Separating the Effect of Independent Interference Sources with Rayleigh Faded Signal Link: Outage Analysis and Applications

TL;DR

This paper presents a mathematical decomposition of outage probability in wireless links with Rayleigh fading, simplifying analysis of interference effects and aiding spectrum sharing and interference power studies.

Contribution

It introduces a novel decomposition method for outage probability with independent interference sources, simplifying statistical analysis in wireless communication systems.

Findings

Outage probability can be expressed as a sum of individual source outages.

The decomposition simplifies analysis of spectrum sharing scenarios.

Applications include interference power sum analysis and spectrum management.

Abstract

We show that, for independent interfering sources and a signal link with exponentially distributed received power, the total probability of outage can be decomposed as a simple expression of the outages from the individual interfering sources. We give a mathematical proof of this result, and discuss some immediate implications, showing how it results in important simplifications to statistical outage analysis. We also discuss its application to two active topics of study: spectrum sharing, and sum of interference powers (e.g., lognormal) analysis.