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BER and channel capacity analysis of wireless system over \({\kappa -\mu /}\)inverse gamma and \({\eta -\mu /}\)inverse gamma composite fading model

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Abstract

The \({\kappa -\mu /}\)Inverse Gamma (KMIG) and \({\eta -\mu /}\)Inverse Gamma (EMIG) are recently introduced composite fading distributions for the precise design of the wireless systems, where multipath fading and shadowing occur concomitantly. Further, these composite fading models are competent to be employed in the performance investigation of the digital communication system as their mathematical formulations are quite tractable. Average symbol error probability (SEP) and channel capacity analysis are important parameters to investigate the performance of a digital communication system. The applicability of these fading models is illustrated by analysing the performance matrices of the digital communication channels in the present work. Various performance matrices such as the average SEP, the channel capacity under different adaptive schemes namely, optimum rate adaptation (ORA), channel inversion with fixed rate (CIFR) and truncated CIFR are derived. The asymptotic analysis of KMIG and EMIG composite fading models over average SEP performance matrices with coding gain and diversity gain is also carried out in this work. The simplified high and low signal-to-noise-ratio solutions to channel capacity are also provided as a by-product. In addition, approximate analysis to ORA and CIFR capacity are provided under realistic environmental conditions. The accuracy of the derived numerical formulations is validated with the use of Monte–Carlo simulation. The results of present work will be advantageous in the modelling and designing of popular wireless services such as vehicle-to-vehicle communication, wearable communication and wireless power transfer related technologies.

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Authors and Affiliations

  1. Tula’s Institute, Dehradun, India

    Diwaker Pant

  2. M. M. M. University of Technology, Gorakhpur, India

    Puspraj Singh Chauhan & Sanjay Kumar Soni

  3. G.B.Pant Institute of Engineering and Technology, Pauri, India

    Sanjeev Naithani

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  1. Diwaker Pant
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  2. Puspraj Singh Chauhan
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  3. Sanjay Kumar Soni
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  4. Sanjeev Naithani
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Correspondence to Sanjay Kumar Soni.

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Pant, D., Chauhan, P.S., Soni, S.K. et al. BER and channel capacity analysis of wireless system over \({\kappa -\mu /}\)inverse gamma and \({\eta -\mu /}\)inverse gamma composite fading model. Wireless Netw 27, 1251–1267 (2021). https://doi.org/10.1007/s11276-020-02507-9

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