Diversity antenna techniques for enhanced ultra wideband body-centric communications

Author

Abbasi, Qammer H. ; Khan, Mohammad Monirrujjman ; Alomainy, Akram ; Hao, Yang

Author_Institution

Sch. of Electron. Eng. & Comput. Sci., Queen Mary Univ. of London, London, UK

fYear

2011

fDate

3-8 July 2011

Firstpage

1323

Lastpage

1326

Abstract

This paper presents experimental investigations and analysis of ultra wideband (UWB) antenna diversity techniques for off-body radio propagation channels. Diversity gain (DG) is calculated for five different off to on-body radio channels for various locations in an indoor environment. Higher values of DG are obtained for non line-of-sight scenarios due to highly uncorrelated branch signals and low power imbalance. Results demonstrate that neither the small variations of diversity antenna on the body nor the subject location variations in an indoor environment will affect the diversity performance severely. Results obtained in this paper are compared with UWB on-body diversity and almost 50% improvement in DG is obtained for off-body cases, which shows significance of adapting diversity techniques for off-body radio channels in enhancing the performance of body-centric wireless communications.

Keywords

body area networks; diversity reception; indoor communication; ultra wideband antennas; wireless channels; diversity antenna technique; diversity gain; enhanced ultra wideband body-centric communication; indoor environment; off-body radio propagation channel; on-body radio channel; uncorrelated branch signal; Antenna measurements; Correlation; Diversity methods; Diversity reception; Indoor environments; Ultra wideband antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5996533

Filename

5996533