Efficient Data Compression with Error Bound Guarantee in Wireless Sensor Networks

TL;DR

This paper introduces an unsupervised neural network-based data compression scheme with error bounds for wireless sensor networks, improving efficiency and accuracy in data aggregation.

Contribution

It presents a novel autoencoder-based framework that adaptively compresses data with guaranteed error bounds, tailored for wireless sensor network applications.

Findings

Outperforms traditional compression methods in efficiency

Provides reliable error bounds for data reconstruction

Effective in real-world sensor data scenarios

Abstract

We present a data compression and dimensionality reduction scheme for data fusion and aggregation applications to prevent data congestion and reduce energy consumption at network connecting points such as cluster heads and gateways. Our in-network approach can be easily tuned to analyze the data temporal or spatial correlation using an unsupervised neural network scheme, namely the autoencoders. In particular, our algorithm extracts intrinsic data features from previously collected historical samples to transform the raw data into a low dimensional representation. Moreover, the proposed framework provides an error bound guarantee mechanism. We evaluate the proposed solution using real-world data sets and compare it with traditional methods for temporal and spatial data compression. The experimental validation reveals that our approach outperforms several existing wireless sensor network's data compression methods in terms of compression efficiency and signal reconstruction.