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Books and Theses
- 2018
[b1]Christoph Hellings:
Reduced-Entropy Signals in MIMO Communication Systems (Signale mit reduzierter Entropie in MIMO-Kommunikationssystemen). Technical University of Munich, Germany, 2018
Journal Articles
- 2021
- [j15]Ferhad Askerbeyli
, Christoph Hellings, Wolfgang Utschick:
Improper Signaling Versus Time-Sharing in the MISO Z-Interference Channel. IEEE Commun. Lett. 25(7): 2181-2185 (2021) - [j14]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: 1548-1562 (2021) - 2020
- [j13]Christoph Hellings, Wolfgang Utschick:
Improper Signaling Versus Time-Sharing in the Two-User Gaussian Interference Channel With TIN. IEEE Trans. Inf. Theory 66(5): 2988-2999 (2020) - [j12]Bho Matthiesen, Christoph Hellings, Eduard A. Jorswieck, Wolfgang Utschick:
Mixed Monotonic Programming for Fast Global Optimization. IEEE Trans. Signal Process. 68: 2529-2544 (2020) - [j11]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: 6467-6480 (2020) - 2019
- [j10]Christoph Hellings, Wolfgang Utschick:
Measuring impropriety in complex and real representations. Signal Process. 164: 267-283 (2019) - 2017
- [j9]Christoph Hellings, Wolfgang Utschick:
Improper Signaling Versus Time-Sharing in the SISO Z-Interference Channel. IEEE Commun. Lett. 21(11): 2432-2435 (2017) - 2015
- [j8]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): 6751-6758 (2015) - [j7]Christoph Hellings, Wolfgang Utschick:
Block-Skew-Circulant Matrices in Complex-Valued Signal Processing. IEEE Trans. Signal Process. 63(8): 2093-2107 (2015) - 2014
- [j6]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): 3153-3164 (2014) - 2013
- [j5]Christoph Hellings, Michael Joham, Wolfgang Utschick:
QoS Feasibility in MIMO Broadcast Channels With Widely Linear Transceivers. IEEE Signal Process. Lett. 20(11): 1134-1137 (2013) - [j4]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): 3021-3027 (2013) - 2012
- [j3]Christoph Hellings, Michael Joham, Wolfgang Utschick:
Gradient-Based Power Minimization in MIMO Broadcast Channels With Linear Precoding. IEEE Trans. Signal Process. 60(2): 877-890 (2012) - [j2]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): 1890-1898 (2012) - 2011
- [j1]Christoph Hellings, Wolfgang Utschick:
On the Inseparability of Parallel MIMO Broadcast Channels With Linear Transceivers. IEEE Trans. Signal Process. 59(12): 6273-6278 (2011)
Conference and Workshop Papers
- 2020
- [c33]Christoph Hellings, Yushu Yang, Wolfgang Utschick:
Minimax Solution to the Partial Decode-and-Forward Rate Maximization in the MIMO Relay Channel. WSA 2020: 1-6 - 2019
- [c32]Christoph Hellings, Bho Matthiesen, Eduard A. Jorswieck, Wolfgang Utschick:
Globally Optimal TIN Strategies with Time-Sharing in the MISO Interference Channel. EUSIPCO 2019: 1-5 - [c31]Christoph Hellings, Wolfgang Utschick:
Combining Linear Estimation with Scalar Widely Linear Estimation. ICASSP 2019: 5177-5181 - [c30]Michael Koller, Christoph Hellings, Wolfgang Utschick:
Learning-Based Channel Estimation for Various Antenna Array Configurations. SPAWC 2019: 1-5 - [c29]Bho Matthiesen, Christoph Hellings, Eduard A. Jorswieck:
Energy Efficiency: Rate Splitting vs. Point-to-Point Codes in Gaussian Interference Channels. SPAWC 2019: 1-5 - [c28]Christoph Hellings, Aymen Dehmani, Stefan Wesemann, Michael Koller, Wolfgang Utschick:
Evaluation of Neural-Network-Based Channel Estimators Using Measurement Data. WSA 2019: 164-168 - 2018
- [c27]Michael Koller, Christoph Hellings, Michael Knoedlseder, Thomas Wiese, David Neumann, Wolfgang Utschick:
Machine Learning for Channel Estimation from Compressed Measurements. ISWCS 2018: 1-5 - [c26]Christoph Hellings, Patrick Gest, Wolfgang Utschick:
Capacity of the Two-User MIMO Broadcast Channel Under a Shaping Constraint in Closed Form. SPAWC 2018: 1-5 - [c25]Christoph Hellings, Wolfgang Utschick:
Proper Time-Sharing as a Baseline for Studying Improper Signaling in Interference Channels. WSA 2018: 1-6 - 2017
- [c24]Christoph Hellings, Wolfgang Utschick:
On the Worst-Case Noise in Gaussian MIMO Systems with Proper and with Improper Signaling. WSA 2017: 1-7 - 2016
- [c23]Thomas Wiegart, Christoph Hellings, Wolfgang Utschick:
Close-to-Optimal Partial Decode-and-Forward Rate in the MIMO Relay Channel via Convex Programming. WSA 2016: 1-8 - 2015
- [c22]Christoph Hellings, Patrick Gogler, Wolfgang Utschick:
