Key Technologies of Satellite Communications and Networks

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: closed (15 February 2024) | Viewed by 2064

Special Issue Editors

School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Interests: satellite communications; millimeter wave communications
Special Issues, Collections and Topics in MDPI journals
School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China
Interests: satellite communications; laser communication
Special Issues, Collections and Topics in MDPI journals
School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Interests: satellite communications; probability signal processing technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The demand for satellite communication continues to grow globally, playing a crucial role in connecting remote areas, supporting emergency communications, and improving the reliability of telecommunication networks. The rapid development of satellite communication technologies has also led to significant advancements in the fields of navigation, Earth observation, and space exploration. In this context, we are launching a call for papers to bring together experts, researchers, and stakeholders from academia and industry to share their findings, ideas, and insights on the latest trends, challenges, and potential applications of satellite communication technologies.

This call for papers aims to cover a broad range of topics related to satellite communication technologies, including, but not limited to:

  • Design and optimization of satellite communication systems.
  • Inter-satellite communication and satellite networks.
  • High-throughput satellite systems and technologies.
  • Advanced modulation and coding techniques for satellite communications.
  • Antenna design innovations for satellite communication systems.
  • Advanced architectures and technologies for the ground station.
  • Integration of satellite and terrestrial communication networks.
  • Security aspects and challenges in satellite communication.
  • Applications of satellite communication technologies in IoT and 5G networks.
  • Satellite communication in disaster and emergency management.

Dr. Jianguo Li
Dr. Yujie Lin
Dr. Xuhui Ding
Dr. Neng Ye
Guest Editors

Manuscript Submission Information

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Keywords

  • satellite communication
  • advanced modulation and coding techniques
  • antenna design

Published Papers (2 papers)

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Research

16 pages, 3726 KiB  
Article
Dynamic Traffic Grooming Based on Virtualization-Plane-Aided Optimization for Elastic Optical Satellite Networks
by Mai Yang, Qi Zhang, Haipeng Yao, Xiangjun Xin, Ran Gao, Feng Tian, Yi Zhao and Fu Wang
Electronics 2024, 13(3), 610; https://doi.org/10.3390/electronics13030610 - 1 Feb 2024
Viewed by 645
Abstract
With the increase in global wireless traffic, the use of large-scale satellite networking to provide ubiquitous access is one of the essential trends of future 6G network development. Elastic optical satellite networks (EOSNs) are widely considered a flexible solution for future satellite communication. [...] Read more.
With the increase in global wireless traffic, the use of large-scale satellite networking to provide ubiquitous access is one of the essential trends of future 6G network development. Elastic optical satellite networks (EOSNs) are widely considered a flexible solution for future satellite communication. However, with the continuous proliferation of network devices and users, the growing disparity between user demands and the limited bandwidth and capacity of the network is becoming increasingly noticeable. This has led to issues such as constrained network resource utilization and resource fragmentation. Therefore, EOSNs must efficiently address the challenge of allocating scarce bandwidth resources. Effective traffic grooming methods will be applied to EOSNs to solve the problem of bandwidth shortage. This paper proposed a dynamic traffic grooming algorithm based on virtualization-plane-aided optimization (DTG-VPO) to facilitate the bandwidth allocation for EOSNs. Firstly, the nodes of the alternative paths were graded, and the weights of the subsequent hop links were modified. Then, the path was evaluated using link weights, alternative paths were selected in the virtual and physical topologies, respectively, and a path set was constructed. Finally, a resource block evaluation parameter was designed to quantify the quality of candidate resource blocks and rank them. A series of simulations have evaluated the traffic-blocking probability and wavelength utilization under different traffic loads. The link resource was more fully utilized compared with other traffic grooming algorithms. The blocking probability can be reduced by 75%, while wavelength utilization can be improved by 8.1%. Full article
(This article belongs to the Special Issue Key Technologies of Satellite Communications and Networks)
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20 pages, 5915 KiB  
Article
Traffic-Predictive Routing Strategy for Satellite Networks
by Zhiguo Liu, Zhengxia Liu, Lin Wang and Weijie Li
Electronics 2024, 13(1), 6; https://doi.org/10.3390/electronics13010006 - 19 Dec 2023
Viewed by 942
Abstract
To address the issues of uneven satellite network load and unstable link connections, a globally adaptive satellite network routing strategy based on traffic prediction (G-AODV) is proposed by enhancing the existing Ad hoc On-Demand Distance Vector Routing (AODV) protocol. To prevent heavily loaded [...] Read more.
To address the issues of uneven satellite network load and unstable link connections, a globally adaptive satellite network routing strategy based on traffic prediction (G-AODV) is proposed by enhancing the existing Ad hoc On-Demand Distance Vector Routing (AODV) protocol. To prevent heavily loaded nodes from becoming intermediate nodes, G-AODV introduces a traffic prediction mechanism in the route discovery phase. The routing request packet adopts the corresponding forwarding control policy based on the comparison between the predicted traffic load value at the next moment and the dynamic threshold. At the same time, a path replacement strategy is adopted to replace paths before node congestion occurs to achieve load balancing. Considering the unstable characteristics of the satellite chain that easily breaks, the route maintenance phase selects a path repair method by judging the node stability to avoid secondary breaks in the route. The simulation results show that in scenarios with different packet delivery rates, compared with the three comparative routing strategies, the packet delivery rate of G-AODV is increased by up to 20%, the packet loss rate is reduced by 22%, and the end-to-end delay is significantly reduced. In scenarios with different communication connection pairs, G-AODV’s packet delivery rate increased by up to 20%, the packet loss rate decreased by 18%, and the end-to-end delay was still reduced. Full article
(This article belongs to the Special Issue Key Technologies of Satellite Communications and Networks)
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