Software Defined Satellite Networks(SDSN) are proposed to solve the problems in traditional satellite networks, such as time-consuming configuration and inflexible traffic scheduling. The emerging application of small satellite and research of SDSN make it possible for satellite networks to provide flexible network services. Service Function Chain(SFC) can satisfy this need. In this paper, we are motivated to investigate applying SFC in the small satellite-based SDSN for service delivery. We introduce the structure of the multi-layer constellation-based SDSN. Then, we describe two deployment patterns of SFC in SDSN, the Multi-Domain(MD) pattern and the Satellite Formation(SF) pattern. We propose two algorithms, SFP-MD, and SFP-SF, to calculate the Service Function Path(SFP). We implement the algorithms and conduct contrast experiments in our prototype. Finally, we summarize the applicable conditions of two deployment patterns according to the experimental results in terms of hops, delay, and packet loss rate.
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机译：Citizen Centric Service in the Australian Department of Human Services: The Department's Experience in Engaging the Community in Co-design of Government Service Delivery and Developments in E-Government Services (澳大利亚人类服务部以公民为中心的服务：该部门在促进群体参与协同设计政府服务提供和发展在电子政府的经验)
机译：Ppp模式是推动电子政务平台健康发展的良药吗？ --来自华东地区50个城市政务app的面板数据分析 =Is the Public-Private Partnership (PPP) Model A Panacea for Promoting the Healthy Development of the Government E-Services Platform? - Panel Data Analysis of Government App from 50 Cities in East China
