Error Rates Analysis of MIMO Space-Time Block Codes in Generalized Shadowed Fading Channels

TL;DR

This paper provides a unified, accurate, and computationally efficient analysis of bit error rates for MIMO space-time block codes in generalized shadowed fading channels with various noise models, simplifying performance evaluation.

Contribution

It introduces a unified analytical framework for error rate analysis of MIMO STBC in generalized shadowed fading and noise environments, avoiding complex special functions.

Findings

Derived simple, accurate approximate error rate expressions

Validated results with numerical evaluations and literature data

Applicable to various fading and noise scenarios without re-derivation

Abstract

This paper introduces a new and unified bit error rates performance analysis of space-time block codes (STBC) deployed in wireless systems with spatial diversity in generalized shadowed fading and noise scenarios. Specifically, we derive a simple and a very accurate approximate expressions for the average error rates of coherent modulation schemes in generalized $\eta-\mu$ and $\kappa-\mu$ shadowed fading channels with multiple input multiple output (MIMO) systems. The noise in the network is assumed to be modeled using the additive white generalized Gaussian noise (AWGGN), which encompasses the classical Laplacian and the Gaussian noise environments as special cases. The derived results obviate the need to re-derive the error rates for MIMO STBC systems under many multipath fading and noise conditions while avoiding any special functions with high computational complexity. Published results from the literature, as well as numerical evaluations, corroborate the accuracy of our derived generalized expressions.