Record Details
Analysis and design on low-power short-range radios for wireless body area networks
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Analysis and design on low-power short-range radios for wireless body area networks |
| Names |
Cheng, Jiao
(creator) Chiang, Patrick Y. (advisor) Natarajan, Arun S. (advisor) |
| Date Issued | 2014-05-29 (iso8601) |
| Note | Graduation date: 2014 |
| Abstract | The release of the IEEE802.15.6 standard has led to increased interest in low-power technologies for wireless body-area-networks (WBANs). The power dissipation, supply voltage, and die area are some of the most important criteria for successful WBAN implementations. Digital-intensive RX architectures can potentially result in sub-1V operation with significant reductions in power consumption and area, but require system and circuit-level innovations to achieve desired sensitivity and linearity. A PSK receiver (RX) is proposed that employs a digital-intensive architecture based on sub-sampling, Q-enhancement, and digital IF to enable lowpower (1.3mW) and low-voltage (0.6V) operation. Implemented in 65nm CMOS, this work is compatible with the IEEE 802.15.6 narrowband physical layer specification and achieves -91dBm and -96dBm sensitivity at 10⁻³ BER for π/4DQPSK and π/2-DBPSK modulation, respectively. The proposed highly-digital architecture and supply voltage scaling lead to a 3x improvement in RX energy efficiency and minimize silicon area consumption (~0.35mm² in 65nm CMOS) while achieving state-of-the-art sensitivity. While this implementation focuses on IEEE 802.15.6 narrowband demodulation, the proposed architecture and circuit techniques are generally applicable to RX targeting ultra-low power consumption for sensor networks. |
| Genre | Thesis/Dissertation |
| Topic | Receiver |
| Identifier | http://hdl.handle.net/1957/48942 |
