A New Optical UWB Modulation Technique for 250Mbps Wireless Link in Implantable Biotelemetry Systems
A New Optical UWB Modulation Technique for 250Mbps Wireless Link in Implantable Biotelemetry Systems
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DOI：
10.1016/j.proeng.2016.11.488
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. D. Marcellis;E. Palange;M. Faccio;Luca Nubile;Guido Di Patrizio Stanchieri;S. Petrucci;T. Constandinou
中科院分区：
文献类型：
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作者：
A. D. Marcellis;E. Palange;M. Faccio;Luca Nubile;Guido Di Patrizio Stanchieri;S. Petrucci;T. Constandinou
我们提出了一种基于新脉冲编码技术的光UWB调制，用于无线植入式生物遥测。该解决方案采用亚纳秒激光脉冲，允许高数据速率和降低功耗相比，国家的最先进的。因此，所提出的方法是适合于即将到来的生物医学系统，如自主植入式神经设备。所开发的架构包括一个发射器和一个接收器采用脉冲半导体激光器和一个小的敏感面积光电二极管，分别，包括编码和解码数字系统，偏置和驱动模拟电路的激光脉冲产生和光电二极管信号调理。通过采用分立元件原型PCB和FPGA实现获得的实验结果验证了这种新技术，显示出在数据速率高达250 Mbps且估计功耗低于5 mW的情况下实现BER小于10- 9的能力。例如，这些结果使得能够以16位分辨率传输以16 kHz采样的1000通道神经记录系统。
We propose an optical UWB modulation based on a new pulsed coding technique for wireless implantable biotelemetry. The solution employs sub-nanosecond laser pulses allowing for both high data rates and reduction of the power consumption compared to the state-of-the-art. Thus, the proposed approach is suitable for upcoming biomedical systems like autonomous implantable neural devices. The developed architecture consists of a transmitter and a receiver employing a pulsed semiconductor laser and a small sensitive area photodiode, respectively, and includes coding and decoding digital systems, biasing and driving analogue circuits for laser pulse generation and photodiode signal conditioning. Experimental findings, obtained by employing discrete components prototype PCBs and FPGA implementations, validate the novel technique showing the capabilities to achieve a BER less than 10-9with data rates up to 250Mbps and an estimated power consumption lower than 5mW. These results enable, for example, the transmission of a 1000-channel neural recording system sampled at 16 kHz with 16-bit resolution.