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MGF‐based analysis of κ ‐ μ /gamma composite fading model for indoor off body communication
Author(s) -
Shankar Hari,
Kansal Ankush
Publication year - 2019
Publication title -
transactions on emerging telecommunications technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 47
ISSN - 2161-3915
DOI - 10.1002/ett.3566
Subject(s) - fading , channel capacity , channel (broadcasting) , expression (computer science) , mathematics , bit error rate , moment generating function , statistics , algorithm , binary number , modulation (music) , telecommunications , topology (electrical circuits) , electronic engineering , computer science , probability density function , physics , engineering , combinatorics , arithmetic , acoustics , programming language
This paper presents the moment generating function (MGF)–based analysis of κ‐μ/gamma composite fading model, which is suitable for the indoor off‐body communication channel. In this paper, first of all, we derive an analytical expression for MGF of instantaneous signal‐to‐noise ratio. By using the derived MGF, the expressions of average symbol error rate (ASER)/average bit error rate (ABER) for binary and M‐ary modulation scheme are derived. Using the MGF approach, we also derive the expression of channel capacity for optimum rate adaption and channel inversion with fixed rate policy. The derived expressions for ABER/ASER and channel capacity are presented in the infinite series form. We further present the numerical results of error rate and channel capacity for different values of κ, μ, α, and β parameters. The result of ABER and channel capacity shows good agreement with the previously reported results as special cases that verify the derived expressions.