A 1.12 pJ/b Inductive Transceiver With a Fault-Tolerant Network Switch for Multi-Layer Wearable Body Area Network Applications
Yoo, J.
Lee, S.
Yoo, H.-J.
This paper appears in: Solid-State Circuits, IEEE Journal of
Publication Date: Nov. 2009
Volume: 44,
Issue: 11
On page(s): 2999-3010
ISSN: 0018-9200
Digital Object Identifier: 10.1109/JSSC.2009.2028952
Current Version Published: 2009-11-03
Abstract A near-field coupling transceiver integrated with a fault-tolerant network switch is implemented for inter-layer and intra-layer Wearable 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-$mu$m 1P5M CMOS process technology, occupying 2.0 mm$^{2}$ and 0.8 mm$^{2}$ area, respectively.
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