Spatial Diversity and Diversity Gain
Spatial Diversity Gain of MIMO Single Frequency Network in Passive Coherent Location
... a spatial diversity gain proportional to the product of the number of transmit and receive ...this gain was already shown in re- cent research for the case of active transmitters, where the ...
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Analysis of WiMAX Physical Layer using Spatial Diversity
... the spatial diversity that is obtained by spatially separated antennas in a dense multipath scattering ...a diversity gain to combat signal fading or to obtain a capacity gain ...
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Bit error Rate Analysis of Coherent Detection Equal Gain Combining Spatial Diversity Receivers for Satellite to Ground Downlink Optical Transmissions
... equal gain combining (EGC) receiver system are given for binary phase-shift keying (BPSK) modulation schemes under Gamma-Gamma channel model atmospheric ...EGC diversity, but the improved rate of ...
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Analysis of Outage Probability and Diversity Gain for MIMO Free-Space Optical Links.
... fading, spatial diversity is used ...and diversity gain of MIMO system with different misalignment fading conditions, over a slow turbulence-fading ...fading, diversity gain is ...
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On multipath spatial diversity in wireless multiuser communications
... Our primary aim in this thesis is to probe further into the nature of multipath environments in order to gain a greater understanding of their characteristics and diversity potential. We highlight the ...
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Codebook based precoding for generalized spatial modulation with diversity
... since they provide significant performance gain over unprecoded systems with low complexity and without increasing the PAPR. Our goal is to employ efficient codebooks with widely diverse codewords such that, given ...
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Throughput Analysis of Large Networks:Spatial Diversity, Beamforming Gain, and Transmission Modes
... R´ esum´ e Tandis qu’une infrastructure cˆ abl´ ee est ` a la base de la plupart des r´ eseaux sans fil actuels, l’´ evolution dynamique et rapide des nouveaux r´ eseaux sans fil appelle ` a de nouvelles infrastructures ...
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Exploration of Spatial Diversity in Multi-Antenna Wireless Communication Systems
... the spatial domain, multi-antenna techniques enhance the wireless communication systems through array gain, spatial diversity, and spatial ...
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SPATIAL DIVERSITY TECHNIQUES IN MIMO WITH FREE SPACE OPTICAL COMMUNICATION
... of diversity combining in which the signal from each channel are added together and the gain of each channel is made proportional to the RMS value of signal and inversely proportional to the mean square ...
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A Compact Band-Notched Ultra-Wideband Spatial Diversity Antenna
... UWB spatial diversity antenna with band-notched function is proposed in this ...peak gain, spatial diversity performance and low envelope ...
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Long-term rain attenuation probability and site diversity gain prediction formulas
... (Site Diversity) takes advantage of the spatial characteristics of the rainfall medium by using two earth stations to exploit the fact that the probability of attenuation due to rain occurring ...
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Multiuser Diversity Gain in Cognitive Networks
... We assess the optimal multiuser diversity gain in the cognitive networks by quantifying how the sum-rate throughput of the network scales with the number of secondary users. For this purpose we look at the ...
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Analysis of DNA diversity by spatial autocorrelation.
... These autocorrelation indices for DNA analysis, or AIDAs, can be applied to RFLP and sequence data; the resulting set of autocorrelation coefficients, or cowelogra[r] ...
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Governing urban planning diversity: the use of internal diversity in metropolitan area spatial planning
... area, Diversity, Governance Abstract In this paper spatial, functional, social and cultural aspects of the problem of governing urban diversity are ...of diversity as an element driving urban ...
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Determinants of species diversity across spatial scales
... species diversity across spatial scales Karger, Dirk Nikolaus Abstract: Eine der größten Fragen der heutigen Wissenschaft lautet: Was bestimmt Artenvielfalt? Die reine Anzahl an Arten, die auf der Erde ...
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Spatial patterns of bat diversity overlap with woodpecker abundance
... Woodpecker diversity is usually higher in natural forests rich in dead wood and old trees than in managed ones, thus this group of birds is regarded as an indicator of forest ...and diversity in ...
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Performance Analysis of MIMO OFDM by Spatial Diversity with STBC4
... The growing demand of multimedia services and the growth of Internet related contents lead to increasing interest to high speed communications. OFDM is a type of multichannel modulation that divides a given channel into ...
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Improving spatial predictions of taxonomic, functional and phylogenetic diversity
... models, similarity effect, Sørensen dissimilarity index, stacked species distribution models... Introduction 66.[r] ...
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Towards understanding the spatial pattern of amphibian diversity in Madagascar
... Over 240 species of amphibians have been formally described in Madagascar so far, about one third of them during the last decade (Köhler et al., 2005). However, from molecular, bioacoustic and morphological data, our ...
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Rain Attenuation at Tropical Region- Site Diversity Gain Models' Sensitivity
... Site diversity is one of the effective techniques to avoid rain attenuation especially in tropical ...site diversity scheme is measured using site diversity ...the gain was initiated by ...
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