Paper Info
Title
Design and optimization of edge computing distributed neural processor for biomedical rehabilitation with sensor fusion
Abstract
Modern biomedical devices use sensor fusion techniques to improve the classification accuracy of motion intent of users for rehabilitation application. The design of motion classifier observes significant challenges due to the large number of channels and stringent communication latency requirement. This paper proposes an edge-computing distributed neural processor to effectively reduce the data traffic and physical wiring congestion. A special local and global networking architecture is introduced to significantly reduce traffic among multi-chips in edge computing. To optimize the design space of the features selected, a systematic design methodology is proposed. A novel mixed-signal feature extraction approach with assistance of neural network distortion recovery is also provided to significantly reduce the silicon area. A 12-channel 55nm CMOS test chip was implemented to demonstrate the proposed systematic design methodology. The measurement shows the test chip consumes only 20uW power, more than 10,000X less power than the current clinically used microprocessor and can perform edge-computing networking operation within 5ms time.
Year
DOI
Venue
2018
10.1145/3240765.3240794
ICCAD-IEEE ACM International Conference on Computer-Aided Design
Keywords
Field
DocType
Neural network,Low power edge processing,Mixed signal feature extraction,Inter-chip communication,Biomedical devices
Edge computing,Computer science,Microprocessor,Communication channel,Sensor fusion,Feature extraction,Chip,Real-time computing,Design methods,Artificial neural network
Conference
ISSN
ISBN
Citations 
1933-7760
978-1-4503-5950-4
0
PageRank 
References 
Authors
0.34
7
5
Name
Order
Citations
PageRank
Kofi Otseidu101.35
Tianyu Jia2116.74
Joshua Bryne300.34
Levi J. Hargrove4131.85
Jie Gu543.86