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Circuits and Systems Group
"... “A fast and accurate SystemC / SystemC-AMS model for super-regenerative radio ” page ii ..."
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“A fast and accurate SystemC / SystemC-AMS model for super-regenerative radio ” page ii
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, 2014
"... This Open Access Dissertation is brought to you for free and open access by the Dissertations and Theses at ScholarWorks@UMass Amherst. It has ..."
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This Open Access Dissertation is brought to you for free and open access by the Dissertations and Theses at ScholarWorks@UMass Amherst. It has
A Precise and High Speed Charge-Pump PLL Model Based on SystemC/SystemC-AMS
"... Abstract—The Phase Locked Loop (PLL) has become an important part of electrical systems. When designing a PLL, an efficient and reliable simulation platform for system evaluation is needed. However, the closed loop simulation of a PLL is time consuming. To address this problem, in this paper, a new ..."
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Abstract—The Phase Locked Loop (PLL) has become an important part of electrical systems. When designing a PLL, an efficient and reliable simulation platform for system evaluation is needed. However, the closed loop simulation of a PLL is time consuming. To address this problem, in this paper, a new PLL model containing both digital and analog parts based on SystemC/SystemC-AMS (BETA version) is presented. Many imperfections such as Voltage Control Oscillator (VCO) noise or reference jitter are included in this model. By comparing with the Matlab model, the SystemC/SystemC-AMS model can dramatically reduce simulation time. Also, by comparing with Analog Devices ADI SimPLL simulation results, Cadence simu-lation results and real measurement results, the accuracy of the SystemC/SystemC-AMS model is demonstrated. The paper shows the feasibility of a unified design environment for mixed-signal modelling based on SystemC/SystemC-AMS in order to reduce the cost and design time of electrical systems. Keywords—SystemC/SystemC-AMS, Phase Locked Loop (PLL), radio frequency, mixed-signal modeling, hardware description language. I.
Wireless Device Identification Based on RF Oscillator Imperfections
"... Abstract—The exploitation of slight imperfections of transmit-ters ’ hardware for identification of wireless devices has recently emerged as an effective method for security enhancement in wireless access networks. Previously, we introduced a model-based approach for device identification based on t ..."
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Abstract—The exploitation of slight imperfections of transmit-ters ’ hardware for identification of wireless devices has recently emerged as an effective method for security enhancement in wireless access networks. Previously, we introduced a model-based approach for device identification based on the imperfec-tions of two main wireless transmitter components: the digital-to-analog converter and the power amplifier. Here, motivated by applications with transmit power control mechanisms, we analyze the degree to which a device can be identified from the unique, power mode independent characteristics of a third main com-ponent: the RF oscillator. The model-based device identification method introduced here allows for effective device identification even from short time records at relatively low signal-to-noise ratios when exploiting imperfections of commercially used RF oscillators. Index Terms—radiometric identification, wireless security, pro-cess variations, RF oscillators I.
