نتایج جستجو برای: nakagami distribution

تعداد نتایج: 609373  

2002
Zhefeng Song Keli Zhang Yong Liang Guan

Nakagami fading model is widely adopted for analyzing wireless communication systems and diversity combining techniques, hence the ability to generate Nakagami fading signals with arbitrary parameters is important for system design and simulations. In the literature, there are only algorithms for generating correlated Nakagami branches with the same fading parameter. In this paper, we adopt a n...

2010
Md. Abdul Alim Md. Mahbub Hossain

Future Communication systems will be driven by the concept that how every one can be connected from any where at any time. An essential part of this concept is Wireless Body Area Network (WBAN) approach by which services are constantly available and the best use of this WBAN is health monitoring. Indeed, if medical monitoring can be performed wirelessly, the patient is no longer constrained in ...

2009
A. Annamalai

A unified expression for computing the probability of outage in cellular mobile radio systems is derived. The method handles non-integer Nakagami fading indexes, unequal Rice factors, dissimilar shadowing spreads, unequal transmit powers as well as all the common fading distributions (Rayleigh, Rice, Nakagami-m, Nakagami-q, lognormal-Rice, Suzuki and lognormal-Nakagami-m). The exact outage prob...

2009
ČASLAV STEFANOVIĆ DRAGANA KRSTIĆ ANA PEŠIĆ MIHAJLO STEFANOVIĆ Aleksandra Medvedeva DEJAN PETKOVIĆ Caslav Stefanovic Dragana Krstic Ana Pesic Mihajlo Stefanovic Dejan Petkovic

Probability density function (PDF), moments of signal and amount of fading (AF) at the output of macrodiversity system in closed form are obtained. Moreover, level crossing rate (LCR) of signal at output of macro diversity system is analytically derived and used to study average fade duration (AFD) of the proposed system. Dual maximal-ratio combining (MRC) is implemented at the micro level (sin...

2014
Weijun Cheng

In this paper, we investigated the end-to-end performance of a dual-hop variable gain relaying system over mixed fading environment. In such environment, the wireless links of relaying system undergo different fading conditions, where one link is subject to the Nakagami-m fading, the other link is subject to the composite Nakagami-lognormal fading which is approximated by using mixture gamma fa...

Journal: :IET Communications 2008
Maged Elkashlan Cyril Leung Robert Schober

Abstract: A procedure for determining the probability distribution of the rth order statistic, Gr:L, r 1⁄4 1, 2, . . . , L, among a set of L correlated Nakagami diversity branch gains G1, G2, . . ., GL has been described in David and Nagaraja (2003) and Elkashlan et al. (2008). The results are used to evaluate the bit error rate (BER) of general order selection (GOS), a diversity method in whic...

Journal: :Trans. Emerging Telecommunications Technologies 2017
Imran Shafique Ansari Ferkan Yilmaz Mohamed-Slim Alouini Oguz Kucur

The probability density function (PDF) and cumulative distribution function of the sum of L independent but not necessarily identically distributed Gamma variates, applicable to the output statistics of maximal ratio combining (MRC) receiver operating over Nakagami-m fading channels or in other words to the statistical analysis of the scenario where the sum of squared Nakagami-m distributions a...

2009
Lennert Jacobs George C. Alexandropoulos Marc Moeneclaey Takis Mathiopoulos

In this contribution, we provide an exact BER analysis for M-QAM transmission over arbitrarily correlated Nakagamim fading channels with maximal-ratio combining (MRC) and imperfect channel estimation at the receiver. Assuming an arbitrary joint fading distribution and a generic pilot-based channel estimation method, we derive an exact BER expression that involves an expectation over (at most) 4...

2012
Edis MEKIĆ Nikola SEKULOVIĆ Miloš BANDJUR Mihajlo STEFANOVIĆ Petar SPALEVIĆ

In this paper, we present novel closed-form expressions for the probability density function (PDF) and cumulative distribution function (CDF) of ratio of random variable and product of two random variables for the cases where random variables are Rayleigh, Weibull, Nakagami-m and α-μ distributed. An application of obtained results in performance analysis of multi-hop wireless communication syst...

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