Title :
A low energy bio sensor node processor for continuous healthcare monitoring system
Author :
Kim, Hyejung ; Kim, Yongsang ; Yoo, Hoi-Jun
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., KAIST, Daejeon
Abstract :
A low energy sensor node processor is proposed for continuous healthcare monitoring application. The bio signal processing block is integrated into the processor to support the compression and the encryption. A quadratic level bio signal compression algorithm is proposed to reduce the transmission power consumption and the memory capacity. And the AES-128 data encryption datapath is integrated for user privacy and authentication. The CR is 8.4:1, the PRD is 0.897% and the compression rate is 6.4 Mbps. The encryption rate is 1.6 Mbps and the normalized performance is 0.4b/cycle/k-gates which is the highest value compared to the related works. The proposed processor consumes 0.56 nJ/bit at 1V supply voltage with 1MHz operating frequency in 0.25-mum CMOS process.
Keywords :
biomedical communication; biosensors; cryptography; health care; patient monitoring; CMOS process; continuous healthcare monitoring system; frequency 1 MHz; low energy biosensor node processor; quadratic level biosignal compression algorithm; size 0.25 micron; voltage 1 V; Authentication; Biomedical signal processing; Biosensors; Compression algorithms; Cryptography; Data privacy; Energy consumption; Medical services; Monitoring; Signal processing algorithms;
Conference_Titel :
Solid-State Circuits Conference, 2008. A-SSCC '08. IEEE Asian
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-2604-1
Electronic_ISBN :
978-1-4244-2605-8
DOI :
10.1109/ASSCC.2008.4708791
