Repeaters in Relativistic Communications

Author

Garcia-Escartin, Juan Carlos ; Chamorro-Posada, Pedro

Author_Institution

Departamento de Teor??a de la Se??al y Comunicaciones e Ingenier??a Telem??tica, Universidad de Valladolid, Paseo Belen n° 15 Valladolid, Spain

Volume

1

Issue

2

fYear

2015

fDate

6/1/2015 12:00:00 AM

Firstpage

158

Lastpage

163

Abstract

The communication efficiency between a transmitter and a receiver is affected by motion and the presence of gravitational fields. We study the effect of regenerating the signal in intermediate repeaters in different relativistic scenarios where relativistic effects on communication can become relevant, like ships moving at relativistic speeds or in the proximity of black holes. Without any repeater, a ship leaving the solar system at relativistic speed would be more difficult to contact than the same ship, in the same location, but at rest with respect to the other side of communication on Earth. We show the optimal frames for the repeaters in this and other scenarios and compare the result to communication with nonrelativistic repeaters.

Keywords

Doppler effect; Marine vehicles; Observers; Receivers; Repeaters; Signal to noise ratio; Transmitters; Information Theory; Noisy channel theorem; Relativity; information theory; interstellar communication; noisy channel theorem; repeaters;

fLanguage

English

Journal_Title

Molecular, Biological and Multi-Scale Communications, IEEE Transactions on

Publisher

ieee

Type

jour

DOI

10.1109/TMBMC.2015.2501742

Filename

7331289