Closed-form Distribution and Analysis of a Combined Nakagami-lognormal Shadowing and Unshadowing Fading Channel

Authors

DOI:

https://doi.org/10.26636/jtit.2016.4.765

Keywords:

multipath shadowing fading, outage probability, propagation, wireless communication system

Abstract

The realistic wireless channels face combined (time shared) Nakagami-lognormal shadowing and unshadowing fading because of time varying nature of radio channel and mobile user. These channels can be modeled as time-shared sum of multipath-shadowing and unshadowing Rician distributions. These fading create severe problems in long distance wireless systems where multipath fading is superim-posed on shadowing fading (called multipath-shadowing fading). The multipath effect can be modeled using Rayleigh, Rician, Nakagami-m or Weibull distribution and shadowing effect is modeled using lognormal distribution. In this paper, authors present a new closed-form probability distribution function of a Nakagami-lognormal fading channel. Using this result, the closed-form expression of combined Nakagami-lognormal shadowing and unshadowing fading is presented. The obtained closed-form result facilitates to derive the important performance metrics of a communication system such as amount of fading, outage probability, and average channel capacity in closed-form expressions.

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Submitted

2023-06-24

Published

2016-12-30

Issue

No. 4 (2016)

Section

ARTICLES FROM THIS ISSUE

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How to Cite

[1]
R. Singh and M. Rawat, “Closed-form Distribution and Analysis of a Combined Nakagami-lognormal Shadowing and Unshadowing Fading Channel”, JTIT, vol. 66, no. 4, pp. 81–87, Dec. 2016, doi: 10.26636/jtit.2016.4.765.