Integrated satellite-terrestrial networks can enable seamless global communication coverage while providing rapid responses to areas requiring emergency communications. However, existing satellite-terrestrial links are severely degraded, making it difficult to guarantee communication reliability and resulting in extremely poor throughput. What’s worse, satellite-based relay solutions for satellite-terrestrial information interaction are scarce which has limited support for emergency communications between multiple terminals in different areas. In this paper, a comprehensive satellite-terrestrial information interaction architecture is proposed integrating hybrid automatic repeat request (HARQ), cooperative communication, and network coding to address the poor throughput and low reliability of existing networks. Then, we present the relevant mechanism and process of this framework for multi-user information interaction in different areas. To evaluate the performance of this scheme, the outage probability of satellite-terrestrial links and the throughput of this system are derived and analyzed, respectively. The simulation results demonstrate that this approach can effectively reduce the link outage probability and significantly improve the system throughput compared to traditional methods.
A High-throughput Cooperative Network Coding HARQ Transmission Scheme for Integrated Satellite-Terrestrial Networks
2023-10-10
1109768 byte
Conference paper
Electronic Resource
English