Category: Past Projects

  • Near-Threshold Computing and Deeply-Scaled Devices

    Sponsors: DARPA PERFECT program, and National Science Foundation (the Software and Hardware Foundations). Device Simulation and Performance Prediction for Deeply-Scaled FinFET Devices As the geometric dimension of transistors scales down, FinFET devices are proved to better address the challenges facing conventional planar CMOS devices. Due to manufacturing limitations, deeply-scaled FinFET devices below 10nm feature size have…

  • Therminator: a thermal simulator for smartphones

    Thermal design and management of smartphones is concerned with a new challenge: the constraint of skin temperature. This constraint refers to the fact that the temperature at the device skin must not exceed a certain upper threshold. Reference showed that most people experience a sensation of heat pain when they touch an object hotter than…

  • Energy Efficiency in the Cloud and Data Centers

    Request Dispatch, Resource Allocation, DVFS, and Geographically Load Balancing in Data Centers The cloud computing paradigm is quickly gaining popularity because of its advantages in on-demand self-service, ubiquitous network access, location independent resource pooling, and transference of risk. The ever increasing demand for the cloud computing service is driving the expense of the data centers…

  • Hybrid Electrical Energy Storage Systems: Design, Optimization, and Validation

    Sponsor: National Science Foundation Conventional EES systems only consist of a single type of EES element. Unfortunately, no available EES element can fulfill all the desired performance metrics of an ideal storage means, e.g., high power/energy density, low cost/weight per unit capacity, high round-trip efficiency, and long cycle life. An obvious shortcoming of a homogeneous EES…

  • Dynamic Power Management and Voltage/Frequency Scaling

    Dynamic Power Management Using Model-Free Reinforcement Learning and Bayesian Classification To cope with the variations and uncertainties that emanate from hardware and application characteristics, dynamic power management (DPM) frameworks must be able to learn about the system inputs and environment and adjust the power management policy on the fly. We present an online adaptive DPM…

  • Photovoltaic (PV) System Design, Control, and Optimization

    Sponsor: National Science Foundation PV systems have been widely deployed in electronic and electrical systems of various scales, such as embedded systems, hybrid electric vehicles, home appliances, satellites and power plants. Due to the intermittent nature of solar energy, power management techniques are imperative for maximizing the output power of a PV system. Maximum Power…

  • Optimal Design of Power Delivery Network for System on Chip

    Spornsor:Defense Advanced Research Projects Agency, National Science Foundation, and the Semiconductor Research Corporation. Project Summary: While power modeling and dynamic power management in various VLSI platforms have been heavily investigated, there is one critical factor that has often been overlooked, and that is the power conversion efficiency of the power delivery network (PDN) in the…

  • Architecture Development and Design Optimization of Hybrid Electrical Energy Storage Systems

    There are examples of actual deployment of grid-scale EES systems to mitigate the gap between the supply and demand. In addition, most stand-alone renewable energy sources, such as solar energy, wind power, and hydropower require an EES system. However, current EES systems are mainly homogeneous, that is, they consist of a single type of EES…

  • Design, Optimization, and Mapping of Quantum Algorithms to Quantum Circuit Fabrics

    Quantum information processing has captivated atomic and optical physicists as well as theoretical computer scientists by promising a model of computation that can improve the complexity class of several challenging problems. To be able to do efficient quantum computation, one needs to have an efficient set of computer-aided design tools in addition to the ability…

  • Designing Reliable and Power-Efficient VLSI Circuits and Systems

    Digital information management is the key enabler for the unparalleled rise in productivity and efficiency gains experienced by the world economies. Computing and information processing systems are important elements of the world’s digital infrastructure by providing ever-present and ever-increasing general purpose and data-driven processing and storage capabilities for both wired and mobile users. As such,…