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Sensors (Basel). 2019 Feb 18;19(4). pii: E831. doi: 10.3390/s19040831.

SatEC: A 5G Satellite Edge Computing Framework Based on Microservice Architecture.

Yan L1,2,3, Cao S4,5, Gong Y6,7, Han H8,9,10, Wei J11,12,13, Zhao Y14,15,16, Yang S17,18,19.

Author information

1
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. yanlei@csu.ac.cn.
2
Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. yanlei@csu.ac.cn.
3
University of Chinese Academy of Sciences, Beijing 100049, China. yanlei@csu.ac.cn.
4
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. caosuzhi@csu.ac.cn.
5
Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. caosuzhi@csu.ac.cn.
6
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. gys@csu.ac.cn.
7
Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. gys@csu.ac.cn.
8
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. hanhao17@csu.ac.cn.
9
Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. hanhao17@csu.ac.cn.
10
University of Chinese Academy of Sciences, Beijing 100049, China. hanhao17@csu.ac.cn.
11
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. weijunyong17@csu.ac.cn.
12
Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. weijunyong17@csu.ac.cn.
13
University of Chinese Academy of Sciences, Beijing 100049, China. weijunyong17@csu.ac.cn.
14
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. zhaoyi17@csu.ac.cn.
15
Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. zhaoyi17@csu.ac.cn.
16
University of Chinese Academy of Sciences, Beijing 100049, China. zhaoyi17@csu.ac.cn.
17
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. yangshuling17@csu.ac.cn.
18
Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094, China. yangshuling17@csu.ac.cn.
19
University of Chinese Academy of Sciences, Beijing 100049, China. yangshuling17@csu.ac.cn.

Abstract

As outlined in the 3Gpp Release 16, 5G satellite access is important for 5G network development in the future. A terrestrial-satellite network integrated with 5G has the characteristics of low delay, high bandwidth, and ubiquitous coverage. A few researchers have proposed integrated schemes for such a network; however, these schemes do not consider the possibility of achieving optimization of the delay characteristic by changing the computing mode of the 5G satellite network. We propose a 5G satellite edge computing framework (5GsatEC), which aims to reduce delay and expand network coverage. This framework consists of embedded hardware platforms and edge computing microservices in satellites. To increase the flexibility of the framework in complex scenarios, we unify the resource management of the central processing unit (CPU), graphics processing unit (GPU), and field-programmable gate array (FPGA); we divide the services into three types: system services, basic services, and user services. In order to verify the performance of the framework, we carried out a series of experiments. The results show that 5GsatEC has a broader coverage than the ground 5G network. The results also show that 5GsatEC has lower delay, a lower packet loss rate, and lower bandwidth consumption than the 5G satellite network.

KEYWORDS:

Integrated Terrestrial-Satellite Networks; edge computing; microservices; on-board data processing

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