Artificial Intelligence and Dimensionality Reduction: Tools for approaching future communications

TL;DR

This paper demonstrates the application of t-SNE and VAE algorithms for visualizing, clustering, and recreating communication scenarios in telecommunication data, highlighting AI's potential in future mobile communication development.

Contribution

It introduces the novel use of t-SNE and VAE for scenario visualization, classification, and recreation in telecommunication datasets, comparing with other DR techniques.

Findings

t-SNE effectively clusters different communication environments.

t-SNE outperforms PCA and Isomap in scenario visualization.

Combined t-SNE and VAE can recreate realistic communication scenarios.

Abstract

This article presents a novel application of the t-distributed Stochastic Neighbor Embedding (t-SNE) clustering algorithm to the telecommunication field. t-SNE is a dimensionality reduction (DR) algorithm that allows the visualization of large dataset into a 2D plot. We present the applicability of this algorithm in a communication channel dataset formed by several scenarios (anechoic, reverberation, indoor and outdoor), and by using six channel features. Applying this artificial intelligence (AI) technique, we are able to separate different environments into several clusters allowing a clear visualization of the scenarios. Throughout the article, it is proved that t-SNE has the ability to cluster into several subclasses, obtaining internal classifications within the scenarios themselves. t-SNE comparison with different dimensionality reduction techniques (PCA, Isomap) is also provided throughout the paper. Furthermore, post-processing techniques are used to modify communication scenarios, recreating a real communication scenario from measurements acquired in an anechoic chamber. The dimensionality reduction and classification by using t-SNE and Variational AutoEncoders (VAE) show good performance distinguishing between the recreation and the real communication scenario. The combination of these two techniques opens up the possibility for new scenario recreations for future mobile communications. This work shows the potential of AI as a powerful tool for clustering, classification and generation of new 5G propagation scenarios.