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A phase noise model is proposed for silicon oscillating accelerometers (SOAs), which can be used to estimate the frequency noise from the accelerometer. This model treats the SOA as a time-varying system and employs a unified approach to decompose the physical system into phase and amplitude modulation paths to predict the phase noise in SOA. Furthermore, the model also reveals the relationship between...
Due to varying on-body channel conditions, transmission between a sensor node and a body-worn coordinator is vulnerable to poor channel conditions caused by body shadowing. One possible solution to this is the use of relays where direct transmission to the hub is not possible. The two-hop relay mechanism proposed in IEEE 802.15.6 standard can be divided into channel assessment, relaying node election,...
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