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Near-capacity code design for entanglement-assisted classical communication over quantum depolarizing channels

Babar, Zunaira, Ng, Soon Xin and Hanzo, Lajos (2013) Near-capacity code design for entanglement-assisted classical communication over quantum depolarizing channels IEEE Transactions on Communications, 61, (12), pp. 4801-4807. (doi:10.1109/TCOMM.2013.111013.130035).

Record type: Article

Abstract

We have conceived a near-capacity code design for entanglement-assisted classical communication over the quantum depolarizing channel. The proposed system relies on efficient near-capacity classical code designs for approaching the entanglement-assisted classical capacity of a quantum depolarizing channel. It incorporates an Irregular Convolutional Code (IRCC), a Unity Rate Code (URC) and a soft-decision aided Superdense Code (SD), which is hence referred to as an IRCC-URC-SD arrangement. Furthermore, the entanglement-assisted classical capacity of an N-qubit superdense code transmitted over a depolarizing channel is invoked for benchmarking. It is demonstrated that the proposed system operates within 0.4 dB of the achievable noise limit for both 2-qubit as well as 3-qubit SD schemes. More specifically, our design exhibits a deviation of only 0.062 and 0.031 classical bits per channel use from the corresponding 2-qubit and 3-qubit capacity limits, respectively. The proposed system is also benchmarked against the classical convolutional and turbo codes.

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More information

e-pub ahead of print date: 18 November 2013
Published date: December 2013
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 359730
URI: http://eprints.soton.ac.uk/id/eprint/359730
PURE UUID: 5c906d44-d209-47f2-a54c-a0c2d593e7bd

Catalogue record

Date deposited: 12 Nov 2013 11:37
Last modified: 18 Jul 2017 03:18

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Contributors

Author: Zunaira Babar
Author: Soon Xin Ng
Author: Lajos Hanzo

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