Signaling versus Time-Sharing in the Two-User Gaussian Interference Channel with TIN. CoRR (2018)
Christoph Hellings, Patrick Gest, Wolfgang Utschick
Capacity of the Two-User MIMO Broadcast Channel Under a Shaping Constraint in Closed Form. SPAWC (2018)
Michael Koller, Christoph Hellings, Michael Knoedlseder, Thomas Wiese, David Neumann, Wolfgang Utschick
Machine Learning for Channel Estimation from Compressed Measurements. ISWCS (2018)
Christoph Hellings, Wolfgang Utschick
On the Worst-Case Noise in Gaussian MIMO Systems with Proper and with Improper Signaling. WSA (2017)
Christoph Hellings, Wolfgang Utschick
Improper Signaling Versus Time-Sharing in the SISO Z-Interference Channel. IEEE Commun. Lett. 21 (11) (2017)
Thomas Wiegart, Christoph Hellings, Wolfgang Utschick
Close-to-Optimal Partial Decode-and-Forward Rate in the MIMO Relay Channel via Convex Programming. WSA (2016)
Christoph Hellings, Michael Koller, Wolfgang Utschick
An Impropriety Test Based on Block-Skew-Circulant Matrices. WSA (2015)
Lennart Gerdes, Christoph Hellings, Lorenz Weiland, Wolfgang Utschick
On the Maximum Achievable Partial Decode-and-Forward Rate for the Gaussian MIMO Relay Channel. IEEE Trans. Inf. Theory 61 (12) (2015)
Christoph Hellings, Wolfgang Utschick
Block-Skew-Circulant Matrices in Complex-Valued Signal Processing. IEEE Trans. Signal Process. 63 (8) (2015)
Christoph Hellings, Wolfgang Utschick
Separability of parallel Gaussian MIMO broadcast channels with shaping constraints. SPAWC (2015)
Christoph Hellings, Wolfgang Utschick
Two different real representations of complex matrices for describing widely linear systems. ISWCS (2015)
Christoph Hellings, Patrick Gogler, Wolfgang Utschick
Composite real principal component analysis of complex signals. EUSIPCO (2015)
Christoph Hellings, Lorenz Weiland, Wolfgang Utschick
Optimality of proper signaling in Gaussian MIMO broadcast channels with shaping constraints. ICASSP (2014)
Christoph Hellings, Stephan Herrmann, Wolfgang Utschick
A Deterministic Initialization for Optimizing Carrier-Cooperative Transmit Strategies. WSA (2014)
Christoph Hellings, Lennart Gerdes, Lorenz Weiland, Wolfgang Utschick
On Optimal Gaussian Signaling in MIMO Relay Channels With Partial Decode-and-Forward. IEEE Trans. Signal Process. 62 (12) (2014)
Lennart Gerdes, Christoph Hellings, Lorenz Weiland, Wolfgang Utschick
The Optimal Input Distribution for Partial Decode-and-Forward in the MIMO Relay Channel. CoRR (2014)
Christoph Hellings, Wolfgang Utschick
On carrier-cooperation in parallel Gaussian MIMO relay channels with partial decode-and-forward. ACSSC (2014)
Christoph Hellings, Wolfgang Utschick
Linear Precoding in Parallel MIMO Broadcast Channels: Separable and Inseparable Scenarios. WSA (2013)
Christoph Hellings, Michael Joham, Wolfgang Utschick
QoS Feasibility in MIMO Broadcast Channels With Widely Linear Transceivers. IEEE Signal Process. Lett. 20 (11) (2013)
Andreas Gründinger, David Leiner, Michael Joham, Christoph Hellings, Wolfgang Utschick
Ergodic robust rate balancing for rank-one vector broadcast channels via sequential approximations. ICASSP (2013)
Christoph Hellings, Wolfgang Utschick
Energy efficiency optimization in the multiantenna downlink with linear transceivers. PIMRC (2013)
Christoph Hellings, Wolfgang Utschick
Performance gains due to improper signals in MIMO broadcast channels with widely linear transceivers. ICASSP (2013)
Christoph Hellings, Wolfgang Utschick
Energy efficiency optimization in MIMO broadcast channels with fairness constraints. SPAWC (2013)
Christoph Hellings, Wolfgang Utschick
Three Kinds of Inseparability in Parallel MIMO Broadcast Channels with Linear Transceivers. ISWCS (2013)
Christoph Hellings, Stephan Herrmann, Wolfgang Utschick
Carrier Cooperation Can Reduce the Transmit Power in Parallel MIMO Broadcast Channels With Zero-Forcing. IEEE Trans. Signal Process. 61 (12) (2013)
Christoph Hellings, Paskal Kiefer, Wolfgang Utschick
Rate prediction and receding horizon power minimization in block-fading broadcast channels. SPAWC (2012)
Christoph Hellings, Michael Joham, Wolfgang Utschick
Gradient-Based Power Minimization in MIMO Broadcast Channels With Linear Precoding. IEEE Trans. Signal Process. 60 (2) (2012)
Christoph Hellings, Wolfgang Utschick
Energy-efficient rate balancing in vector broadcast channels with linear transceivers. ISWCS (2012)
Christoph Hellings, Michael Joham, Maximilian Riemensberger, Wolfgang Utschick
Minimal Transmit Power in Parallel Vector Broadcast Channels With Linear Precoding. IEEE Trans. Signal Process. 60 (4) (2012)
Christoph Hellings, Nesrine Damak, Wolfgang Utschick
Energy-efficient zero-forcing with user selection in parallel vector broadcast channels. WSA (2012)
Stephan Herrmann, Christoph Hellings, Wolfgang Utschick
Carrier-cooperative zero-forcing for power minimization in parallel MIMO broadcast channels. ACSCC (2012)
Christoph Hellings, Wolfgang Utschick
On the Inseparability of Parallel MIMO Broadcast Channels With Linear Transceivers. IEEE Trans. Signal Process. 59 (12) (2011)
Christoph Hellings, Michael Joham, Wolfgang Utschick
Gradient-based rate balancing for MIMO broadcast channels with linear precoding. WSA (2011)
Christoph Hellings, Wolfgang Utschick, Michael Joham
Power minimization in parallel vector broadcast channels with separate linear precoding. EUSIPCO (2011)
Christoph Hellings, Wolfgang Utschick
Carrier-cooperative transmission in parallel MIMO broadcast channels: Potential gains and algorithms. ISWCS (2011)
Michael Joham, Christoph Hellings, Raphael Hunger
QoS feasibility for the MIMO broadcast channel: Robust formulation and multi-carrier systems. WiOpt (2010)
Christoph Hellings, Michael Joham, Wolfgang Utschick
Power Minimization in Parallel Vector Broadcast Channels with Zero-Forcing Beamforming. GLOBECOM (2010)