Data transmission in implantable biomedicai microsystems by pulse harmonic modulation: A new structure

Abstract

For data transmission from the Implantable Biomedicai Microsystems (IBM) to outside the body by Pulse Harmonic Modulation (PHM), two narrow pulses with appropriate timing are used so as to increase the data rate and decrease the InterSymbol Interference (ISI). In this paper, a new structure based on clock width modification and its edge detection has been designed to generate pulses. To control the timing interval between the two pulses, one quantity is used, which is the advantage of this structure over the previous ones. The structure has been simulated in 0.18 μm technology by ADS and HSPICE software, data transmission rate reaches 20 Mbps.