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A Survey on Network Security issues in Space Internet
Abstract Space Internet, which integrates satellite communication networks, aerial networks, terrestrial networks, and marine communication networks, has been an emerging architecture and attracted intensive research interest during the past years. In consideration of its cooperation characteristics of multi-layer networks, open communication environment, and time-varying topologies, Space Internet faces many unprecedented security challenges. We provide a detailed survey of recent research works on network security issues in Space Internet in the aspects of security threats and defense countermeasures. To the best of our knowledge, we are the first to present the state-of-the-art of security for Space Internet, since existing surveys focused either on a certain segment or on several segments of the integrated network. We first briefly introduce the essential background and the view of the Space Internet, as well as discuss the related security challenges faced by the emerging integrated network architecture. Then, we present a comprehensive review of recent research works concerning network security issues in Space Internet, which we categorize by different research directions. Finally, several future challenges and the respective open research topics are described. Keywords: space internet; integrated network; security Research Briefs on Information & Communication Technology Evolution (ReBICTE)
DOI: 10.22667/ReBiCTE.2021.10.31.012 |