The Quantum MAC with Cribbing Encoders

Uzi Pereg, Christian Deppe, Holger Boche

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

Communication over a quantum multiple-access channel (MAC) with cribbing encoders is considered, whereby Transmitter 2 performs a measurement on a system that is entangled with Transmitter 1. Based on the no-cloning theorem, perfect cribbing is impossible. This leads to the introduction of a MAC model with noisy cribbing. In the causal and non-causal cribbing scenarios, Transmitter 2 performs the measurement before the input of Transmitter 1 is sent through the channel. Hence, Transmitter 2's cribbing may inflict a "state collapse"for Transmitter 1. Achievable regions are derived for each setting. Furthermore, a regularized capacity characterization is established for robust cribbing, i.e. when the cribbing system contains all the information of the channel input, and a partial decode-forward region for non-robust cribbing. For the classical-quantum (c-q) MAC with cribbing encoders, the capacity region is determined with perfect cribbing of the classical input, and a cutset region is derived for noisy cribbing.

OriginalspracheEnglisch
Titel2022 IEEE International Symposium on Information Theory, ISIT 2022
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers Inc.
Seiten1076-1081
Seitenumfang6
ISBN (elektronisch)9781665421591
DOIs
PublikationsstatusVeröffentlicht - 2022
Veranstaltung2022 IEEE International Symposium on Information Theory, ISIT 2022 - Espoo, Finnland
Dauer: 26 Juni 20221 Juli 2022

Publikationsreihe

NameIEEE International Symposium on Information Theory - Proceedings
Band2022-June
ISSN (Print)2157-8095

Konferenz

Konferenz2022 IEEE International Symposium on Information Theory, ISIT 2022
Land/GebietFinnland
OrtEspoo
Zeitraum26/06/221/07/22

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