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Site diversity is one of six techniques used to improve the reliability of satellite communications by limit atmospheric effects, particularly those caused by rain fade. A diversity scheme is typically required when using frequencies in the Ka, V, or W-band. The downlink transmissions of satellites cover very large areas, that will have different weather. The site diversity technique consists of linking two or more ground stations receiving the same signal: this way, if the signal is heavily attenuated in one area, another ground stations can compensate it. These intense rain areas, for example, supercells, often have a horizontal length of no more than a few kilometers: putting the ground stations at a sufficient distance the possibility of rain fade in the downlink signal will be reduced.
The configuration works when the attenuation is not great at the two stations simultaneously. This is usually a valid assumption. Site diversity systems have been known to minimize disruption of service by major satellite carriers.
Sitediversity is one of six techniques used to improve the reliability of satellite communications by limit atmospheric effects, particularly those caused...
Look up diversity, diverse, or diversify in Wiktionary, the free dictionary. Diversity, diversify, or diverse may refer to: Diversity (business), the...
are useful simplifications to compare different communities or sites. When diversity indices are used in ecology, the types of interest are usually species...
In ecology, alpha diversity (α-diversity) is the mean species diversity in a site at a local scale. The term was introduced by R. H. Whittaker together...
Cultural diversity is the quality of diverse or different cultures, as opposed to monoculture. It has a variety of meanings in different contexts, sometimes...
In ecology, beta diversity (β-diversity or true beta diversity) is the ratio between regional and local species diversity. The term was introduced by R...
Diversity combining is the technique applied to combine the multiple received signals of a diversity reception device into a single improved signal. Various...
example at different cellular base station sites or WLAN access points, this is called macrodiversity or sitediversity. If the antennas are at a distance in...
nucleotide diversity was first introduced by Nei and Li in 1979. This measure is defined as the average number of nucleotide differences per site between...
In the law of the United States, diversity jurisdiction is a form of subject-matter jurisdiction that gives United States federal courts the power to...
species diversity in sites at a more local scale (α) and the differentiation among those sites (β). According to this reasoning, alpha diversity and beta...
channel setup. Possible ways to overcome the effects of rain fade are sitediversity, uplink power control, variable rate encoding, and receiving antennas...
for example genetic variability, species diversity, ecosystem diversity and phylogenetic diversity. Diversity is not distributed evenly on Earth. It is...
Crop diversity or crop biodiversity is the variety and variability of crops, plants used in agriculture, including their genetic and phenotypic characteristics...
The Animal Diversity Web (ADW) is a non-profit group that hosts an online database site that collects natural history, classification, species characteristics...
Antenna diversity, also known as space diversity or spatial diversity, is any one of several wireless diversity schemes that uses two or more antennas...
Centres of Plant Diversity (CPD) was established in 1998 as a joint classification initiative between the World Wildlife Fund (WWF) and the International...
Dark diversity is the set of species that are absent from a study site but present in the surrounding region and potentially able to inhabit particular...
Linguistic diversity index (LDI) may refer to either Greenberg's (language) Diversity Index or the related Index of Linguistic Diversity (ILD) from Terralingua...
A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention, also known as "The Convention on Wetlands", an...
population size (Ng). If looking at silent-site nucleotide diversity, then larger genomes are expected to have less diversity than more compact ones. In plant and...
The World Day for Cultural Diversity for Dialogue and Development, sometimes abbreviated World Day for Cultural Diversity, is a United Nations–sanctioned...
farmers are saving seeds and building a Canadian collection". The Globe and Mail. Seeds of Diversity official site, French Global Crop Diversity Trust...
vertebrate species: mammals, amphibians, reptiles and birds. Fish species diversity is roughly divided equally between marine (oceanic) and freshwater ecosystems...
consultation with local governing bodies under Section 37 of Biological Diversity Act of 2002. These areas are considered unique and fragile ecosystems...
Diversity University was the first MOO dedicated specifically for education. Like other MUDs, it was an online realm that allowed people to interact in...
planned and chosen. In Ka band SiteDiversity configurations signal transmission is redirected from the Main Site to a Diverse Site in case of adverse weather...
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