R. Cabral

• Technical University of Lisbon

Internet of Things (IoT) applications present significant challenges regarding security, safe operation and power management. In the hardware part of each IoT device, CMOS memories occupy a significant percentage of the Integrated Circuits’ silicon area. With device scaling down, performance and reliability challenges exist, namely caused by parame...

Ultra-low-power strategies have a huge importance in today's integrated circuits designed for internet of everything (IoE) applications, as all portable devices quest for the never-ending battery life. Dynamic voltage and frequency scaling techniques can be rewarding, and the drastic power savings obtained in subthreshold voltage operation makes th...

Human-Computer Interaction (HCI) applications need reliable hardware and the development of today’s sensors and cyber-physical systems for HCI applications is critical. Moreover, such hardware is becoming more and more self-powered, and mobile devices are today important devices for HCI applications. While battery-operated devices quest for the nev...

The low power quest in CMOS integrated circuits is pushing power-supply voltages to enter the subthreshold levels. The drastic power savings obtained in subthreshold voltage operation makes this an important technique to be used in battery-operated devices. However, working at subthreshold power-supply voltages, frequency operation has to be reduce...

The Internet of Things (IoT) paradigm is enabling easy access and interaction with a wide variety of devices, some of them self-powered, equipped with microcontrollers, sensors and sensor networks. Low power and ultra-low-power strategies, as never before, have a huge importance in today’s CMOS integrated circuits, as all portable devices quest for...

This paper describes the high level behavioral model of a baseband processor to be implemented in FPGA devices. The final target is a reconfigurable transceiver for different technologies in the 60 GHz. For now, we implement the complete model of the AV mode of IEEE 802.15.3c. Simulations with the Matlab/Simulink model permitted to determine the ad...

This paper describes the implementation of the main digital blocks of a DAB receiver. Hardware design is coded using HDL languages. Implementation is realized in a Virtex2 device. The integration of digital blocks, in order to implement a complete receiver, is analyzed