Abstract
This article investigates the evolving requirements and challenges of modern tactical communications systems, with a particular focus on military-specific waveforms. It is imperative that these systems integrate IP technology, provide sufficient bandwidth, and maintain reliable operation in harsh environments. In designing waveforms, the key criteria include data transmission rate, coverage area, robustness and protection against jamming and detection. However, the implementation of high data transmission rates can lead to reduced coverage area, thus necessitating the use of multiple waveforms that are tailored to different operational requirements. This paper examines a part of the characteristics of narrowband and wideband waveforms operating in the frequency range from 3 MHz to 5 GHz, with channel bandwidths from 3kHz to 50 MHz and supporting data rates of up to 300 Mbps. The analysis focuses on some critical parameters, including signal-to-noise ratio, bit error rate and modulation schemes, with the objective of optimizing long-distance communications and data rate between fixed and mobile points in tactical environments.