On the Capacity of Generalized Quadrature Spatial Modulation
Information Theory
2023-09-12 v1 Signal Processing
math.IT
Abstract
In this letter, the average mutual information (AMI) of generalized quadrature spatial modulation (GQSM) is first derived for continuous-input continuous-output channels. Our mathematical analysis shows that the calculation error induced by Monte Carlo integration increases exponentially with the signal-to-noise ratio. This nature of GQSM is resolved by deriving a closed-form expression. The derived AMI is compared with other related SM schemes and evaluated for different antenna activation patterns. Our results show that an equiprobable antenna selection method slightly decreases AMI of symbols, while the method significantly improves AMI in total.
Keywords
Cite
@article{arxiv.2309.04986,
title = {On the Capacity of Generalized Quadrature Spatial Modulation},
author = {Kein Yukiyoshi and Naoki Ishikawa},
journal= {arXiv preprint arXiv:2309.04986},
year = {2023}
}
Comments
5 pages, 5 figures