Multiuser detection in a quantum channel

J. Concha, H. Poor
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引用次数: 2

Abstract

The use of multiuser detection techniques in multiple access optical channels has been studied in the literature, with emphasis on optical CDMA. In general, it has been assumed that the optical detection is carried out by p-i-n diodes, which count the photons present in the field. However, the theory of quantum detection indicates that other measurements might yield significantly smaller error probabilities. In this paper, we show by example that this can happen in the multiple-access case. We also note that the quantum multiuser detection problem differs from the classical one, in that quantum measurement precludes the use of matched filter banks for non-orthogonal signals.
量子信道中的多用户检测
多用户检测技术在多址光信道中的应用已经在文献中进行了研究,重点是光CDMA。一般来说,假设光学检测是由p-i-n二极管进行的,该二极管对存在于场中的光子进行计数。然而,量子探测理论表明,其他测量可能产生更小的误差概率。在本文中,我们通过实例说明了这种情况在多址情况下是可以发生的。我们还注意到量子多用户检测问题不同于经典问题,因为量子测量排除了对非正交信号使用匹配滤波器组。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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