Composite real principal component analysis of complex signals. EUSIPCO 2015: 2216-2220 - [c21]Christoph Hellings, Wolfgang Utschick:
Two different real representations of complex matrices for describing widely linear systems. ISWCS 2015: 641-645 - [c20]Christoph Hellings, Wolfgang Utschick:
Separability of parallel Gaussian MIMO broadcast channels with shaping constraints. SPAWC 2015: 126-130 - [c19]Christoph Hellings, Michael Koller, Wolfgang Utschick:
An Impropriety Test Based on Block-Skew-Circulant Matrices. WSA 2015: 1-6 - 2014
- [c18]Christoph Hellings, Wolfgang Utschick:
On carrier-cooperation in parallel Gaussian MIMO relay channels with partial decode-and-forward. ACSSC 2014: 220-224 - [c17]Christoph Hellings, Lorenz Weiland, Wolfgang Utschick:
Optimality of proper signaling in Gaussian MIMO broadcast channels with shaping constraints. ICASSP 2014: 3474-3478 - [c16]Christoph Hellings, Stephan Herrmann, Wolfgang Utschick:
A Deterministic Initialization for Optimizing Carrier-Cooperative Transmit Strategies. WSA 2014: 1-7 - 2013
- [c15]Christoph Hellings, Wolfgang Utschick:
Performance gains due to improper signals in MIMO broadcast channels with widely linear transceivers. ICASSP 2013: 4379-4383 - [c14]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: 4744-4748 - [c13]Christoph Hellings, Wolfgang Utschick:
Three Kinds of Inseparability in Parallel MIMO Broadcast Channels with Linear Transceivers. ISWCS 2013: 1-5 - [c12]Christoph Hellings, Wolfgang Utschick:
Energy efficiency optimization in the multiantenna downlink with linear transceivers. PIMRC 2013: 414-418 - [c11]Christoph Hellings, Wolfgang Utschick:
Energy efficiency optimization in MIMO broadcast channels with fairness constraints. SPAWC 2013: 599-603 - [c10]Christoph Hellings, Wolfgang Utschick:
Linear Precoding in Parallel MIMO Broadcast Channels: Separable and Inseparable Scenarios. WSA 2013: 1-8 - 2012
- [c9]Stephan Herrmann, Christoph Hellings, Wolfgang Utschick:
Carrier-cooperative zero-forcing for power minimization in parallel MIMO broadcast channels. ACSCC 2012: 1162-1166 - [c8]Christoph Hellings, Wolfgang Utschick:
Energy-efficient rate balancing in vector broadcast channels with linear transceivers. ISWCS 2012: 1044-1048 - [c7]Christoph Hellings, Paskal Kiefer, Wolfgang Utschick:
Rate prediction and receding horizon power minimization in block-fading broadcast channels. SPAWC 2012: 30-34 - [c6]Christoph Hellings, Nesrine Damak, Wolfgang Utschick:
Energy-efficient zero-forcing with user selection in parallel vector broadcast channels. WSA 2012: 168-175 - 2011
- [c5]Christoph Hellings, Wolfgang Utschick, Michael Joham:
Power minimization in parallel vector broadcast channels with separate linear precoding. EUSIPCO 2011: 1834-1838 - [c4]Christoph Hellings, Wolfgang Utschick:
Carrier-cooperative transmission in parallel MIMO broadcast channels: Potential gains and algorithms. ISWCS 2011: 774-778 - [c3]Christoph Hellings, Michael Joham, Wolfgang Utschick:
Gradient-based rate balancing for MIMO broadcast channels with linear precoding. WSA 2011: 1-8 - 2010
- [c2]Christoph Hellings, Michael Joham, Wolfgang Utschick:
Power Minimization in Parallel Vector Broadcast Channels with Zero-Forcing Beamforming. GLOBECOM 2010: 1-5 - [c1]Michael Joham, Christoph Hellings, Raphael Hunger:
QoS feasibility for the MIMO broadcast channel: Robust formulation and multi-carrier systems. WiOpt 2010: 610-614
Informal and Other Publications
- 2019
- [i5]Bho Matthiesen, Christoph Hellings, Eduard A. Jorswieck, Wolfgang Utschick:
Mixed Monotonic Programming for Fast Global Optimization. CoRR abs/1910.07853 (2019) - [i4]Christoph Hellings, Patrick Gest, Thomas Wiegart, Wolfgang Utschick:
Maximizing the Partial Decode-and-Forward Rate in the Gaussian MIMO Relay Channel. CoRR abs/1911.05767 (2019) - [i3]Christoph Hellings, Ferhad Askerbeyli, Wolfgang Utschick:
Two-User SIMO Interference Channel with TIN: Improper Signaling versus Time-Sharing. CoRR abs/1912.06402 (2019) - 2018
- [i2]Christoph Hellings, Wolfgang Utschick:
Improper Signaling versus Time-Sharing in the Two-User Gaussian Interference Channel with TIN. CoRR abs/1808.01611 (2018) - 2014
- [i1]Lennart Gerdes, Christoph Hellings, Lorenz Weiland, Wolfgang Utschick:
The Optimal Input Distribution for Partial Decode-and-Forward in the MIMO Relay Channel. CoRR abs/1409.8624 (2014)
Coauthor Index
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