A 4-Mbps 41-pJ/bit On-off Keying Transceiver for Body-channel Communication with Enhanced Auto Loss Compensation Technique
2019 IEEE Asian Solid-State Circuits Conference (A-SSCC)(2019)
摘要
This paper presents a body-channel communication (BCC) transceiver for wireless body sensor network applications. The transceiver employs on-off keying (OOK) modulation and operates in the quasi-static band. It achieves high energy efficiency and stability through two innovative methods: 1) an auto-loss compensation (ALC) technique attenuates the time-variant path loss in the wearable scenario; 2) a capacitive interface in the receiver strengthens the path loss compensation. The transceiver is designed and fabricated in 180-nm CMOS process, it achieves 4-Mbps data rate with a 41-pJ/bit energy efficiency over 1.5-m distance. It also exhibits resiliency to the ground variations and achieves
$4.1\times$
reduction in path loss.
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关键词
wireless-body-area network,body-channel communication,auto-loss compensation,transceiver,energy efficiency
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