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Wireless Personal Communications
Erschienen in: Wireless Personal Communications 3/2019

14.09.2019

Closed-Form Analysis of Various Diversity Techniques for Multiband OFDM UWB System Over Log-Normal Fading Channels

verfasst von: Sai Krishna Kondoju, Venkata Mani Vakamulla

Erschienen in: Wireless Personal Communications | Ausgabe 3/2019

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Abstract

In this paper, we investigate the effect of multipath fading on the combined signal-to-noise ratio (SNR) in conjunction with multiband orthogonal frequency division multiplexing ultra-wideband system with different diversity schemes such as maximal ratio combining, equal gain combining and selection combining. In particular, we derived the probability density function of the combiner output SNR followed by performance measures, average combined SNR, outage probability and average bit error rate, in the case of L-fold log-normal fading channels. The derived mathematical expressions are illustrated by applying the method to some selected numerical examples of interest showing the impact of fading variance as-well-as a number of diversity paths, which is combined, on the performance metrics of combiner output for above diversity techniques. The results show that the number of diversity paths significantly improve the effect of multipath fading on derived performance measures.
Vorheriger Artikel Energy Efficiency Optimization for Wireless Body Area Networks Under 802.15.6 Standard
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Metadaten
Titel
Closed-Form Analysis of Various Diversity Techniques for Multiband OFDM UWB System Over Log-Normal Fading Channels
verfasst von
Sai Krishna Kondoju
Venkata Mani Vakamulla
Publikationsdatum
14.09.2019
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2019
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-019-06652-z

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