Design and implementation of a high data rate MICS digital baseband transmitter

Author

Im, Junha ; Lee, Sangmin ; Kim, Jaeseok

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

fYear

2011

fDate

4-7 Oct. 2011

Firstpage

13

Lastpage

18

Abstract

An efficient design and VLSI implementation of a high data rate Medical Implant Communications Service (MICS) digital baseband transmitter for implantable medical devices is proposed in this paper. An orthogonal frequency division multiplexing (OFDM)-based multicarrier scheme is used to overcome the data rate limitation caused by the narrow bandwidth of 300 kHz. The proposed transmitter can support enhanced data rate by utilizing multiple channels simultaneously. Furthermore, to satisfy the MICS regulation, various schemes are applied including optimized subcarrier allocation for inverse fast Fourier transform (IFFT) and additional sidelobe suppression technique. The proposed transmitter with optimized hardware architecture is verified by VLSI implementation and it can support a maximum data rate of 4.86 Mbps, which is more than ten times faster than the previous systems.

Keywords

OFDM modulation; VLSI; biomedical communication; biomedical equipment; fast Fourier transforms; inverse transforms; radio transmitters; wireless channels; IFFT; MICS regulation; OFDM-based multicarrier scheme; VLSI implementation; bandwidth 300 kHz; bit rate 4.86 Mbit/s; high data rate MICS digital baseband transmitter; inverse fast Fourier transform; medical devices; medical implant communications service; optimized hardware architecture; optimized subcarrier allocation; orthogonal frequency division multiplexing-based multicarrier scheme; sidelobe suppression technique; Bandwidth; Baseband; Data communication; Microwave integrated circuits; OFDM; Sensors; Transmitters; VLSI; digital baseband; medical implant communications service (MICS); multicarrier; orthogonal frequency division multiplexing (OFDM);

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Systems (SiPS), 2011 IEEE Workshop on

Conference_Location

Beirut

ISSN

2162-3562

Print_ISBN

978-1-4577-1920-2

Type

conf

DOI

10.1109/SiPS.2011.6088942

Filename

6088942