Journal
IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume 44, Issue 11, Pages 2999-3010Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSSC.2009.2028952
Keywords
Capacitor bank; digital compensation; fault tolerance; fault-tolerant network; inductive coupling; resonance compensation; wearable network
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A near-field coupling transceiver integrated with a fault-tolerant network switch is implemented for inter-layer and intra-layerWearable Body Area Network. The inductive coupling transceiver employs a Resonance Compensator (RC) with a digitally controlled on-chip capacitor bank and a variable hysteresis Schmitt Trigger to compensate dynamic and static variances of woven inductor, and it enables 10 Mbps wireless transaction with the reception energy of 1.12 pJ/b at 2.5 V supply. The network switch introduces new fault-tolerant protocol to eliminate the routing table and reduces power consumption by 70% compared with the conventional switch using torus topology. The transceiver with the switch and the RC are implemented in 0.25-m 1P5M CMOS process technology, occupying 2.0 mm and 0.8 mm area, respectively.
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