Optimization of Information Processing in Satellite Communications: Comparative Analysis of Medium Access Protocols

Alvarez-Huarhua J.R.; Quintana-Quispe F.R.; Roman-Gonzalez A. · Proceedings of the International Astronautical Congress, IAC (2025) · DOI: 10.52202/083082-0089

Resumen

The exponential growth of satellite communications has driven the need to optimise information processing in order to enhance spectral efficiency and transmission robustness. This study explores optimisation strategies through the implementation of Frequency Division Multiple Access (FDMA) in satellite environments, benchmarking it against current medium access architectures such as Time Division Multiple Access (TDMA) and Code Division Multiple Access (CDMA). The impact of antenna size and power requirements in base station systems with microwave networks is examined, assessing both their feasibility and scalability. To validate the hypothesis that FDMA could improve message distribution in satellite communications, a comparative analysis is proposed to evaluate spectral efficiency, latency, and transmission capacity under varying traffic loads and coverage scenarios. Furthermore, an optimisation model based on subcarrier allocation is introduced, enabling greater scalability through the strategic placement of antennas at key locations. Preliminary results suggest that, although originally designed for WAN environments, FDMA could offer improved efficiency in high user-density scenarios when complemented by advanced spectral management techniques and adaptive multiplexing. This study provides an analytical framework for optimising satellite networks and paves the way for future research on the development of more efficient and sustainable communication infrastructures.

Instituciones: Universidad Nacional Tecnológica de Lima Sur