arXiv subjects

Michail Mylonakis

Publications and source records attributed to Michail Mylonakis.

4 recordsLinked to original sources

arXiv2021

Adaptive Interference Coordination over Channels with Unknown State at the Encoder and the Decoder

We generalize the problem of controlling the interference created to an external observer while communicating over a discrete memoryless channel (DMC) which was studied in \cite{serrano:2014}. In particular, we consider the scenario where the transmission is established over a compound DMC channel with unknown state at both the encoder and the decoder. Depending on the exact state $s$ of the channel, we ask for a different level of average precision $\Delta_s$ on the establishment of the interference coordination with the external observer. For this set-up, we fully characterize the capacity region.

cs.IT↗

arXiv2020

Remote Empirical Coordination

We apply the framework of imperfect empirical coordination to a two-node setup where the action $X$ of the first node is not observed directly but via $L$ agents who observe independently impaired measurements $\hat X$ of the action. These $L$ agents, using a rate-limited communication that is available to all of them, help the second node to generate the action $Y$ in order to establish the desired coordinated behaviour. When $L<\infty$, we prove that it suffices $R_i\geq I\left(\hat X;\hat{Y}\right)$ for at least one agent whereas for $L\longrightarrow\infty$, we show that it suffices $R_i\geq I\left(\hat X;\hat Y|X\right)$ for all agents where $\hat Y$ is a random variable such that $X-\hat X-\hat Y$ and $\|p_{X,\hat Y}\left(x,y\right)-p_{X,Y}\left(x,y\right)\|_{TV}\leq \Delta$ ( $\Delta$ is the pre-specified fidelity).

cs.IT↗

arXiv2019

Empirical Coordination with Multiple Descriptions

We extend the framework of empirical coordination to a distributed setup where for a given action by nature, multiple descriptions of the action of the decoder are available. We adopt the coding strategy applied by El Gamal and Cover in \cite{gamal:1982} to get a lower bound of the coordination region. Then, we improve this region by applying the coding scheme applied by Zhang and Berger in \cite{zhang:1987}.

cs.IT↗

arXiv2019

Empirical Coordination Subject to a Fidelity Criterion

We study the problem of empirical coordination subject to a fidelity criterion for a general set-up. We prove a result which indicates a strong connection between our framework and the framework of empirical coordination developed in [1]. It turns out that when we design codes that achieve empirical coordination according to a given distribution and subject to the fidelity criterion, it is sufficient to consider codes that produce actions of the same joint type for a class of types which is close enough to our desired distribution is some sense.

cs.IT↗