Verfahren zur Optimierung der Kapazität von Kommunikationskanälen

Details

Veröffentlichungs-Nr.

EP3926910

Aktenzeichen

EP20305672

Anmeldetag

19. Juni 2020

Veröffentlichung

15. November 2023

Erteilung

15. November 2023

Rechtsraum

EP

IPC

H04L27/34H04L1/00

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), and the communication channel (12) between the transmitter and the receiver. The transmitter (10) uses a finite set of symbols Ω = {ω₁, ..., ω_N} having respective positions on a constellation, to transmit a message including at least one symbol on said communication channel (11). The communication channel (11) is characterized by a conditional probability distribution p_Y|_X(ylx), where y is the symbol received at the receiver (12) while x is the symbol transmitted by the transmitter. More particularly, the conditional probability distribution p_Y|_X(y|x) is obtained, for each possible transmitted symbol x, by a mixture model using probability distributions represented by exponential functions. An optimized input distribution p_x(x) is computed, based on parameters of the mixture model, to define optimized symbols positions and probabilities to be used at the transmitter for optimizing the capacity of the channel.

Anmelder

Firmen

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

Land

🇳🇱 Niederlande

Fachgebiete