A 0.24-nJ/b Wireless Body-Area-Network Transceiver With Scalable Double-FSK Modulation

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An energy-efficient wireless body-area-network (WBAN) transceiver is implemented in 0.18-mu m CMOS technology with 1-V supply voltage. For the low energy consumption, the body channel communication (BCC) PHY is utilized with the theoretical results of Maxwell's equation analysis behind the BCC. Based on the channel analysis, the resonance matching (RM) and contact impedance sensing (CIS) techniques are proposed to enhance the quality of the body channel. A double-FSK modulation scheme is adopted with high scalability to fulfill the IEEE 802.15.6 Task Group specifications. In addition, a low-power double-FSK transceiver is implemented by five circuit techniques: 1) a reconfigurable LNA with CIS; 2) a current-reuse wideband demodulator; 3) a divider-based local oscillator (LO) generation with duty-cycle correction in the receiver; 4) a reconfigurable driver with RM; and 5) a divider-based digital double-FSK modulator in the transmitter. As a result, fully WBAN compatible receiver and transmitter consume 2.4 and 2 mW, respectively, at a data rate of 10 Mb/s, corresponding to energy consumption of 0.24 nJ per received bit and 0.2 nJ per transmitted bit.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2012-01
Language
English
Article Type
Article
Keywords

INTRABODY COMMUNICATION; BAND

Citation

IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.47, no.1, pp.310 - 322

ISSN
0018-9200
DOI
10.1109/JSSC.2011.2170632
URI
http://hdl.handle.net/10203/98600
Appears in Collection
EE-Journal Papers(저널논문)
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