TY - JOUR
T1 - Physical-Layer Security in Space Information Networks
T2 - A Survey
AU - Li, Bin
AU - Fei, Zesong
AU - Zhou, Caiqiu
AU - Zhang, Yan
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2020/1
Y1 - 2020/1
N2 - Research and processing development on satellite communications has strongly re-emerged in recent years. Following the prosperity of various wireless services provided by satellite communications, the security issue has raised growing concerns since the space information network is susceptible to be eavesdropped by illegal adversaries in such a large-scale wireless network. Recently, the physical-layer security (PLS) has emerged as an alternative security paradigm that explores the randomness of the wireless channel to achieve confidentiality and authentication. The success story of the PLS technique now spans a decade and thrives to provide a layer of defense in satellite communications. With this position, a comprehensive survey of satellite communications is conducted in this article with an emphasis on PLS. We first briefly introduce essential background and the view of the satellite Internet of Things (IoT), as well as discuss related research challenges faced by the emerging integrated network architecture. Then, we revisit the most popular satellite channel model influenced by many factors and list the commonly used secrecy performance metrics. Also, we provide an exhaustive review of state-of-the-art research activity on PLS in satellite communications, which we categorize by different architectures including land mobile satellite communication networks, hybrid satellite-terrestrial relay networks, and satellite-terrestrial integrated networks. In addition, a number of open research problems are identified as possible future research directions.
AB - Research and processing development on satellite communications has strongly re-emerged in recent years. Following the prosperity of various wireless services provided by satellite communications, the security issue has raised growing concerns since the space information network is susceptible to be eavesdropped by illegal adversaries in such a large-scale wireless network. Recently, the physical-layer security (PLS) has emerged as an alternative security paradigm that explores the randomness of the wireless channel to achieve confidentiality and authentication. The success story of the PLS technique now spans a decade and thrives to provide a layer of defense in satellite communications. With this position, a comprehensive survey of satellite communications is conducted in this article with an emphasis on PLS. We first briefly introduce essential background and the view of the satellite Internet of Things (IoT), as well as discuss related research challenges faced by the emerging integrated network architecture. Then, we revisit the most popular satellite channel model influenced by many factors and list the commonly used secrecy performance metrics. Also, we provide an exhaustive review of state-of-the-art research activity on PLS in satellite communications, which we categorize by different architectures including land mobile satellite communication networks, hybrid satellite-terrestrial relay networks, and satellite-terrestrial integrated networks. In addition, a number of open research problems are identified as possible future research directions.
KW - Fifth generation (5G) and beyond
KW - heterogeneous networks
KW - satellite Internet of Things (IoT)
KW - satellite communication
KW - security
UR - http://www.scopus.com/inward/record.url?scp=85078272057&partnerID=8YFLogxK
U2 - 10.1109/JIOT.2019.2943900
DO - 10.1109/JIOT.2019.2943900
M3 - Review article
AN - SCOPUS:85078272057
SN - 2327-4662
VL - 7
SP - 33
EP - 52
JO - IEEE Internet of Things Journal
JF - IEEE Internet of Things Journal
IS - 1
M1 - 8850067
ER -