Debashis Panigrahi

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As an increasing number of electronic systems are powered by batteries, battery life becomes a primary design consideration. Maxiimizing battery life requires system designers to develop an understanding of the capabilities and limitations of the batteries that power such systems, and to incorporate battery considerations into the system design process.(More)
Battery Life Estimation of Mobile Embedded Systems Debashis Panigrahi y, Carla Chiasserini z, Sujit Dey y, Ramesh Rao y, Anand Raghunathan x and Kanishka Lahiri y yDept. of Electrical and Computer Engg., University of California, San Diego, CA. zDipartimento di Electtronica, Politecnico di Torino, Italy. xC & C Research Labs, NEC USA, Princeton, NJ.(More)
In order to support diverse application requirements, a new standard called IEEE 802.11e is being proposed to improve quality of service in wireless LAN networks. There are, however, a few remaining challenges that need to be addressed in order to enable comprehensive QoS support using 802.11e. In this article we provide an overview of a few of these(More)
Wireless sensor networks are a fast-growing class of systems. They offer many new design challenges, due to stringent requirements like tight energy budgets, low-cost components, limited processing resources, and small footprint devices. Such strict design goals call for technologies like nanometer-scale semiconductor design and low-power wireless(More)
One of the main challenges in wireless sensor networks is to provide low-cost, low-energy reliable data collection. Reliability against transient errors in sensor data can be provided using the model-based error correction described in [1], in which temporal correlation in the data is used to correct errors without any overheads at the sensor nodes. In the(More)
One or the main challenges in adoption and deployment of wireless networked sensing applications is ensuring reliable sensor data collection and aggregation, while satisfying the low-cost, low-energy operating constraints of such applications. A wireless sensor network is inherently vulnerable to different sources of unreliability resulting in transient(More)
The availability of reusable IP-cores, increasing timeto-market and design productivity gap, and enabling deep sub-micron technologies have led to core-based system-onchip (SoC) design as a new paradigm in electronic system design. Validation of these complex hardware/software systems is the most time consuming task in the design flow. In this paper, we(More)
With the projected significant growth in mobile internet and multimedia services, there is a strong demand for next-generation appliances capable of wireless image communication. One of the major bottlenecks in enabling wireless image communication is the high energy requirement, which may surpass the current and future capabilities of battery technologies.(More)
60 0740-7475/00/$10.00 © 2000 IEEE IEEE Design & Test of Computers Major technologic and economic factors are driving a revolution in computer and communication system design. Networking applications like network processors, routers on chips and home gateways, portable products like wireless telephones and internet appliances, multimedia products like(More)