Ricean k
Webb30 juni 2024 · Radio frequency is a valuable resource for wireless communication systems. The high-frequency band from 6 GHz up to 100 GHz, where continuous and broad spectra exist, is promising to meet the high spectrum requirement of fifth generation (5G) mobile communication systems by 2024. Webb26 okt. 2024 · The Ricean K-factor is the ratio of the power of the deterministic multipath component (MPC) and the power of all other stochastic MPCs. The classical moment-based method has been successfully...
Ricean k
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Webb15 aug. 2024 · A Ricean fading channel with K=∞ is a Gaussian channel with a strong LOS path. Ricean channel with K=0 represents a Rayleigh channel with no LOS path. The … Webb1 juni 2014 · This paper presents the analysis of Ricean K-factor for wideband high-speed railway channels at 2.35 GHz, based on radio channel measurements under viaduct and …
WebbAbstract In wireless communications, the relative strength of the direct and scattered components of the received signal, as expressed by the Ricean K factor, provides an indication of link quality. Accordingly, efficient and accurate methods for estimating K are of considerable interest. WebbThe Rician K-factor is defined as the ratio of signal power in dominant component over the (local-mean) scattered power. In the expression for the received signal, the power in the …
In probability theory, the Rice distribution or Rician distribution (or, less commonly, Ricean distribution) is the probability distribution of the magnitude of a circularly-symmetric bivariate normal random variable, possibly with non-zero mean (noncentral). It was named after Stephen O. Rice (1907–1986). Visa mer The probability density function is $${\displaystyle f(x\mid \nu ,\sigma )={\frac {x}{\sigma ^{2}}}\exp \left({\frac {-(x^{2}+\nu ^{2})}{2\sigma ^{2}}}\right)I_{0}\left({\frac {x\nu }{\sigma ^{2}}}\right),}$$ Visa mer Moments The first few raw moments are: and, in general, the raw moments are given by Here Lq(x) denotes a Visa mer There are three different methods for estimating the parameters of the Rice distribution, (1) method of moments, (2) method of maximum likelihood, and (3) method of least squares. In the first two methods the interest is in estimating the parameters of the … Visa mer • Hoyt distribution • Rayleigh distribution Visa mer • $${\displaystyle R\sim \mathrm {Rice} \left( \nu ,\sigma \right)}$$ if $${\displaystyle R={\sqrt {X^{2}+Y^{2}}}}$$ where • Another case where Visa mer For large values of the argument, the Laguerre polynomial becomes It is seen that as ν … Visa mer • The Euclidean norm of a bivariate circularly-symmetric normally distributed random vector. • Rician fading (for multipath interference Visa mer Webb9 juli 2003 · The Ricean K factor: estimation and performance analysis Abstract: In wireless communications, the relative strength of the direct and scattered components …
WebbA Ricean amplitude with parameter K can be created by combining the quadrature components x 1, 2, from the dataset as r = q ( x 1 + A) 2 2 (1) where A 2 = 2 K, and x i is a random variable with variance 2. The mean-squared value of the Ricean distribution is given by A 2 +2 =2 (K +1) (2) The normalized power envelope is therefore r 2 P = 1 2(K ...
Webb24 mars 2009 · Ricean [Math Processing Error]-Factors in Narrow-Band Fixed Wireless Channels: Theory, Experiments, and Statistical Models Abstract: Fixed wireless channels … how old is the8WebbTraditional methods for estimating the Ricean K-factor from measured power versus time are relatively cumbersome and time consuming. We describe a simple and rapid … meredith matone chophttp://www.diva-portal.org/smash/record.jsf?pid=diva2:836748 how old is the abba membersWebb5. Conclusion. In this paper, the 23 GHz V2I channels are characterized by measurement-validated RT simulations for different antenna heights in various propagation environments. The PL, shadow fading, Ricean K -factor, DS, AS, and blockage loss of the channels are characterized for each zone in different cases. how old is thasunda brown duckettWebb16 maj 2014 · It is found that regardless of the Ricean K-factor, in the case of perfect CSI, the approximations converge to the same constant value as the exact results, as the number of base station antennas grows large, while the transmit power of each user can be scaled down proportionally to 1/M. This paper investigates the uplink achievable rates of … how old is the acropolisWebb1 juli 2003 · The Ricean K-factor estimation for M-ary Phase Shift Keying modulated signals with additive noise is studied and results show that the approach outperforms … how old is the acer aspire 5Webb22 dec. 2008 · The Ricean K-factor is a practical channel quality measure in many wireless communication applications as it exhibits a fast estimation convergence compared wit … meredith maxey md