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With the wide usage of long-term health care, research on wireless sensing system tends to focus on low power consumption. In this paper, a low-power and high-quality adaptive fuzzy resolution control system is created for wireless body sensor networks. The sampling clocks of analog-to-digital converters (ADCs) can be adaptively selected by an adaptive fuzzy resolution controller. The resolution of...
In this paper, a five-level reconfigurable control system is proposed for wireless body sensor network (WBSN). In this system, the bi-direction communication channel is separated into an instruction path and a data path. The instruction path consists of two different kinds of instructions. The first one is command instruction which provides parameters setting for the sensor nodes. The other one is...
An efficient VLSI design of lossless electrocardiogram (ECG) encoder is proposed for wireless body sensor networks. To save wireless transmission power, a novel lossless encoding algorithm has been created for ECG signal compression. The proposed algorithm consists of an adaptive predictor based on the fuzzy decision control, and an entropy encoder including a two-stage Huffman coding. The VLSI architecture...
A four-levels hierarchical wireless body sensor network (WBSN) system is designed for biometrics and healthcare applications. It also separates pathways for communication and control. In order to improve performance, a communication cycle is constructed for synchronizing the WBSN system with the pipeline. A low-power adaptive process is a necessity for long-time healthcare monitoring. It includes...
There is an increasing need to develop more flexible and intelligent low power wireless body sensor network (WBSN) system for healthcare monitoring applications. Technical advancements in micro-sensors, micro electro- mechanical system (MEMS) devices, low power electronics, and radio frequency (RF) circuits and systems have enabled both design and development of such highly integrated system. In this...
A four levels hierarchy wireless body sensor network (WBSN) is proposed for monitoring healthcare applications. It is separated into communication and control systems. In the communication system, the carrier frequency used in the human body is 402-405 MHz as medical implant communication systems (MICS) band by FCC and the coexistent wireless communication system (2.4 / 60 GHz) was used to transmit...
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