The broadcast classical–quantum capacity region of a two-phase bidirectional relaying channel

The broadcast classical–quantum capacity region of a two-phase bidirectional relaying channel We studied a three-node quantum network that enables bidirectional communication between two nodes with a half-duplex relay node for transmitting classical messages. A decode-and-forward protocol is used to perform the communication in two phases. In the first phase, the messages of two nodes are transmitted to the relay node. The capacity of the first phase is well known by previous works. In the second phase, the relay node broadcasts a re-encoded composition to the two nodes. We determine the capacity region of the broadcast phase. To the best of our knowledge, this is the first paper analyzing quantum bidirectional relay networks. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

The broadcast classical–quantum capacity region of a two-phase bidirectional relaying channel

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Publisher
Springer US
Copyright
Copyright © 2015 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-015-1065-2
Publisher site
See Article on Publisher Site

Abstract

We studied a three-node quantum network that enables bidirectional communication between two nodes with a half-duplex relay node for transmitting classical messages. A decode-and-forward protocol is used to perform the communication in two phases. In the first phase, the messages of two nodes are transmitted to the relay node. The capacity of the first phase is well known by previous works. In the second phase, the relay node broadcasts a re-encoded composition to the two nodes. We determine the capacity region of the broadcast phase. To the best of our knowledge, this is the first paper analyzing quantum bidirectional relay networks.

Journal

Quantum Information ProcessingSpringer Journals

Published: Jul 17, 2015

References

  • Quantum repeaters and quantum key distribution: analysis of secret key rates
    Abruzzo, S; Bratzik, S; Bernardes, NK; Kampermann, H; Loock, P; Bruß, D
  • Classical capacity of arbitrarily classical–quantum varying channels
    Ahlswede, R; Blinovsky, V

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