On the Performance of Integrated Satellite-Terrestrial Maritime Communications

2026-07-13

AI Summary

This study addresses the challenges of insufficient coverage and inadequate rate guarantees for both near-shore and far-shore users in complex maritime environments by developing an integrated space-terrestrial maritime communication system that synergistically combines shore-based base stations with low Earth orbit (LEO) satellites. The work presents the first joint modeling of coverage probability and transmission rate for these two user categories, leveraging stochastic geometry, asymptotic analysis, and convex optimization to devise a power allocation algorithm that maximizes coverage probability under minimum rate constraints. Theoretical analysis and simulations demonstrate excellent agreement, confirming that the proposed algorithm significantly enhances coverage performance for near-shore users while effectively satisfying the minimum rate requirements for both near-shore and far-shore users.

Abstract

In this paper, we present an integrated terrestrial and satellite maritime communication system, where a shorebased terrestrial base station (TBS) and a low Earth orbit (LEO) satellite cooperatively provide wide-area communication services to maritime users. We conduct performance analysis for the integrated satellite-terrestrial maritime communication system. Specifically, we analyze the transmission rate and coverage probability of near-shore and off-shore users respectively according to the maritime communication environment. Besides, in order to better understand the impact of some key parameters, we also make asymptotic analysis in some special cases. Further, we design an optimization algorithm to maximize the coverage probability of near-shore users by adjusting the transmission power of TBS and the LEO satellite, while ensuring the both off-shore and near-shore users can meet the minimum communication rate requirements. Finally, extensive numerical analysis results verify the accuracy of the theoretical results and the effectiveness of the proposed optimization algorithm in the maritime communication system.

Problem

• satellite-terrestrial integration
• maritime communications
• coverage probability
• transmission rate
• LEO satellite

Innovation

• integrated satellite-terrestrial communication
• maritime communications
• coverage probability optimization
• LEO satellite
• power allocation