Christos K. Kourtellaris

Publication Activity (10 Years)

Years Active: 2008-2024
Publications (10 Years): 42

Top Topics

Optimal Control

Gaussian Process

Decision Models

Top Venues

IEEE Trans. Inf. Theory

Publications

Charalambos D. Charalambous, Christos K. Kourtellaris, Ioannis Tzortzis
Optimal Control and Signaling Strategies of Control-Coding Capacity of General Decision Models: Applications to Gaussian Models and Decentralized Strategies. SIAM J. Control. Optim. 62 (1) (2024)
Charalambos D. Charalambous, Themistoklis Charalambous, Christos K. Kourtellaris, Jan H. van Schuppen
Complete Characterization of Gorbunov and Pinsker Nonanticipatory Epsilon Entropy of Multivariate Gaussian Sources: Structural Properties. IEEE Trans. Inf. Theory 68 (3) (2022)
Charalambos D. Charalambous, Christos K. Kourtellaris, Stelios Louka
Signalling and Control of Nonlinear Partially Observable Stochastic Control Models. ECC (2022)
Stelios Louka, Christos K. Kourtellaris, Charalambos D. Charalambous
Feedback Capacity Formulas of AGN Channels Driven by Nonstationary Autoregressive Moving Average Noise. CoRR (2021)
Stelios Louka, Christos K. Kourtellaris, Charalambos D. Charalambous
Qualitative Analysis of Feedback Capacity of AGN Channels Driven by Unstable Versus Stable Autoregressive Moving Average Noise. ITW (2021)
Charalambos D. Charalambous, Christos K. Kourtellaris, Themistoklis Charalambous
On the Fragile Rates of Linear Feedback Coding Schemes of Gaussian Channels with Memory. CoRR (2021)
Charalambos D. Charalambous, Christos K. Kourtellaris, Stelios Louka
Sequential Characterizations of Cover and Pombra Gaussian Feedback Capacity: Generalizations to MIMO Channels via Sufficient Statistic. ITW (2021)
Charalambos D. Charalambous, Christos K. Kourtellaris, Stelios Louka
On the Cover and Pombra Gaussian Feedback Capacity: Complete Sequential Characterizations via a Sufficient Statistic. CoRR (2021)
Christos K. Kourtellaris, Constantinos Psomas, Ioannis Krikidis
Finite Blocklength Analysis of Multiple Access Channels With/Without Cooperation. IEEE Trans. Commun. 68 (10) (2020)
Charalambos D. Charalambous, Christos K. Kourtellaris, Ioannis Tzortzis
Ergodic Control-Coding Capacity of Stochastic Control Systems: Information Signalling and Hierarchical Optimality of Gaussian Systems. SIAM J. Control. Optim. 58 (1) (2020)
Charalambos D. Charalambous, Christos K. Kourtellaris, Stelios Louka
New Formulas of Feedback Capacity for AGN Channels with Memory: A Time-Domain Sufficient Statistic Approach. CoRR (2020)
Christos K. Kourtellaris, Charalambos D. Charalambous, Sergey Loyka
From Feedback Capacity to Tight Achievable Rates without Feedback for AGN Channels with Stable and Unstable Autoregressive Noise. ISIT (2020)
Charalambos D. Charalambous, Themistoklis Charalambous, Christos K. Kourtellaris, Jan H. van Schuppen
Structural Properties of Nonanticipatory Epsilon Entropy of Multivariate Gaussian Sources. ISIT (2020)
Christos K. Kourtellaris, Charalambos D. Charalambous, Sergey Loyka
New Formulas of Ergodic Feedback Capacity of AGN Channels Driven by Stable and Unstable Autoregressive Noise. ISIT (2020)
Charalambos D. Charalambous, Christos K. Kourtellaris, Sergey Loyka
Time-Invariant Feedback Strategies Do Not Increase Capacity of AGN Channels Driven by Stable and Certain Unstable Autoregressive Noise. CoRR (2019)
Christos K. Kourtellaris, Constantinos Psomas, Ioannis Krikidis
Finite Blocklength Analysis of the Multiple Access Relay Channel with Batch-and-Forward Strategy. ICC (2019)
Charalambos D. Charalambous, Christos K. Kourtellaris
Global Optimality of Encoders and MSE Decoders for Communicating Unstable Markov Processes over Unstable Gaussian Recursive Models with Feedback: A Nonanticipative RDF Approach. ISIT (2019)
Constantinos Psomas, Christos K. Kourtellaris, Ioannis Krikidis
Short Packet Communications in Large-Scale Wireless Powered Networks. SPAWC (2019)
Charalambos D. Charalambous, Christos K. Kourtellaris, Themistoklis Charalambous, Jan H. van Schuppen
