Multi-Access Networking with Wireless Ultrasound-Powered Implants.
Multi-Access Networking with Wireless Ultrasound-Powered Implants.
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具有无线超声驱动植入物的多路访问网络。
DOI：
10.1109/biocas.2019.8919144
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Arbabian,Amin
中科院分区：
文献类型：
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作者：
Chang,TingChia;Wang,Max;Arbabian,Amin
具有微型无线植入设备的多接入网络可以实现和推进闭环医疗应用，以提供精确的诊断和治疗。将超声波 (US) 用于无线植入系统是一种有利的方法，因为 US 可以以高空间分辨率进行波束形成，从而有效地为网络中的多个植入物供电和寻址。为了展示这些功能，我们使用具有双向通信链路的无线供电毫米尺寸植入物；上行链路数据通信测量是使用组织体模中的时分、空间和频分复用方案来执行的。 32 通道线性发射器阵列和外部接收器用作基站，与两个植入物联网，植入物深度为 6.5 厘米，间距小于 1 厘米。所有三种网络方案都展示了成功的无线供电和约 100 kbps 的上行链路数据通信，测量的误码率低于 10-4，验证了美国无线植入系统的多路访问网络的可行性。
Multi-access networking with miniaturized wireless implantable devices can enable and advance closed-loop medical applications to deliver precise diagnosis and treatment. Using ultrasound (US) for wireless implant systems is an advantageous approach as US can beamform with high spatial resolution to efficiently power and address multiple implants in the network. To demonstrate these capabilities, we use wirelessly powered mm-sized implants with bidirectional communication links; uplink data communication measurements are performed using time, spatial, and frequency-division multiplexing schemes in tissue phantom. A 32-channel linear transmitter array and an external receiver are used as a base station to network with two implants that are placed 6.5 cm deep and spaced less than 1 cm apart. Successful wireless powering and uplink data communication around 100 kbps with a measured bit error rate below 10-4are demonstrated for all three networking schemes, validating the multi-access networking feasibility of US wireless implant systems.