Physical-Layer Security in Space Information Networks: A Survey

Li, Bin; Fei, Zesong; Zhou, Caiqiu; Zhang, Yan

doi:10.1109/jiot.2019.2943900

Cited by 185 publications

(92 citation statements)

References 120 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…So it has the potential to execute the computation tasks uploaded from HAPs. The LEO satellite is equipped with multiple receive antennas operating in the Ka band, and is also connected to a terrestrial gateway via feeder link, providing access to core networks [9]. Here, a proper minimum elevation angle of communications for the LEO satellite is adopted to guarantee the entire coverage of all the HAPs during time horizon T .…”

Section: A Network Modelmentioning

confidence: 99%

Satellite-Aerial Integrated Computing in Disasters: User Association and Offloading Decision

Zhang¹,

Zhang²,

Guo³

et al. 2020

Preprint

View full text Add to dashboard Cite

In this paper, a satellite-aerial integrated computing (SAIC) architecture in disasters is proposed, where the computation tasks from two-tier users, i.e., ground/aerial user equipments, are either locally executed at the high-altitude platforms (HAPs), or offloaded to and computed by the Low Earth Orbit (LEO) satellite. With the SAIC architecture, we study the problem of joint two-tier user association and offloading decision aiming at the maximization of the sum rate. The problem is formulated as a 0-1 integer linear programming problem which is NP-complete. A weighted 3-uniform hypergraph model is obtained to solve this problem by capturing the 3D mapping relation for two-tier users, HAPs, and the LEO satellite. Then, a 3D hypergraph matching algorithm using the local search is developed to find a maximum-weight subset of vertex-disjoint hyperedges. Simulation results show that the proposed algorithm has improved the sum rate when compared with the conventional greedy algorithm.

show abstract

Section: A Network Modelmentioning

confidence: 99%

Satellite-Aerial Integrated Computing in Disasters: User Association and Offloading Decision

Zhang¹,

Zhang²,

Guo³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Satellite communication: This is another area that has become a trend in recent PLS research, and a couple of interesting works have been published in [ 18 , 19 , 20 , 21 ]. Vasquez et al.…”

Section: Introductionmentioning

confidence: 99%

“…Another study [ 19 ] proposed the inter-satellite communication of small satellite systems. A comprehensive overview of PLS in space information networks is given in [ 21 ]. They proposed the integration of satellite and IoT to form a satellite-based IoT and also discussed current technologies dedicated to PLS in land mobile satellite communication networks.…”

Section: Introductionmentioning

confidence: 99%

An Overview of Key Technologies in Physical Layer Security

Sanenga

Mapunda

Jacob

et al. 2020

Entropy

View full text Add to dashboard Cite

The open nature of radio propagation enables ubiquitous wireless communication. This allows for seamless data transmission. However, unauthorized users may pose a threat to the security of the data being transmitted to authorized users. This gives rise to network vulnerabilities such as hacking, eavesdropping, and jamming of the transmitted information. Physical layer security (PLS) has been identified as one of the promising security approaches to safeguard the transmission from eavesdroppers in a wireless network. It is an alternative to the computationally demanding and complex cryptographic algorithms and techniques. PLS has continually received exponential research interest owing to the possibility of exploiting the characteristics of the wireless channel. One of the main characteristics includes the random nature of the transmission channel. The aforesaid nature makes it possible for confidential and authentic signal transmission between the sender and the receiver in the physical layer. We start by introducing the basic theories of PLS, including the wiretap channel, information-theoretic security, and a brief discussion of the cryptography security technique. Furthermore, an overview of multiple-input multiple-output (MIMO) communication is provided. The main focus of our review is based on the existing key-less PLS optimization techniques, their limitations, and challenges. The paper also looks into the promising key research areas in addressing these shortfalls. Lastly, a comprehensive overview of some of the recent PLS research in 5G and 6G technologies of wireless communication networks is provided.

show abstract

“…Wireless communication has attracted increasing attention in recent years. However, wireless communication occurs in an open environment and broadcasts information to all users in free space [ 1 , 2 ]. Therefore, wireless communication security has become a serious problem in both civil and military fields.…”

Section: Introductionmentioning

confidence: 99%

Spatial Modulation and MP-WFRFT-Aided Multi-Beam Wireless Communication Scheme Based On Random Frequency Diverse Array

Gao

Qiu

Zhou

2020

Sensors

View full text Add to dashboard Cite

A security-enhanced, spectral-efficient, and power-efficient multi-beam wireless communication scheme based on random frequency diverse array (RFDA) is proposed in this paper. (AN)-aided directional modulation (DM) schemes. Furthermore, with the aid of spatial modulation (SM) technology and cooperative legitimate users (LUs), we can transmit more information bits by the use of LU number informations than the single modulation symbols. Unlike conventional zero-forcing (ZF) beamforming for multi-beam DM, we design a FDA beamforming vector for each LU based on the minimum transmit power method. Numerical simulations show that (1) the proposed scheme is power-efficient compared to the conventional schemes, (2) the proposed scheme can transmit more information bits than the conventional schemes, and (3) the proposed scheme can ensure communication security when eavesdroppers (Eves) are proximal to LUs or even in same locations.

show abstract

Physical-Layer Security in Space Information Networks: A Survey

Cited by 185 publications

References 120 publications

Satellite-Aerial Integrated Computing in Disasters: User Association and Offloading Decision

Satellite-Aerial Integrated Computing in Disasters: User Association and Offloading Decision

An Overview of Key Technologies in Physical Layer Security

Spatial Modulation and MP-WFRFT-Aided Multi-Beam Wireless Communication Scheme Based On Random Frequency Diverse Array

Contact Info

Product

Resources

About