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Characteristics of the polarised off-body channel in indoor environments

Abstract

This paper addresses the depolarisation effect in off-body body area networks channels, based on measurements performed at 2.45 GHz in an indoor environment. Seven different scenarios, involving both static and dynamic users, were considered, taking a statistical perspective. The analysis of the cross-polarisation discrimination is performed, as well as the analysis of path loss in co- and cross-polarised channels. Results show a strong dependence of the cross-polarisation discrimination and of channel characteristics on the polarisation and propagation condition, i.e. line-of-sight (LoS), non-LoS or quasi-LoS. Distance, varied between 1 and 6 m in the considered scenarios, is observed to have very little impact on the cross-polarisation discrimination. In the considered dynamic scenario, the channel is characterised by lognormal-distributed shadowing and Nakagami-distributed multipath fading. Parameters of the Nakagami distribution have essentially different values in the co- and cross-polarised channels, showing a trend towards Rice in the former and Rayleigh in the latter. Based on results, a model is proposed for a dynamic off-body channel.

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Keywords

Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
EURASIP Journal on Wireless Communications and Networking no. 2017, edition 1, pages 1 - 15,
ISSN: 1687-1472
Language:
English
Publication year:
2017
Bibliographic description:
Turbić K., Ambroziak S., Correia L.: Characteristics of the polarised off-body channel in indoor environments// EURASIP Journal on Wireless Communications and Networking. -Vol. 2017, iss. 1 (2017), s.1-15
DOI:
Digital Object Identifier (open in new tab) 10.1186/s13638-017-0956-6
Verified by:
Gdańsk University of Technology

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