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Guest Editorial: Current Trends in Low-Power Design
Naehyuck Chang, Jörg Henkel
Article No.: 1
Nanometer MOSFET Effects on the Minimum-Energy Point of Sub-45nm Subthreshold Logic---Mitigation at Technology and Circuit Levels
David Bol, Denis Flandre, Jean-Didier Legat
Article No.: 2
Subthreshold operation of digital circuits enables minimum energy consumption. In this article, we observe that minimum energy Emin of subthreshold logic dramatically increases when reaching 45nm CMOS node. We demonstrate by circuit...
The emergence of Negative Bias Temperature Instability (NBTI) as the most relevant source of reliability in sub-90nm technologies has led to a new facet of the traditional trade-off between power and reliability. NBTI effects in fact manifest...
Behavior-Level Observability Analysis for Operation Gating in Low-Power Behavioral Synthesis
Jason Cong, Bin Liu, Rupak Majumdar, Zhiru Zhang
Article No.: 4
Many techniques for power reduction in advanced RTL synthesis tools rely explicitly or implicitly on observability don’t-care conditions. In this article we propose a systematic approach to maximize the effectiveness of these techniques by...
Low-Power Hypercube Divided Memory FFT Engine Using 3D Integration
Thorlindur Thorolfsson, Samson Melamed, W. Rhett Davis, Paul D. Franzon
Article No.: 5
In this article we demonstrate a floating point FFT processor that leverages both 3D integration and a unique hypercube memory division scheme to reduce the power consumption of a 1024 point FFT down to 4.227μJ. The hypercube memory...
vGreen: A System for Energy-Efficient Management of Virtual Machines
Gaurav Dhiman, Giacomo Marchetti, Tajana Rosing
Article No.: 6
In this article, we present vGreen, a multitiered software system for energy-efficient virtual machine management in a clustered virtualized environment. The system leverages the use of novel hierarchical metrics that work across the different...
Energy-Efficient Progressive Remote Update for Flash-Based Firmware of Networked Embedded Systems
Jinsik Kim, Pai H. Chou
Article No.: 7
Firmware update over a network connection is an essential but expensive feature for many embedded systems due to not only the relatively high power consumption and limited bandwidth, but also page-granular erasure before rewriting to flash memory....
Energy- and Performance-Efficient Communication Framework for Embedded MPSoCs through Application-Driven Release Consistency
Chenjie Yu, Peter Petrov
Article No.: 8
We present a framework for performance-, bandwidth-, and energy-efficient intercore communication in embedded MultiProcessor Systems-on-a-Chip (MPSoC). The methodology seamlessly integrates compiler, operating system, and hardware support to...
A Simultaneous Input Vector Control and Circuit Modification Technique to Reduce Leakage with Zero Delay Penalty
Nikhil Jayakumar, Sunil P. Khatri
Article No.: 9
Leakage power currently comprises a large fraction of the total power consumption of an IC. Techniques to minimize leakage have been researched widely. However, most approaches to reducing leakage have an associated performance penalty. In this...
Scan-Cell Reordering for Minimizing Scan-Shift Power Based on Nonspecified Test Cubes
Yu-Ze Wu, Mango C.-T. Chao
Article No.: 10
This article presents several scan-cell reordering techniques to reduce the signal transitions during the test mode while preserving the don’t-care bits in the test patterns for a later optimization. Combined with a pattern-filling...
ACM Journal on Emerging Technologies in Computing Systems
Montek Singh, Steven M. Nowick
Article No.: 11