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 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 on high-SNR asymptotic sum-capacity. At moderate SNR, some bounds are also fairly close to the sum-capacity.
翻译:本文调查了双用户光学密集度多进入通道的总容量,并规定了每个用户的峰值或/和平均强度限制。通过利用某些最大有机性分布分解的工具,我们从总容量的分解中得出了几个较低的界限。在高信号-噪音比率制度中,一些界限与总容量不相匹配,或接近总容量,从而缩小或缩小了高科学NR无药用总容量的现有差距。在中度国家情报局,有些界限也相当接近总容量。</s>