LCR of the Ratio of the Product of Two Squared Nakagami-m Random Processes and Its Application to Wireless Communication Systems

Stefanović, Dušan; Stefanović, Časlav; Djosic, Danijel; Milić, Dejan; Rančić, Dejan; Stefanović, Mihajlo

doi:10.1109/infoteh.2019.8717765

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…The mean square of the interference is s 1 , while fading severity is determined by parameter m 2 > 1/2. In an interference limited NLOS environment, ϑ 1 can be equal to the ratio of the two N random variables (Milosevic et al, 2018b;Talha and Patzold, 2011;Pavlović et al, 2013;Stefanovic et al, 2019;Milenkovic et al, 2017):…”

Section: Outage Statistics Over the Nlos Signal Path In The Presence ...mentioning

confidence: 99%

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Analytical performance analysis of the M2M wireless link with an antenna selection system over interference limited dissimilar composite fading environments

Ðošić,

Milić,

Kontrec

et al. 2022

International Journal of Applied Mathematics and Computer Scien

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This paper considers direct mobile-to-mobile (M2M) communications with a dual antenna selection (AS) system at a destination mobile node (DMN) in interference limited, dissimilar composite fading environments. In particular, we model dissimilar interference limited signals at the inputs of the dual branch AS system as (i) the ratio of two Nakagami-m (N) random variables (RVs) at the first branch and (ii) the ratio of two Rice RVs at the second branch, in order to account for non line-of-sight (NLOS) and line-of-sight (LOS) communications, respectively. Moreover, we assume variable powers of the desired as well as interference signals at the output of the DMN in order to account for the impact of shadowing. For the proposed model, we derive probability density functions, cumulative distribution functions, outage probabilities and average level crossing rates. The derived statistical results are evaluated for all the statistical measures considered and are graphically presented in order to provide insight into the impact of composite fading severities and LOS factors for the desired signal, as well as for the interference, on the system performances.

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Section: Outage Statistics Over the Nlos Signal Path In The Presence ...mentioning

confidence: 99%

“…In an interference limited LOS environment, the ratio of ζ 2 and η 2 denoted by variable ϑ 2 can be expressed as (Milosevic et al, 2018b;Talha and Patzold, 2011;Pavlović et al, 2013;Stefanovic et al, 2019;Wang et al, 2008)…”

Section: Outage Statistics Over the Nlos Signal Path In The Presence ...mentioning

confidence: 99%

Analytical performance analysis of the M2M wireless link with an antenna selection system over interference limited dissimilar composite fading environments

Ðošić,

Milić,

Kontrec

et al. 2022

International Journal of Applied Mathematics and Computer Scien

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“…The LCR of gamma-gamma random variable (RV) is addressed in [20], while the LCR over Malaga TIFC is addressed in [21]. The LCR expression of the ratio of two gamma-gamma RVs is derived in [22]. Moreover, the SOS over log-normal TIFC of multi-hop FSO system including pointing errors are addressed in [23].…”

Section: Introductionmentioning

confidence: 99%

LCR and AFD of the Products of Nakagami-m and Nakagami-m Squared Random Variables: Application to Wireless Communications Through Relays

Stefanović¹,

Milovanović

Stefanović

2021

Preprint

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The paper considers level crossing rate (LCR) and average fade du- ration (AFD) of the product of independent and identically distributed (i.i.d) Nakagami-m (NM) and double NM squared (also known as gamma-gamma) random variables (RVs). The derived statistical results are than related to the radio-frequency (RF) - free space optical (FSO), dual-hop (DH), amplify- and forward (AF) relaying system over non turbulent-induced-fading channels (nTIFCs) and turbulent-induced-fading channels (TIFCs). The obtained re- sults of DH-AF, RF-FSO system over TIFCs and nTIFCs are numerically evaluated and graphically presented for all system model parameters.

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Outage statistics of double gamma–gamma random process and its application to cooperative optical wireless communication relay systems

Dejanovic¹,

Dubljanin²,

Kontrec³

et al. 2021

Int J Numerical Modelling

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This article investigates outage statistics of double gamma-gamma random variable (RV) modeled as the product of two independent and identically distributed gamma-gamma RVs. The outage closed-form statistics in terms of the first-order statistical measures (probability density function and cumulative distribution function) and the second-order statistical measures (level crossing rate and average fade duration) by Laplace approximation integral (LAI) and exponential LAI are derived. The statistical results are directly related to the performance evaluation of dual-hop as well as cooperative dual-hop optical wireless communications over moderate to strong turbulence-induced fading channels.

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LCR of the Ratio of the Product of Two Squared Nakagami-m Random Processes and Its Application to Wireless Communication Systems

Cited by 4 publications

References 18 publications

Analytical performance analysis of the M2M wireless link with an antenna selection system over interference limited dissimilar composite fading environments

Analytical performance analysis of the M2M wireless link with an antenna selection system over interference limited dissimilar composite fading environments

LCR and AFD of the Products of Nakagami-m and Nakagami-m Squared Random Variables: Application to Wireless Communications Through Relays

Outage statistics of double gamma–gamma random process and its application to cooperative optical wireless communication relay systems

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