An Alternative Statistical Characterization of TWDP Fading Model

Two-wave with diffuse power (TWDP) is one of the most promising models for the description of small-scale fading effects in 5G networks, which employs mmWave band, and in wireless sensor networks deployed in different cavity environments. However, its current statistical characterization has several...

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Autores principales:	Almir Maric, Enio Kaljic, Pamela Njemcevic
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	TWDP fading channel MGF M-ary PSK ASEP Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/f616e3c7d0a3473089ed4eaaf4b3e94b
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spelling	oai:doaj.org-article:f616e3c7d0a3473089ed4eaaf4b3e94b2021-11-25T18:57:05ZAn Alternative Statistical Characterization of TWDP Fading Model10.3390/s212275131424-8220https://doaj.org/article/f616e3c7d0a3473089ed4eaaf4b3e94b2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7513https://doaj.org/toc/1424-8220Two-wave with diffuse power (TWDP) is one of the most promising models for the description of small-scale fading effects in 5G networks, which employs mmWave band, and in wireless sensor networks deployed in different cavity environments. However, its current statistical characterization has several fundamental issues. Primarily, conventional TWDP parameterization is not in accordance with the model’s underlying physical mechanisms. In addition, available TWDP expressions for PDF, CDF, and MGF are given either in integral or approximate forms, or as mathematically untractable closed-form expressions. Consequently, the existing TWDP statistical characterization does not allow accurate evaluation of system performance in all fading conditions for most modulation and diversity techniques. In this regard, physically justified TWDP parameterization is proposed and used for further calculations. Additionally, exact infinite-series PDF and CDF are introduced. Based on these expressions, the exact MGF of the SNR is derived in a form suitable for mathematical manipulations. The applicability of the proposed MGF for derivation of the exact average symbol error probability (ASEP) is demonstrated with the example of M-ary PSK modulation. The derived M-ary PSK ASEP expression is further simplified for large SNR values in order to obtain a closed-form asymptotic ASEP, which is shown to be applicable for SNR > 20 dB. All proposed expressions are verified by Monte Carlo simulation in a variety of TWDP fading conditions.Almir MaricEnio KaljicPamela NjemcevicMDPI AGarticleTWDP fading channelMGFM-ary PSKASEPChemical technologyTP1-1185ENSensors, Vol 21, Iss 7513, p 7513 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	TWDP fading channel MGF M-ary PSK ASEP Chemical technology TP1-1185
spellingShingle	TWDP fading channel MGF M-ary PSK ASEP Chemical technology TP1-1185 Almir Maric Enio Kaljic Pamela Njemcevic An Alternative Statistical Characterization of TWDP Fading Model
description	Two-wave with diffuse power (TWDP) is one of the most promising models for the description of small-scale fading effects in 5G networks, which employs mmWave band, and in wireless sensor networks deployed in different cavity environments. However, its current statistical characterization has several fundamental issues. Primarily, conventional TWDP parameterization is not in accordance with the model’s underlying physical mechanisms. In addition, available TWDP expressions for PDF, CDF, and MGF are given either in integral or approximate forms, or as mathematically untractable closed-form expressions. Consequently, the existing TWDP statistical characterization does not allow accurate evaluation of system performance in all fading conditions for most modulation and diversity techniques. In this regard, physically justified TWDP parameterization is proposed and used for further calculations. Additionally, exact infinite-series PDF and CDF are introduced. Based on these expressions, the exact MGF of the SNR is derived in a form suitable for mathematical manipulations. The applicability of the proposed MGF for derivation of the exact average symbol error probability (ASEP) is demonstrated with the example of M-ary PSK modulation. The derived M-ary PSK ASEP expression is further simplified for large SNR values in order to obtain a closed-form asymptotic ASEP, which is shown to be applicable for SNR > 20 dB. All proposed expressions are verified by Monte Carlo simulation in a variety of TWDP fading conditions.
format	article
author	Almir Maric Enio Kaljic Pamela Njemcevic
author_facet	Almir Maric Enio Kaljic Pamela Njemcevic
author_sort	Almir Maric
title	An Alternative Statistical Characterization of TWDP Fading Model
title_short	An Alternative Statistical Characterization of TWDP Fading Model
title_full	An Alternative Statistical Characterization of TWDP Fading Model
title_fullStr	An Alternative Statistical Characterization of TWDP Fading Model
title_full_unstemmed	An Alternative Statistical Characterization of TWDP Fading Model
title_sort	alternative statistical characterization of twdp fading model
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f616e3c7d0a3473089ed4eaaf4b3e94b
work_keys_str_mv	AT almirmaric analternativestatisticalcharacterizationoftwdpfadingmodel AT eniokaljic analternativestatisticalcharacterizationoftwdpfadingmodel AT pamelanjemcevic analternativestatisticalcharacterizationoftwdpfadingmodel AT almirmaric alternativestatisticalcharacterizationoftwdpfadingmodel AT eniokaljic alternativestatisticalcharacterizationoftwdpfadingmodel AT pamelanjemcevic alternativestatisticalcharacterizationoftwdpfadingmodel
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An Alternative Statistical Characterization of TWDP Fading Model

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