Generalizations of Nonanticipative Rate Distortion Function to Multivariate Nonstationary Gaussian Autoregressive Processes. CDC (2019)
Christos K. Kourtellaris, Constantinos Psomas, Ioannis Krikidis
Stability of a TDMA Network Subject to Finite Blocklength Constraints. ICC (2019)
Charalambos D. Charalambous, Christos K. Kourtellaris, Sergey Loyka
Capacity Achieving Distributions and Separation Principle for Feedback Gaussian Channels With Memory: the LQG Theory of Directed Information. IEEE Trans. Inf. Theory 64 (9) (2018)
Christos K. Kourtellaris, Charalambos D. Charalambous
Information Structures for Feedback Capacity of Channels With Memory and Transmission Cost: Stochastic Optimal Control and Variational Equalities. IEEE Trans. Inf. Theory 64 (7) (2018)
Charalambos D. Charalambous, Christos K. Kourtellaris, Themistoklis Charalambous
A General Coding Scheme for Signaling Gaussian Processes Over Gaussian Decision Models. SPAWC (2018)
Charalambos D. Charalambous, Christos K. Kourtellaris, Sergey Loyka
Control-Coding Capacity of Decision Models Driven by Correlated Noise and Gaussian Application Examples. CDC (2018)
Christos K. Kourtellaris, Constantinos Psomas, Ioannis Krikidis
Stability and Throughput Analysis of Multiple Access Networks with Finite Blocklength Constraints. CoRR (2018)
Charalambos D. Charalambous, Photios A. Stavrou, Christos K. Kourtellaris, Ioannis Tzortzis
Directed Information Subject to a Fidelity. Applications to Conditionally Gaussian Processes. ECC (2018)
Photios A. Stavrou, Charalambos D. Charalambous, Christos K. Kourtellaris
Sequential Necessary and Sufficient Conditions for Capacity Achieving Distributions of Channels With Memory and Feedback. IEEE Trans. Inf. Theory 63 (11) (2017)
Christos K. Kourtellaris, Charalambos D. Charalambous, Ioannis Tzortzis
Single Letter Expression of Capacity for a Class of Channels with Memory. CoRR (2017)
Charalambos D. Charalambous, Christos K. Kourtellaris, Ioannis Tzortzis
Signalling of information in networked stochastic dynamical control systems. CDC (2017)
Charalambos D. Charalambous, Christos K. Kourtellaris, Sergey Loyka, Ioannis Tzortzis
The capacity of unstable dynamical systems-interaction of control and information transmission. ISIT (2017)
Charalambos D. Charalambous, Christos K. Kourtellaris, Ioannis Tzortzis
Information Transfer of Control Strategies: Dualities of Stochastic Optimal Control Theory and Feedback Capacity of Information Theory. IEEE Trans. Autom. Control. 62 (10) (2017)
Christos K. Kourtellaris, Ioannis Tzortzis, Charalambos D. Charalambous
Two-letter capacity formula for channels with memory and feedback. ITW (2017)
Charalambos D. Charalambous, Christos K. Kourtellaris, Ioannis Tzortzis
Hierarchical decomposition of optimal control and information strategies in control-coding capacity of stochastic systems. CDC (2017)
Charalambos D. Charalambous, Christos K. Kourtellaris, Ioannis Tzortzis
Hierarchical optimality of linear controllers-encoders-decoders operating at control-coding capacity of LQG control systems. CDC (2017)
Ioannis Tzortzis, Charalambos D. Charalambous, Themistoklis Charalambous, Christos K. Kourtellaris, Christoforos N. Hadjicostis
Robust Linear Quadratic Regulator for uncertain systems. CDC (2016)
Christos K. Kourtellaris, Charalambos D. Charalambous
Information structures of capacity achieving distribution for channels with memory and feedback. ISIT (2016)
Charalambos D. Charalambous, Christos K. Kourtellaris, Ioannis Tzortzis
Information transfer in stochastic optimal control with randomized strategies and directed information criterion. CDC (2016)
Photios A. Stavrou, Charalambos D. Charalambous, Christos K. Kourtellaris
Sequential Necessary and Sufficient Conditions for Capacity Achieving Distributions of Channels with Memory and Feedback. CoRR (2016)
Photios A. Stavrou, Charalambos D. Charalambous, Christos K. Kourtellaris
