VSAT Networks—an overview

Maggenti, Mark; Ha, T.T.; Pratt, T.

doi:10.1002/sat.4600050305

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…Generally, a VSAT network is a star configuration that includes many VSATs and a single HUB. The HUB can communicate with the VSATs via the outbound links (HUB‐to‐VSAT) and a number of remote VSATs can communicate with the HUB via the inbound links (VSAT‐to‐HUB) . The most common VSAT configuration is the time division multiplex/time division multiple access (TDM/TDMA) star network, where there is a high bit rate outbound carrier (TDM) from the hub to the remote earth stations accompanied by one or more low or medium bit rate TDMA inbound carriers .…”

Section: Introductionmentioning

confidence: 99%

A simple key agreement scheme based on chaotic maps for VSAT satellite communications

Lee

2013

Satell Commun Network

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Security is an essential requirement in any data communication system because a cyber criminal might try to break into it at any point by any means possible. A key agreement procedure is a necessary technique to ensure the security of data communication by way of encryption and mutual authentication. This article proposes a simple key agreement scheme on the basis of chaotic maps for VSAT satellite communications. The new scheme keeps the advantages of all chaotic maps-based public key cryptosystems, providing a secure function of session key agreement. Based on the intractability of chaotic map discrete logarithm problem and chaotic map Diffie-Hellman problem, the security of this new scheme has been proven to be robust enough against all the wellknown cryptographical attacks with perfect forward secrecy provided. In addition, compared with similar schemes that serve the same purposes, the proposed scheme demands a lower computation cost. With all the previous features put together, the proposed scheme is extremely suitable for the use in very small aperture terminal satellite communication environments.

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Section: Introductionmentioning

confidence: 99%

A simple key agreement scheme based on chaotic maps for VSAT satellite communications

Lee

2013

Satell Commun Network

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“…In general, a satellite communication is suitable for broadcasting service and long-hual transmission based on telecommunications. Due to the rapid development of satellite communication technology, a low-cost very small aperture terminal (VSAT) network can be used for data, voice, and video communications [1][2][3]. If we do not apply security technology for the satellite communication systems, it can be vulnerable to unauthorized access to the transmitted data.…”

Section: Introductionmentioning

confidence: 99%

“…To provide practicality, the proposed scheme is composed of three sub-phases, which are initialization, VSAT registration, and common key agreement. Compared with previous schemes, the newly proposed scheme has the following more practical merits: (1) it provides secure session key agreement function by adopting elliptic curve cryptosystem, (2) it can reduce the total execution time and memory requirement due to the elliptic curve cryptography, and (3) it not only is secure against well-known cryptographical attacks but also provides perfect forward secrecy. As a result, compared with related schemes, the proposed scheme has strong security and enhanced computational efficiency.…”

Section: Introductionmentioning

confidence: 99%

A New Efficient Key Agreement Scheme for VSAT Satellite Communications Based on Elliptic Curve Cryptosystem

Hong

Yoon

Park

et al. 2011

ITC

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Spread SCPC/FDMA, spread TDMA/FDMA and SSMA/FDMA transmission through A non‐linear satellite channel with an earth‐station off‐axis emission constraint

Albuquerque

Sampaio‐Neto

1992

Int. J. Satell. Commun.

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This paper analyses and compares possible access schemes to be used in satellite networks with a large number of small earth‐stations. Basically, frequency division (FDMA), time division (TDMA), and spread spectrum multiple access (SSMA) are considered. For TDMA, one single carrier originated in one particular earth‐station is transmitted in each sub‐band and therefore a single‐channel‐per‐carrier system results (SCPC/FDMA). For TDMA and SSMA, it is assumed that groups of earth‐stations using either of these access schemes share the full available band in FDMA. The corresponding systems are thus TDMA/FDMA and SSMA/FDMA. Moreover, for SCPC/FDMA and TDMA/FDMA individual carriers may be spread to the extent that the available bandwidth is always fully occupied. Spectral efficiencies for these three access modes (Spread SCPC/FDMA, Spread TDMA/FDMA and SSMA/FDMA) are computed and compared for transmission through a non‐linear satellite channel and optimum operating points for the non‐linear amplifier are also determined. Comparisons are also performed for the situation in which transmitting earth‐stations are bounded to obey an off‐axis emission constraint.

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VSAT Networks—an overview

Cited by 7 publications

References 7 publications

A simple key agreement scheme based on chaotic maps for VSAT satellite communications

A simple key agreement scheme based on chaotic maps for VSAT satellite communications

A New Efficient Key Agreement Scheme for VSAT Satellite Communications Based on Elliptic Curve Cryptosystem

Spread SCPC/FDMA, spread TDMA/FDMA and SSMA/FDMA transmission through A non‐linear satellite channel with an earth‐station off‐axis emission constraint

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