Title :
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
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;
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
DOI :
10.1109/EuCAP.2012.6206685
