论文标题
两用户光学强度多个访问通道的分布分解和总容量结果
Distribution Decomposition and Sum-Capacity Results of Two-User Optical Intensity Multiple Access Channels
论文作者
论文摘要
本文研究了具有每个用户峰值或/和平均强度约束的两用户光学强度多个访问通道的总容量。通过从某些最大粒子分布的分解中利用工具，我们在总容量上得出了几个下限。在高信噪比（SNR）方向上，某些边界渐近匹配或接近总容量，从而缩小或减少了现有的间隙到高-SNR渐近级别的能力。在中等SNR处，一些界限也很接近求和容量。
This paper investigates the sum-capacity of two-user optical intensity multiple access channels with per-user peak- or/and average-intensity constraints. By leveraging tools from the decomposition of certain maxentropic distributions, we derive several lower bounds on the sum-capacity. In the high signal-to-noise ratio (SNR) regime, some bounds asymptotically match or approach the sum-capacity, thus closing or reducing the existing gaps to the high-SNR asymptotic sum-capacity. At moderate SNR, some bounds are also fairly close to the sum-capacity.
