Experimental investigation of channel capacity and signal correlation in multi-element antennas for body-centric wireless networks

Author

Qaraqe, Marwa ; Abbasi, Qammer H. ; Alomainy, Akram ; Serpedin, Erchin

Author_Institution

Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA

fYear

2014

fDate

11-12 June 2014

Firstpage

1

Lastpage

6

Abstract

In this paper, the benefits of using MIMO in body-centric wireless communication channels are evaluated by quantifying the correlation and capacity increase of various on-body channels for both the narrowband and the ultrawideband (UWB) frequency range. The correlation between the sub-channels are evaluated and the achievable channel capacity of a 2×2 MIMO on-body channel is compared to the SIMO and SISO case. It is found that narrowband MIMO outperforms narrowband SIMO and SISO after a certain signal-to-noise (SNR) level, with an average improvement of 1.5 bps/Hz versus SIMO and 2.5 bps/Hz improvement versus SISO for the Wrist-Waist channel. For the UWB scenario, the average improvement of MIMO versus SIMO and SISO is 4 bps/Hz and 5.5 bps/Hz, respectively, for the Wrist-Waist channel.

Keywords

MIMO communication; body area networks; body sensor networks; channel capacity; health care; MIMO; SIMO; SISO; Wrist-Waist channel; body-centric wireless networks; channel capacity; multielement antennas; signal correlation; ultrawideband frequency range; Antenna measurements; Channel capacity; Correlation; MIMO; Narrowband; Receiving antennas; Signal to noise ratio; Body-Area-Network; Capacity Evaluation; MIMO;

fLanguage

English

Publisher

ieee

Conference_Titel

Medical Measurements and Applications (MeMeA), 2014 IEEE International Symposium on

Conference_Location

Lisboa

Print_ISBN

978-1-4799-2920-7

Type

conf

DOI

10.1109/MeMeA.2014.6860093

Filename

6860093