Outage Probability of MRC for κ-μ Shadowed Fading Channels under Co-Channel Interference.

Changfang Chen,Minglei Shu,Yinglong Wang,Chongqing Zhang,Ming Yang,Houbing Song

doi:10.1371/journal.pone.0166528

Changfang Chen, Minglei Shu + Show 4 more

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https://doi.org/10.1371/journal.pone.0166528

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Abstract

In this paper, exact closed-form expressions are derived for the outage probability (OP) of the maximal ratio combining (MRC) scheme in the κ-μ shadowed fading channels, in which both the independent and correlated shadowing components are considered. The scenario assumes the received desired signals are corrupted by the independent Rayleigh-faded co-channel interference (CCI) and background white Gaussian noise. To this end, first, the probability density function (PDF) of the κ-μ shadowed fading distribution is obtained in the form of a power series. Then the incomplete generalized moment-generating function (IG-MGF) of the received signal-to-interference-plus-noise ratio (SINR) is derived in the closed form. By using the IG-MGF results, closed-form expressions for the OP of MRC scheme are obtained over the κ-μ shadowed fading channels. Simulation results are included to validate the correctness of the analytical derivations. These new statistical results can be applied to the modeling and analysis of several wireless communication systems, such as body centric communications.

Highlights

For wireless communication systems, diversity combining is an effective strategy to improve the performance with multipath fading and co-channel interference (CCI) [1]–[3]
We study the outage probability of the sum of the independent or correlated non-identically distributed squared κ − μ shadowed random variables in presence of CCI and the background noise
This paper investigates the outage probability of the κ − μ shadowed fading model in presence of CCI and the background noise

Summary

Introduction

Diversity combining is an effective strategy to improve the performance with multipath fading and co-channel interference (CCI) [1]–[3]. We study the outage probability of the sum of the independent or correlated non-identically distributed squared κ − μ shadowed random variables in presence of CCI and the background noise. Based on the IG-MGF analysis, closed-form expressions for the OP of MRC can be derived with independent or correlated shadowed components in κ − μ shadowed fading channels.

Results

Conclusion