Squire Tech

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So far Squire Tech has created 61 blog entries.

Efficient dynamic authentication for mobile satellite communication systems without verification table

2016-02-10T09:49:56+00:00

SUMMARY The mobile satellite system is an important wireless communication system widely used nowadays. The issue of protecting the transmission security in low-earth-orbit satellite networks thus becomes more and more critical. It is known that several authentication schemes for satellite communication systems have been proposed to deal with the issue. However, previous protocols either employ [...]

Efficient dynamic authentication for mobile satellite communication systems without verification table 2016-02-10T09:49:56+00:00

Early detection and rejection probability-based congestion control scheme for deep space networks

2016-02-10T09:50:16+00:00

SummaryDeep Space Networks (DSNs) are a class of DTNs. In such networks, owing to limited radio range and node mobility, end-to-end paths between source and destination nodes are not available. Messages are relayed by store-and-forward strategy and may be buffered for long periods before being forwarded to the next hop. Therefore, the buffer of message [...]

Early detection and rejection probability-based congestion control scheme for deep space networks 2016-02-10T09:50:16+00:00

Satellite interference evaluation: joint effect of modeling earth station locations and earth station antenna sidelobe gains as random variables

2016-02-10T09:50:49+00:00

SUMMARY When several satellite communication systems share the same frequency band, each system operates under the aggregate interference generated by the others. In this interfering environment, interference calculation procedures in which worst-case situations and simplifying assumptions are considered are commonly used. Given that the geostationary satellite orbit and the frequency spectrum are limited resources, it [...]

Satellite interference evaluation: joint effect of modeling earth station locations and earth station antenna sidelobe gains as random variables 2016-02-10T09:50:49+00:00

QoS provisioning by power control for video communication via satellite links

2016-02-10T09:51:00+00:00

SUMMARY Video transmissions over satellite links are sensitive to signal fades because of rain, especially in the tropics. We performed a video-streaming experiment over a satellite link for 24 days distributed over 1 year to investigate the effects of rain fade. Based on the measurements, models for the relationships between rainfall rate, power level, packet loss, and [...]

QoS provisioning by power control for video communication via satellite links 2016-02-10T09:51:00+00:00

Time Warner Cable Is Having a Giant Internet Outage

2016-02-10T09:51:13+00:00

Time Warner Cable is experiencing major outages at this time. People all over the country are reporting disruptions in service for the cable internet.. Time Warner Cable is experiencing major outages at this time. People all over the country are reporting disruptions in service for the cable internet. […]

Time Warner Cable Is Having a Giant Internet Outage 2016-02-10T09:51:13+00:00

Welcome to our Satellite Blog

2016-02-10T09:51:20+00:00

In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon. The world’s first artificial satellite, the Sputnik 1, was launched by the Soviet Union in 1957. Since then, thousands of [...]

Welcome to our Satellite Blog 2016-02-10T09:51:20+00:00

Rain granularity effects on bandwidth demand for faded DVB-RCS systems

2016-02-10T09:51:30+00:00

Broadband satellite communication networks, operating at Ka band and above, play a vital role in today's worldwide telecommunication infrastructure. The problem, however, is that rain can be the most dominant impairment factor for radio propagation above 10 GHz. This paper studies bandwidth and time slot allocation problem for rain faded DVB-RCS satellite networks. We investigate how [...]

Rain granularity effects on bandwidth demand for faded DVB-RCS systems 2016-02-10T09:51:30+00:00

Intelsat Napa Teleport in Epicenter of 6.0 Earthquake [Industry update]

2016-02-10T09:51:40+00:00

The earthquake lies within a 70-km-wide (44 miles) set of major faults of the San Andreas Fault system that forms the boundary between the Pacific and North American tectonic plates. The persistent northwestward movement of the Pacific plate relative to North America primarily causes right-lateral slip across the major faults, but also causes deformation between [...]

Intelsat Napa Teleport in Epicenter of 6.0 Earthquake [Industry update] 2016-02-10T09:51:40+00:00

Solano County, CA, Mobile Command Post

2016-02-10T09:51:48+00:00

Featuring on-board power systems, climate control, full radio communications package and CAT5 computer network, this Farber Specailty Vehicles multi-agency Mobile CommandPost Vehicle was custom built for the Solano County, California. […]

Solano County, CA, Mobile Command Post 2016-02-10T09:51:48+00:00