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Mixed-signal demodulator for IEEE 802.15.6 IR-UWB WBAN energy detection-based receiver

Mixed-signal demodulator for IEEE 802.15.6 IR-UWB WBAN energy detection-based receiver

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A mixed-signal baseband demodulator for IEEE 802.15.6 impulse-radio ultra-wideband (IR-UWB) wireless body area network (WBAN) energy detection-based receiver is presented. It considers M-ary pulse position modulation (PPM) signalling format conforming to the IEEE 802.15.6 WBAN standard. The demodulator utilises ‘integrate-and-digitise’ approach employing simple mixed-signal circuits. The design is implemented in 0.18 μm CMOS technology operating at 1.8 V supply. The demodulator consists of a mixed-signal windowed integrator, a single-ended successive approximation register analogue-to-digital converter followed by a digital back-end. Further, its performance evaluation is carried out for 2-ary and 16-ary PPM signalling in different WBAN channels.

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