Sequential Necessary and Sufficient Conditions for optimal channel input distributions of channels with memory and feedback. ISIT (2016)
Charalambos D. Charalambous, Christos K. Kourtellaris, Sergey Loyka
Capacity Achieving Distributions & Information Lossless Randomized Strategies for Feedback Channels with Memory: The LQG Theory of Directed Information-Part II. CoRR (2016)
Charalambos D. Charalambous, Christos K. Kourtellaris
Information Structures of Extremum Problems of Feedback Capacity for General Channels with Memory. CoRR (2016)
Joseph Jean Boutros, Nicola di Pietro, Fanny Jardel, Christos K. Kourtellaris
Convolutional lattices. ACSSC (2016)
Christos K. Kourtellaris, Charalambos D. Charalambous, Joseph J. Boutros
Nonanticipative transmission for sources and channels with memory. ISIT (2015)
Christos K. Kourtellaris, Charalambos D. Charalambous
Information Structures of Capacity Achieving Distributions for Feedback Channels with Memory and Transmission Cost: Stochastic Optimal Control & Variational Equalities-Part I. CoRR (2015)
Christos K. Kourtellaris, Charalambos D. Charalambous
Capacity of Binary State Symmetric Channel with and without feedback and transmission cost. ITW (2015)
Photios A. Stavrou, Christos K. Kourtellaris, Charalambos D. Charalambous
Information Nonanticipative Rate Distortion Function and Its Applications. CoRR (2014)
Photios A. Stavrou, Christos K. Kourtellaris, Charalambos D. Charalambous
Applications of Information Nonanticipative Rate Distortion Function. CoRR (2014)
Christos K. Kourtellaris, Charalambos D. Charalambous
Capacity of the Binary State Symmetric Channel with Cost Constraint. CoRR (2014)
Photios A. Stavrou, Christos K. Kourtellaris, Charalambos D. Charalambous
Applications of information Nonanticipative Rate Distortion Function. ISIT (2014)
Christos K. Kourtellaris, Charalambos D. Charalambous, Photios A. Stavrou
General Source-Channel Matching for Sources with Memory. CoRR (2013)
Christos K. Kourtellaris, Charalambos D. Charalambous, Photios A. Stavrou
Nonanticipative Rate Distortion Function for General Source-Channel Matching CoRR (2013)
Photios A. Stavrou, Charalambos D. Charalambous, Christos K. Kourtellaris
Optimal Nonstationary Reproduction Distribution for Nonanticipative RDF on Abstract Alphabets CoRR (2013)
Photios A. Stavrou, Charalambos D. Charalambous, Christos K. Kourtellaris
Realizable Rate Distortion Function and Bayesian FIltering Theory CoRR (2012)
Photios A. Stavrou, Charalambos D. Charalambous, Christos K. Kourtellaris
Causal Rate Distortion Function on Abstract Alphabets: Optimal Reconstruction and Properties CoRR (2012)
Charalambos D. Charalambous, Christos K. Kourtellaris, Christoforos N. Hadjicostis
Optimal encoder and control strategies in stochastic control subject to rate constraints for channels with memory and feedback. CDC/ECC (2011)
Charalambos D. Charalambous, Photios A. Stavrou, Christos K. Kourtellaris
Causal Rate Distortion Function and Relations to Filtering Theory CoRR (2011)
Charalambos D. Charalambous, Photios A. Stavrou, Christos K. Kourtellaris
Causal Rate Distortion Function on Abstract Alphabets and Optimal Reconstruction Kernel CoRR (2011)
Charalambos D. Charalambous, Christos K. Kourtellaris, Christoforos N. Hadjicostis
Capacity of channels with memory and feedback: Encoder properties and dynamic programming. Allerton (2010)
Charalambos D. Charalambous, Christos K. Kourtellaris, Photios A. Stavrou
Rate distortion function with causal decoding. CDC (2010)
Charalambos D. Charalambous, Christos K. Kourtellaris, Photios A. Stavrou
Stochastic control over finite capacity channels: Causality and feedback. ECC (2009)
Charalambos D. Charalambous, Christos K. Kourtellaris, Photios A. Stavrou
Stochastic control over finite capacity channels: Causality, feedback and uncertainty. CDC (2009)
Charalambos D. Charalambous, Seddik M. Djouadi, Christos K. Kourtellaris
Statistical Analysis of Multipath Fading Channels Using Generalizations of Shot Noise. EURASIP J. Wirel. Commun. Netw. 2008 (2008)