An adaptive q-Lognormal model towards the computation of average channel capacity in slow fading channels

Tanmay Mukherjee and Dilip Senapati
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Tanmay Mukherjee: Ravenshaw University
Dilip Senapati: Ravenshaw University

Telecommunication Systems: Modelling, Analysis, Design and Management, 2022, vol. 79, issue 3, No 2, 355 pages

Abstract: Abstract The characterization of multipath fading and shadowing in wireless communication systems is essential towards the evaluation of various performance measures. It is well known that the statistical characterization of shadowing phenomena is captured by distributions viz., log-normal distribution, gamma distribution and other mixture distributions. However, it is observed that the log-normal distribution fails to characterize the outliers in the fading signal. The extreme fluctuations in the fading signal needs to be characterized efficiently for error free computation of the various performance metrics. In this context, this paper portrays an adaptive generalized Tsallis’ non-extensive q-Lognormal model towards the characterization of various fading channels. This model operates well with the synthesized fading signals and captures the wide range of tail fluctuations to adapt different fading scenarios. The significance and applicability of the proposed novel q-lognormal model in capturing the slow fading channels is validated using different statistical tests viz., chi-square test and symmetric JS measure. Furthermore, essential performance measures viz., the average channel capacity, closed form expression of cumulative distribution function (CDF) in terms of Gauss-Hypergeometric function $${}_2{F_1}\left[ {\mathrm{{a, b, c; z}}} \right] $$ 2 F 1 a , b , c ; z , moment generating function, higher order moments corresponding to q-Lognormal channel capacity and coefficient of variation is evaluated corresponding to the proposed q-lognormal model performing extensive Monte-Carlo simulation techniques up to $$O(10^7)$$ O ( 10 7 ) .

Keywords: Tsallis’ entropy; Shadowing; q-Lognormal; JS measure; Adaptability; Monte-Carlo Simulation; Gauss-Hypergeometric function (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s11235-021-00843-5

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