نتایج جستجو برای: nakagami distribution
تعداد نتایج: 609373 فیلتر نتایج به سال:
This paper represents the MIMO channel capacity over Rician fading, Rayleigh fading and Nakagami fading channel. Here Rician fading model employs a zero-mean stochastic sinusoid as the line-of-sight component. This paper offers analyses and simulations to the behavior of MIMO system and its expected capacity for various channel distribution under flat fading. Several types of distributions (Ric...
We develop and evaluate analytic and bootstrap bias-corrected maximum likelihood estimators for the shape parameter in the Nakagami distribution. This distribution is widely used in a variety of disciplines, and the corresponding estimator of its scale parameter is trivially unbiased. We find that both “corrective” and “preventive” analytic approaches to eliminating the bias, to O(n), are equal...
A detailed analysis of the multiple access interference (MAI) for synchronous downlink CDMA systems is carried out for BPSK signals with random signature sequences in Nakagami-m fading environment with known channel phase. This analysis presents a unified approach as Nakagami-m fading is a general fading distribution that includes the Rayleigh, the one-sided Gaussian, the Nakagami-q, and the Ri...
Intensity variations in image texture can provide powerful quantitative information about physical properties of biological tissue. However, tissue patterns can vary according to the utilized imaging system and are intrinsically correlated to the scale of analysis. In the case of ultrasound, the Nakagami distribution is a general model of the ultrasonic backscattering envelope under various sca...
In this article, a four-parameter Nakagami Weibull distributions (NW) is proposed. We study few statistical properties such as quantile function, moments, moment generating entropy, and order statistics have been derived. The maximum likelihood estimate used to the parameter of NW distribution. fit proposed distribution real-life data set examine its potential flexibility. Our findings showed t...
The major Objective of simulating the radio propagation channels is to substantiate the design and performance of wireless communication systems. In the early stage of analysis and performance of wireless transceiver design fading channel simulators plays a vital role. The software simulators are painless to design, where as various hardware simulators have been proved that they offer distinct ...
_______________________________________________________________________ Signal Fading can drastically affect the performance of terrestrial communication systems. Fading caused by multipath propagation can degrade the bit-error-rate (BER) performance of a digital communication system resulting data loss or dropped calls in a cellular system. So it is essential to understand the nature of multip...
Meta-surfaces intend to improve the performance of future wireless networks significantly by controlling propagation and shaping radio waves according generalized Snell's law. A recent application meta-surfaces are reconfigurable intelligent surfaces that mainly proposed for reflection steering impinging signal. In this article, we introduce randomly (RRSs) aiming diffuse incoming wave characte...
This chapter treats performances of Maximal-Ratio Combiner (MRC) in presence of two general fading distributions, the κ-μ distribution and the η-μ distribution (Yacoub, 2007.). Namely, performances of Maximal-Ratio Combiner in fading channels have been of interest for a long time, which can be seen by a numerous publications concerning this topic. Most of these papers are concerned by Rayleigh,...
PERFORMANCE ANALYSIS OF DPSK/DS-CDMA SIGNALS OVER NAKAGAMI RADIO FADING CHANNELS by Ali A. Jamous Chairman: Dr. Ibrahim Ghareeb Direct sequence (DS) based code division multiple access (CDMA) with differential phase shift keying (DPSK) modulation is an active area of research and has taken on a significant role in recent cellular and personal communication systems. Two basic problems are of maj...
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