A Software-Defined Radio Receiver for Wireless Recording from Freely-Behaving Animalsopen access
- Authors
- Jia, Yaoyao; Lee, Byung hun; Kong, Fanpeng; Zeng, Zhaoping; Connolly, Mark; Mahmoudi, Babak; Ghovanloo, Maysam
- Issue Date
- Dec-2019
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Electrophysiology; implantable medical devices; neural interfacing; software-defined radio; wireless
- Citation
- IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.13, no.6, pp.1645 - 1654
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
- Volume
- 13
- Number
- 6
- Start Page
- 1645
- End Page
- 1654
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/146975
- DOI
- 10.1109/TBCAS.2019.2949233
- ISSN
- 1932-4545
- Abstract
- To eliminate tethering effects on the small animals' behavior during electrophysiology experiments, such as neural interfacing, a robust and wideband wireless data link is needed for communicating with the implanted sensing elements without blind spots. We present a software-defined radio (SDR) based scalable data acquisition system, which can be programmed to provide coverage over standard-sized or customized experimental arenas. The incoming RF signal with the highest power among SDRs is selected in real-time to prevent data loss in the presence of spatial and angular misalignments between the transmitter (Tx) and receiver (Rx) antennas. A 32-channel wireless neural recording system-on-a-chip (SoC), known as WINeRS-8, is embedded in a headstage and transmits digitalized raw neural signals, which are sampled at 25 kHz/ch, at 9 Mbps via on-off keying (OOK) of a 434 MHz RF carrier. Measurement results show that the dual-SDR Rx system reduces the packet loss down to 0.12, on average, by eliminating the blind spots caused by the moving Tx directionality. The system operation is verified in vivo on a freely behaving rat and compared with a commercial hardwired system.
- Files in This Item
-
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/146975)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.