Abstract
We present a low-power wireless solution for energy autonomous wireless body area networks (WBANs) by using a super-regenerative receiver with suitable channel codes. To find corresponding ideal signalling schemes based on envelope detection, the capacity of the noncoherent AWGN channel with multi-level inputs is first studied. These investigations show that asymmetric on-off keying is efficient when the power budget is limited. Therefore, pulse-position modulation (PPM) and Reed Solomon coded PPM are proposed as practical signalling and schemes. Simulation and emulation results both illustrate that the transmit power of wireless bio-sensors can be reduced dramatically by using the proposed schemes, relative to uncoded systems. Moreover, the effect of applying analog-to-digital convertors with different resolutions for the super-regenerative receiver is studied to find the minimum number of the required quantization bits.
Original language | English |
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Title of host publication | Proceedings of the 2011 IEEE Biomedical Circuits and Systems Conference (BioCAS), 10-12 November 2011, San Diego, California |
Place of Publication | Piscataway |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 161-164 |
ISBN (Print) | 978-1-4577-1469-6 |
DOIs | |
Publication status | Published - 2011 |
Event | 2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011 - La Jolla, United States Duration: 10 Nov 2011 → 12 Nov 2011 https://ieee-cas.org/conference/2011-ieee-biomedical-circuits-and-systems-conference-biocas |
Conference
Conference | 2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011 |
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Abbreviated title | BioCAS 2011 |
Country/Territory | United States |
City | La Jolla |
Period | 10/11/11 → 12/11/11 |
Other | Biomedical Circuits and Systems Conference (BioCAS), 2011 IEEE |
Internet address |