On-Body Channel Measurement Using Wireless Sensors

Author

Munoz, Max O. ; Foster, Robert ; Hao, Yang

Author_Institution

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

Volume

60

Issue

7

fYear

2012

fDate

7/1/2012 12:00:00 AM

Firstpage

3397

Lastpage

3406

Abstract

The on-body channel was characterised at various points on the human torso in an anechoic chamber using a pair of wireless sensor modules. The performance of wireless IEEE 802.15.4 sensor nodes operating in the 2.45 GHz ISM frequency band (2.40-2.4835 GHz) is presented over each of the 16 different channels. It is shown that the response at individual carrier frequencies is dependent not only on the initial antenna response, as determined by the on-body measurement in isolation, but also on the overall system performance. Measurement results are also compared with those from the conventional technique using a Vector Network Analyzer.

Keywords

anechoic chambers (electromagnetic); electromagnetic wave propagation; network analysers; wearable antennas; IEEE 802.15.4 sensor nodes; anechoic chamber; frequency 2.40 GHz to 2.4835 GHz; human torso; individual carrier frequencies; initial antenna response; on-body channel measurement; vector network analyzer; wireless sensor modules; wireless sensors; Antenna measurements; Coaxial cables; Receiving antennas; Sensors; Wireless communication; Wireless sensor networks; Body-centric communication; channel performance; electromagnetic wave propagation; medical applications; on-body wireless sensors; wearable antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2196933

Filename

6209396