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Quantum Hexagonal Quadrature Amplitude Modulation

Authors:
YoungJun Kim
Young-Chai Ko

Keywords: Quantum communication, hexagonal QAM, continuous variables, coherent states

Abstract:
In this paper, we propose the hexagonal quadrature amplitude modulation (QAM)-type modulation for continuousvariable quantum communication systems. Our proposed hexagonal QAM modulation provides less detection error, which occurs in discriminating non-orthogonal quantum states, compared to the previous modulation schemes such as phase shift keying (PSK)-type modulation or rectangular QAM-type modulation. Square root measurement (SRM) is used in the receiver to decrease the detection error probability and receiver complexity. Theoretical detection error rate for the hexagonal QAM modulation is obtained by form of square root of matrix. The detection error rate is verified by Monte Carlo simulation.

Pages: 12 to 16

Copyright: Copyright (c) IARIA, 2016

Publication date: July 24, 2016

Published in: conference

ISSN: 2308-3530

ISBN: 978-1-61208-495-4

Location: Nice, France

Dates: from July 24, 2016 to July 28, 2016