Non-Asymptotic Capacity Upper Bounds for the Discrete-Time Poisson Channel With Positive Dark Current

被引：1

作者：

Cheraghchi, Mahdi ^{[1
]}

Ribeiro, Joao ^{[2
]}

机构：

[1] Univ Michigan, EECS Dept, Ann Arbor, MI 48109 USA

[2] Carnegie Mellon Univ, CS Dept, Pittsburgh, PA 15213 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2021年 / 25卷 / 12期

基金：

美国国家科学基金会;

关键词：

Upper bound; Dark current; Random variables; Photonics; Integral equations; Channel capacity; Receivers; Optical communication; discrete-time poisson channel; channel capacity; dark current; EFFICIENCY;

D O I：

10.1109/LCOMM.2021.3120706

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We derive improved and easily computable upper bounds on the capacity of the discrete-time Poisson channel under an average-power constraint and an arbitrary constant dark current term. This is accomplished by combining a general convex duality framework with a modified version of the digamma distribution considered in previous work of the authors.

引用

页码：3829 / 3832

页数：4

共 16 条

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