Optimierung der Kapazität eines Kommunikationskanals unter Verwendung eines Dirichlet-Verfahrens

Details

Veröffentlichungs-Nr.

EP3926903

Aktenzeichen

EP20305674

Anmeldetag

19. Juni 2020

Veröffentlichung

5. Juli 2023

Erteilung

5. Juli 2023

Rechtsraum

EP

IPC

H04L25/03H04L25/02

Abstract

The invention relates to a method for optimizing a capacity of a communication channel in a communication system comprising at least a transmitter (10), a receiver (11), said communication channel (12) between the transmitter and the receiver, and a channel conditional probability distribution estimator (13). The transmitter (10) transmits messages conveyed by a signal associated with a transmission probability according to an input signal probability distribution estimated by said estimator (13). The transmitter (10) takes at least the messages as inputs and outputs the signal to be transmitted on the channel (12). The channel takes the transmitted signal as an input and outputs a received signal which is processed at the receiver (11) in order to decode the transmitted message. The probability distribution, noted p_Y|X(y|x), relates to an output Y, corresponding to the received signal, given an input X which corresponds to the transmitted signal X, and represents thus a channel conditional probability distribution of a probability of outputting a received signal Y, when the transmitted signal X is given. The probability distribution is estimated as an approximation of the channel conditional probability distribution p_Y|X(y|x) by using a functional basis of probability distributions, the channel conditional probability distribution being thus approximated, for each possible signal sent by the transmitter, by a mixture model with mixing probability distribution from said functional basis. The probability distribution for each possible transmitted signal is then estimated from at least output signals received at the receiver, and by using a collapsed Gibbs sampling relying on a Dirichlet process.

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Firmen

Mitsubishi Electric R&D Centre Europe B.V.
Mitsubishi Electric Corporation

Land

🇳🇱 Niederlande

Fachgebiete