Abstract | ||
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This paper presents a low-power Gaussian frequency shift keying (GFSK) demodulation technique for wireless body area network (WBAN) applications. The demodulator is composed of a digital pulse generator (DPG), a low-pass filter (LPF), a band-pass filter (BPF), and a hysteresis comparator. The robustness under frequency deviations is realized by a DPG, which outputs an optimized pulse width insensitive to variations of process, voltage, and temperature (PVT). The demodulator is designed with 0.18 mu m CMOS technology, and the input testing GFSK signal is 200 kHz, with a data rate of 100 kb/s and a modulation index of 1.0. Simulation results show that the minimum input signal-to-noise ratio (SNR) is 18 dB for 0.1% bit error rate (BER), which falls in the same level with state-of-the-art. Nevertheless, the proposed demodulator can tolerate -15%similar to+ 10% frequency deviation, and consumes only 0.52 mA under 1.8 V supply. |
Year | DOI | Venue |
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2013 | 10.1109/BioCAS.2013.6679715 | 2013 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS) |
Keywords | Field | DocType |
low pass filters,frequency shift keying,band pass filters,cmos integrated circuits,noise | Demodulation,Modulation index,Band-pass filter,Frequency-shift keying,Computer science,Frequency deviation,Pulse-width modulation,Electronic engineering,Low-pass filter,Electrical engineering,Bit error rate | Conference |
Volume | Issue | ISSN |
null | null | 2163-4025 |
Citations | PageRank | References |
3 | 0.48 | 8 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Pengpeng Chen | 1 | 123 | 17.75 |
Bo Zhao | 2 | 106 | 9.25 |
Rong Luo | 3 | 233 | 24.75 |
Yong Lian | 4 | 3 | 0.82 |
Huazhong Yang | 5 | 2239 | 214.90 |