Design of a radio system for capsule endoscopy through a pathloss analysis

Author

Takizawa, Kenichi ; Hagiwara, Hiroaki ; Hamaguchi, Kiyoshi

Author_Institution

Nat. Inst. of Inf. & Commun. Technol. (NICT), Yokosuka, Japan

fYear

2012

fDate

26-30 March 2012

Firstpage

553

Lastpage

556

Abstract

This paper presents a design of radio systems for capsule endoscopy operating in the 400 MHz band. The design is conducted through estimating a link budget based on system requirements and limitations for the radio systems. In order to calculate the pathloss accounted in the link budget, a method to estimate the pathloss is introduced that brings a patient-specific pathloss model. This method allows calculating the pathloss estimates between the capsule device in the small intestine and on-body antennas. The results show that the use of an antenna diversity technique is crucial to increase the channel signal-to-noise ratio (SNR) in capsule endoscopy. Also, the location onto which the on-body antennas are attached is important to bring the diversity gain.

Keywords

antennas; biological organs; biomedical telemetry; endoscopes; radio links; radiowave propagation; wireless sensor networks; antenna diversity technique; capsule device; capsule endoscopy; channel signal-noise ratio; frequency 400 MHz; link budget; on body antennas; pathloss analysis; pathloss estimates; patient specific pathloss model; radio system design; small intestine; Antennas; Endoscopes; IEEE 802.15 Standards; Image coding; Mathematical model; Signal to noise ratio; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6206685

Filename

6206685