论文标题
统一计算CQ-MAC来源总和的方法
Unified approach for computing sum of sources over CQ-MAC
论文作者
论文摘要
我们考虑在经典的量化多元访问通道（CQ-MAC）上传达两个经典源的通用双变量函数的任务。在CQ-MAC的编码器上观察到这两个来源，而解码器的目的是从接收到的量子状态重建双变量函数。受到针对类似古典环境开发的技术的启发，并采用了为经典量词设置开发的同时（联合）解码技术，我们建议和分析基于代数结构化和非结构化代码的融合的编码方案。该编码方案允许利用来源和不对称的对称结构。我们得出了一组新的足够条件，这些条件严格扩大了任何给定的CQ-MAC最大的已知来源集（能够传达双变量函数）。我们根据单字母量子信息理论数量提供这些条件。
We consider the task of communicating a generic bivariate function of two classical sources over a Classical-Quantum Multiple Access Channel (CQ-MAC). The two sources are observed at the encoders of the CQ-MAC, and the decoder aims at reconstructing a bivariate function from the received quantum state. Inspired by the techniques developed for the analogous classical setting, and employing the technique of simultaneous (joint) decoding developed for the classical-quantum setting, we propose and analyze a coding scheme based on a fusion of algebraic structured and unstructured codes. This coding scheme allows exploiting both the symmetric structure common amongst the sources and the asymmetries. We derive a new set of sufficient conditions that strictly enlarges the largest known set of sources (capable of communicating the bivariate function) for any given CQ-MAC. We provide these conditions in terms of single-letter quantum information-theoretic quantities.
