On the Capacity of Discrete-Time Laguerre Channel

TL;DR

This paper derives new upper and lower bounds for the capacity of discrete-time Laguerre channels, which model optical systems like amplifiers and visible light communication, under various power constraints.

Contribution

It introduces novel capacity bounds for Laguerre channels, applicable to optical systems and networks with different power constraint scenarios.

Findings

Derived bounds for short-distance visible light communication systems.

Established bounds for coherent CDMA networks.

Analyzed capacity under different power constraint conditions.

Abstract

In this paper, new upper and lower bounds are proposed for the capacity of discrete-time Laguerre channel. Laguerre behavior is used to model various types of optical systems and networks such as optical amplifiers, short distance visible light communication systems with direct detection and coherent code division multiple access (CDMA) networks. Bounds are derived for short distance visible light communication systems and coherent CDMA networks. These bounds are separated in three main cases: when both average and peak power constraints are imposed, when peak power constraint is inactive and when only peak power constraint is active.