增量向量高斯噪声通道的容量实现输入分布:偶时刻约束和无限或紧的支持限制
Jonah Eisen1, Ravi R Mazumdar1, Patrick Mitran1
1Department of Electrical & Computer Engineering, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada.
Entropy (Basel, Switzerland)
|August 26, 2023
概括
我们研究了高斯噪声通道的容量实现输入. 输入的分布是输入的分布.
科学领域:
- 信息理论 信息理论
- 可能性理论概率理论.
- 随机过程 随机过程
背景情况:
- 矢量值的高斯噪声通道是通信系统的基础.
- 了解输入分布对于最大化道容量至关重要.
- 辐射偶矩约束通常对输入施加.
研究的目的:
- 描述能力实现输入分布对向量值高斯噪声通道的支持.
- 分析输入域限制 (不受限制的与紧的子集) 对输入支持的影响.
- 为了确定这些产能实现支的几何和测量理论特性.
主要方法:
- 概率分布的数学分析.
- 几何测量理论概念,包括子方形和莱贝斯格测量.
- 对输入分布的辐射偶矩约束的研究.
主要成果:
- 实现产能输入的支是具有维度为n-1或更小的可计数子数组的结合.
- 当输入被限制在一个紧的子集时,这种结合变得有限.
- 支持被证明具有Lebesgue测量0并且在Rn.中没有任何密度.
结论:
- 实现容量输入的结构受到高度限制,位于低维的分流器上.
- 输入限制大大简化了支持的结构.
- 这些发现对在特定约束下设计高效的通信方案有影响.
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