An advanced modulation technique for telemetry system used for smart capsules

Author

Fawaz, N. ; Durrenberger, M. ; Bau, D. ; Jansen, D.

fYear

2009

fDate

15-17 July 2009

Firstpage

644

Lastpage

647

Abstract

This paper presents an enhancement on QPSK modulation technique for near field communication (NFC). The enhanced modulation is based on continuous-phase QPSK with Gaussian filtering during switch from one phase to the other. Signal processing is done digitally with minimum external discrete components for air interface. The telemetry system can be used to assist a smart capsule (slave) that can be swallowed to establish data communication with external device (master). The system is designed, simulated, and emulated on FPGA showing 20 dB attenuation on side-lobes of the spectrum.

Keywords

biomedical communication; biomedical electronics; filters; medical signal processing; modulation; patient diagnosis; phase shift keying; telemetry; FPGA; Gaussian filtering; QPSK modulation technique enhancement; advanced modulation technique; continuous phase QPSK; data communication; digital signal processing; loss 20 dB; near field communication; smart capsules; telemetry system; Attenuation; Communication switching; Continuous phase modulation; Data communication; Field programmable gate arrays; Filtering; Master-slave; Quadrature phase shift keying; Switches; Telemetry; DSP; FPGA; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Computational Tools for Engineering Applications, 2009. ACTEA '09. International Conference on

Conference_Location

Zouk Mosbeh

Print_ISBN

978-1-4244-3833-4

Electronic_ISBN

978-1-4244-3834-1

Type

conf

DOI

10.1109/ACTEA.2009.5227930

Filename

5227930