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Diversity scheme information


Terrestrial microwave radio system with two antenna arrays configured for space-diversity

In telecommunications, a diversity scheme refers to a method for improving the reliability of a message signal by using two or more communication channels with different characteristics. Diversity is mainly used in radio communication and is a common technique for combatting fading and co-channel interference and avoiding error bursts. It is based on the fact that individual channels experience fades and interference at different, random times, i.e., they are at least partly independent. Multiple versions of the same signal may be transmitted and/or received and combined in the receiver. Alternatively, a redundant forward error correction code may be added and different parts of the message transmitted over different channels. Diversity techniques may exploit the multipath propagation, resulting in a diversity gain, often measured in decibels.

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Diversity scheme

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In telecommunications, a diversity scheme refers to a method for improving the reliability of a message signal by using two or more communication channels...

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Diversity

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single improved signal Diversity gain, the increase in signal-to-interference ratio due to a diversity scheme Diversity scheme, a method for improving...

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Antenna diversity

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Antenna diversity, also known as space diversity or spatial diversity, is any one of several wireless diversity schemes that uses two or more antennas...

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Diversity gain

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Diversity gain is the increase in signal-to-interference ratio due to some diversity scheme, or how much the transmission power can be reduced when a...

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Cyclic delay diversity

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Delay Diversity (CDD) is a diversity scheme used in OFDM-based telecommunication systems, transforming spatial diversity into frequency diversity and thus...

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Transmit diversity

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interference-limited environments will differ. Antenna diversity Diversity gain Diversity scheme Dynamic Single-Frequency Networks (DSFN) Macrodiversity...

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Macrodiversity

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field of wireless communication, macrodiversity is a kind of space diversity scheme using several receiver or transmitter antennas for transferring the...

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Fading

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varying channel model. The effect can be counteracted by applying some diversity scheme, for example OFDM (with subcarrier interleaving and forward error correction)...

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MIMO

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the conventional MIMO systems. Macrodiversity MIMO A form of space diversity scheme which uses multiple transmit or receive base stations for communicating...

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Digvijaya Singh

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Panchayati Raj as a means of delegating power to villagers and a supplier diversity scheme which guaranteed that thirty per cent of government supplies would...

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Transgender rights in the United Kingdom

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November 2021, the BBC announced it was pulling out of Stonewall's diversity scheme, citing a need to remain impartial. In 2023, the BBC sent a nine page...

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Maya Forstater

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Rights Commission (EHRC) to end its membership of the Stonewall Diversity Champions scheme, and on the Committee on Standards in Public Life to oversee a...

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Site diversity

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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...

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Time diversity

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multiple times, or a redundant error correcting code is added. By means of bit-interleaving, the error bursts may be spread in time. Diversity scheme v t e...

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Fresnel zone

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03{\sqrt {D\mathrm {[mi]} \over f\mathrm {[GHz]} }}} Beam diameter Diversity scheme Ellipse#Elliptical reflectors and acoustics Fresnel diffraction Fresnel...

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Downtime

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errors with error correcting codes, retransmission, checksums, or diversity scheme. One of the biggest causes of downtime is misconfiguration, where a...

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Cooperative diversity

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signals received with the help of various combining schemes. It provides power gain and diversity gain simultaneously. We consider a wireless relay system...

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Rain fade

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{f_{i}^{2}}{1+10^{-4}f_{i}^{2}}}} and f is the frequency in GHz. Fresnel zone Diversity scheme Drop size distribution (DSD) IndoStar-1, first direct broadcasting...

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Channel access method

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used commercially in the wireless industry as the foundation of 2G. Diversity scheme Dynamic bandwidth allocation Radio resource management for inter-base...

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Shaun Goater

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Academy coaching staff as part of the Premier League’s Coach Inclusion & Diversity Scheme (CIDS), a programme set up with the aim of increasing the number of...

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Rician fading

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modified Bessel function of the first kind. Fading Multipath propagation Diversity schemes Rayleigh fading Rice distribution Stochastics Statistics Stephen O...

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Radio propagation

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Computation of radiowave attenuation in the atmosphere Critical frequency Diversity scheme Earth bulge Earth-ionosphere waveguide Effective Earth radius Electromagnetic...

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List of schemes of the government of India

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and social security schemes for India's citizens funded either by the central government, state government or concurrently. Schemes which are fully funded...

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Convention on Biological Diversity

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The Convention on Biological Diversity (CBD), known informally as the Biodiversity Convention, is a multilateral treaty. The Convention has three main...

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Vavilov center

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developed its distinctive properties. They are also considered centers of diversity. Centers of origin were first identified in 1924 by Nikolai Vavilov. Locating...

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