Satellite - A New Opportunity for Broadband Access

Fidler, A.; Hernandez, G.; Lalovic, M.; Pell, T.; Rose, Ian

doi:10.1049/pbbt005e_ch2

Cited by 4 publications

(5 citation statements)

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“…The users use their personalized handheld satellite terminals in personal satellite communication. Multimedia content delivery to the end-user or the edge of the network using satellite broadband was discussed in [13]. Authors of [13] reviewed different satellite topologies and underlying protocols for broadband applications by exploiting the broadcasting and ubiquitous coverage characteristics of satellites.…”

Section: Related Workmentioning

confidence: 99%

“…Multimedia content delivery to the end-user or the edge of the network using satellite broadband was discussed in [13]. Authors of [13] reviewed different satellite topologies and underlying protocols for broadband applications by exploiting the broadcasting and ubiquitous coverage characteristics of satellites. The multimedia delivery services using TCP were described in [14] where the performance of TCP and enhanced proxies over the satellite were investigated.…”

Section: Related Workmentioning

confidence: 99%

“…Eqn. (13) represents the action space of the MDP model. Action a 1 represents the service rate of a single-core processor.…”

Section: Assumptions In Our Mdp Modelmentioning

confidence: 99%

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A Novel Space Based Hosting Approach for Ultra Low Latency Web Services

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

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“…The coverage of a high throughput GEO satellites is typically divided into several spot beams (like cells in terrestrial networks) that each span a geographic area several hundreds of kilometers across [131]. Due to the high altitude of the GEO satellites and broadcast nature of the transmissions, the downlink (satellite-to-ground) traffic can be intercepted and signal tampered at any location within the spot beam with roughly equal signal quality using low-cost commercial equipment [132], [133]. This is in stark contrast to microwave links that are extremely directional, require specialized equipment, and are difficult to intercept without detection.…”

Section: Security Requirementsmentioning

confidence: 99%

Securing Public Safety Communications on Commercial and Tactical 5G Networks: A Survey and Future Research Directions

Suomalainen

Julku

Vehkaperä

et al. 2021

IEEE Open J. Commun. Soc.

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The forthcoming communication networks for public safety authorities rely on the fifth generation (5G) of mobile networking technologies. Police officers, paramedics, border guards, as well as fire and rescue personnel, will connect through commercial operator's access network and rapidly deployable tactical bubbles. This transition from closed and dedicated infrastructure to hybrid architecture will expand the threat surface and expose mission-critical applications and sensitive information to cyber and physical adversaries. We explore and survey security architecture and enablers for prioritized public safety communication in 5G networks. We identify security threat scenarios and analyze enabling vulnerabilities, threat actors, attacks vectors, as well as risk levels. Security enablers are surveyed for tactical access and core networks, commercial infrastructure, and mission-critical applications, starting from push-to-talk and group video communication and leading to situational-awareness and remote-controlled systems. Two solutions are trialed and described in more detail: remote attestation enhanced access control for constrained devices, and securing of satellite backhauls. We also discuss future research directions highlighting the need for enablers to automate security of rapid deployments, for military-grade cost-effective customizations of commercial network services to ensure robustness, and for hardening of various types of public safety equipment.

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“…However, deeper issues such as the TCP hijacking and denial of service threat or application fingerprinting through the identification of TLS certificates are more difficult to resolve. While VPNs represent an intuitive solution, standard VPN products are incompatible with the aforementioned performance enhancing proxies (PEPs) which are vital to maintaining usable speeds in VSAT environments [36], [18]. Latency in TCP traffic is treated as an indication of network congestion and thus TCP conversations in satellite environments take much longer to maximize use of available bandwidth.…”

Section: Possible Solutions and Future Workmentioning

confidence: 99%

A Tale of Sea and Sky On the Security of Maritime VSAT Communications

Pavur

Moser

Strohmeier

et al. 2020

2020 IEEE Symposium on Security and Privacy (SP)

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Very Small Aperture Terminals (VSAT) have revolutionized maritime operations. However, the security dimensions of maritime VSAT services are not well understood. Historically, high equipment costs have acted as a barrier to entry for both researchers and attackers. In this paper we demonstrate a substantial change in threat model, proving practical attacks against maritime VSAT networks with less than $400 of widely-available television equipment. This is achieved through GSExtract, a purpose-built forensic tool which enables the extraction of IP traffic from highly corrupted VSAT data streams. The implications of this threat are assessed experimentally through the analysis of more than 1.3TB of real-world maritime VSAT recordings encompassing 26 million square kilometers of coverage area. The underlying network platform employed in these systems is representative of more than 60% of the global maritime VSAT services market. We find that sensitive data belonging to some of the world's largest maritime companies is regularly leaked over VSAT ship-to-shore communications. This threat is contextualized through illustrative case studies ranging from the interception and alteration of navigational charts to theft of passport and credit card details. Beyond this, we demonstrate the ability to arbitrarily intercept and modify TCP sessions under certain network configurations, enabling man-in-the-middle and denial of service attacks against ships at sea. The paper concludes with a brief discussion of the unique requirements and challenges for encryption in VSAT environments.

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Satellite - A New Opportunity for Broadband Access

Cited by 4 publications

References 0 publications

A Novel Space Based Hosting Approach for Ultra Low Latency Web Services

A Novel Space Based Hosting Approach for Ultra Low Latency Web Services

Securing Public Safety Communications on Commercial and Tactical 5G Networks: A Survey and Future Research Directions

A Tale of Sea and Sky On the Security of Maritime VSAT Communications

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