Nuo Chen, Yujie Song, Yue Cao, Zhili Sun, Bo Zhao, Mi Wang, Debiao He, Guojun Peng
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Network-Layer Perspectives on Satellite–Terrestrial Integrated Networks in 6G: A Comprehensive Review
Satellite–terrestrial networks have garnered significant attention in recent years and are extensively applied in intelligent transportation and emergency rescue. This paper provides a comprehensive review of the latest research advancements in satellite–terrestrial integrated network (STIN) technologies from a network perspective, dividing STIN technologies into three categories according to network service flows—namely, topology maintenance, network routing, and orchestration transmission technologies. Furthermore, a novel network-layer perspective is considered to examine the applications of STINs across various domains, along with related frameworks, platforms, simulators, and datasets. Finally, this paper explores the mainstream research directions in STIN technologies, with an innovative focus on the network layer. It reviews the existing literature, outlines future trends, and discusses opportunities for collaboration with related fields.
期刊介绍:
Engineering, an international open-access journal initiated by the Chinese Academy of Engineering (CAE) in 2015, serves as a distinguished platform for disseminating cutting-edge advancements in engineering R&D, sharing major research outputs, and highlighting key achievements worldwide. The journal's objectives encompass reporting progress in engineering science, fostering discussions on hot topics, addressing areas of interest, challenges, and prospects in engineering development, while considering human and environmental well-being and ethics in engineering. It aims to inspire breakthroughs and innovations with profound economic and social significance, propelling them to advanced international standards and transforming them into a new productive force. Ultimately, this endeavor seeks to bring about positive changes globally, benefit humanity, and shape a new future.