Using Waste Factor to Optimize Energy Efficiency in Multiple-Input Single-Output (MISO) and Multiple-Input Multiple-Output (MIMO) Systems

TL;DR

This paper introduces Waste Factor and Waste Figure as new metrics to evaluate and optimize energy efficiency in various MIMO and SIMO wireless communication systems, offering advantages over traditional metrics.

Contribution

It develops a new theoretical framework for Waste Factor, enabling systematic modeling of wasted power in cascaded MIMO/SIMO systems, and demonstrates its utility in assessing RAN energy efficiency.

Findings

Waste Factor provides a more comprehensive measure of power efficiency.

W outperforms conventional metrics in analyzing energy waste.

Application of W improves energy efficiency assessment in wireless networks.

Abstract

This paper introduces Waste Factor (W) and Waste Figure (WF) to assess power efficiency in any multiple-input multiple-output (MIMO) or single-input multiple-output (SIMO) or multiple-input single-output (MISO) cascaded communication system. This paper builds upon the new theory of Waste Factor, which systematically models added wasted power in any cascade for parallel systems such as MISO, SIMO, and MIMO systems, which are prevalent in current wireless networks. Here, we also show the advantage of W compared to conventional metrics for quantifying and analyzing energy efficiency. This work explores the utility of W in assessing energy efficiency in communication channels, within Radio Access Networks (RANs).