Journal ArticleDOI
Space-Air-Ground Integrated Network: A Survey
Reads0
Chats0
TLDR
This paper is the first to present the state-of-the-art of the SAGIN since existing survey papers focused on either only one single network segment in space or air, or the integration of space-ground, neglecting the Integration of all the three network segments.Abstract:
Space-air-ground integrated network (SAGIN), as an integration of satellite systems, aerial networks, and terrestrial communications, has been becoming an emerging architecture and attracted intensive research interest during the past years. Besides bringing significant benefits for various practical services and applications, SAGIN is also facing many unprecedented challenges due to its specific characteristics, such as heterogeneity, self-organization, and time-variability. Compared to traditional ground or satellite networks, SAGIN is affected by the limited and unbalanced network resources in all three network segments, so that it is difficult to obtain the best performances for traffic delivery. Therefore, the system integration, protocol optimization, resource management, and allocation in SAGIN is of great significance. To the best of our knowledge, we are the first to present the state-of-the-art of the SAGIN since existing survey papers focused on either only one single network segment in space or air, or the integration of space-ground, neglecting the integration of all the three network segments. In light of this, we present in this paper a comprehensive review of recent research works concerning SAGIN from network design and resource allocation to performance analysis and optimization. After discussing several existing network architectures, we also point out some technology challenges and future directions.read more
Citations
More filters
Journal ArticleDOI
Computation Offloading for Rechargeable Users in Space-Air-Ground Networks
TL;DR: In this article , a SAG-integrated heterogenous computation offloading architecture for the deep integration of communication and computation resources in order to maximize the sum-rate of all AIoE users is proposed.
Journal ArticleDOI
Sustainable Satellite Communications in the 6G Era: A European View for Multilayer Systems and Space Safety
Marko Höyhtyä,Sandrine Boumard,Anastasia Yastrebova,Pertti Järvensivu,Markku Kiviranta,Antti Anttonen +5 more
TL;DR: This survey paper discusses the multi-layer networking approaches in the 6G era specifically from the sustainability perspective and classify and discuss space safety paradigms that are important sustainability enablers of future satellite communications.
Journal ArticleDOI
Congestion Attack Detection in Intelligent Traffic Signal System: Combining Empirical and Analytical Methods
Yingxiao Xiang,Wenjia Niu,Endong Tong,Yike Li,Bowei Jia,Yalun Wu,Jiqiang Liu,Liang Chang,Gang Li +8 more
TL;DR: Wang et al. as mentioned in this paper proposed a congestion attack detection approach by combining empirical prediction and analytical verification, where an improved generative adversarial network is trained to predict whether a forthcoming attack will cause congestion with a high probability, and a TGRU (tree-regularized gated recurrent unit)-based approach is proposed to verify whether congestion occurs.
Journal ArticleDOI
Security of Satellite-Terrestrial Communications: Challenges and Potential Solutions
TL;DR: In this article , the authors study existing security challenges in satellite-terrestrial communication systems and discuss potential solutions for those challenges and provide important research directions to encourage future research on existing security gaps.
Journal ArticleDOI
A Lightweight Hierarchical AI Model for UAV-Enabled Edge Computing with Forest-Fire Detection Use-Case
TL;DR: In this article , a lightweight hierarchical artificial intelligence (AI) framework was proposed for early forest fire detection using the popular convolutional neural network (CNN)-based inference models in the drone.
References
More filters
Journal ArticleDOI
Network information flow
TL;DR: This work reveals that it is in general not optimal to regard the information to be multicast as a "fluid" which can simply be routed or replicated, and by employing coding at the nodes, which the work refers to as network coding, bandwidth can in general be saved.
Journal ArticleDOI
Wireless communications with unmanned aerial vehicles: opportunities and challenges
TL;DR: An overview of UAV-aided wireless communications is provided, by introducing the basic networking architecture and main channel characteristics, highlighting the key design considerations as well as the new opportunities to be exploited.
Journal ArticleDOI
A Survey of Software-Defined Networking: Past, Present, and Future of Programmable Networks
TL;DR: The SDN architecture and the OpenFlow standard in particular are presented, current alternatives for implementation and testing of SDN-based protocols and services are discussed, current and future SDN applications are examined, and promising research directions based on the SDN paradigm are explored.
Requirements for Internet Hosts - Communication Layers
TL;DR: This RFC is an official specification for the Internet community that incorporates by reference, amends, corrects, and supplements the primary protocol standards documents relating to hosts.
Journal ArticleDOI
Survey of Important Issues in UAV Communication Networks
Lav Gupta,Raj Jain,Gabor Vaszkun +2 more
TL;DR: This paper surveys the work done toward all of the outstanding issues, relating to this new class of networks, so as to spur further research in these areas.
Related Papers (5)
A Vision of 6G Wireless Systems: Applications, Trends, Technologies, and Open Research Problems
Joint Trajectory and Communication Design for Multi-UAV Enabled Wireless Networks
Qingqing Wu,Yong Zeng,Rui Zhang +2 more