NDLI: Analysis and design of data transmission protocol for 1024-channel retinal prosthesis

Content Provider	IEEE Xplore Digital Library
Author	Kuanfu Chen Ming-Hsien Tsai Fu-Lung Hsueh Wentai Liu
Copyright Year	2011
Description	Author affiliation: Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu 300, Taiwan (Ming-Hsien Tsai; Fu-Lung Hsueh) \|\| University of California at Santa Cruz, Santa Cruz, CA 95064 USA (Kuanfu Chen; Wentai Liu)
Abstract	Epiretinal prostheses deliver electrical pulses through a great number of stimulation electrodes to generate visual perception. Since a large amount of stimulation parameters have to be sent into the eye wirelessly, the transmission efficiency and data loss are critical design factors. While the error rate of wireless transmission might not be perfect due to the limited power dissipation allowed in the eyeball, data loss can be reduced by altering the size of data packets. In this paper, the correlation between packet length and data loss are analyzed, and we find that more than 10 times of reduction in data loss can be achieved by shortening the data packets. The costs and benefits of using error-correcting codes (ECC) are also evaluated. A data packet protocol for 1024-channel retinal prosthesis as well as the corresponding receiver circuitry are then designed based on the results of the analyses. The circuit occupies 330μm × 262μm using 0.18μm CMOS technology. With the flexibility provided by the protocol and receiver circuitry, data packet configuration (size and ECC on/off) can be adaptively adjusted to optimize for real-time wireless channel error conditions.
Starting Page	4010
Ending Page	4013
File Size	407006
Page Count	4
File Format	PDF
ISBN	9781424441211
ISSN	1557170X
e-ISBN	9781457715891
e-ISBN	9781424441228
DOI	10.1109/IEMBS.2011.6090996
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Error correction codes Wireless communication Retina Protocols Bit error rate Prosthetics Receivers
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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