S. Krishnakumar

ORCID: 0009-0009-6339-8718
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About
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Research Areas
  • Low-power high-performance VLSI design
  • Analog and Mixed-Signal Circuit Design
  • VLSI and Analog Circuit Testing
  • VLSI and FPGA Design Techniques
  • Electromagnetic Compatibility and Noise Suppression
  • Advancements in Semiconductor Devices and Circuit Design
  • Advanced DC-DC Converters
  • Sensor Technology and Measurement Systems
  • Distributed and Parallel Computing Systems
  • Silicon Carbide Semiconductor Technologies
  • Multilevel Inverters and Converters
  • Radio Frequency Integrated Circuit Design
  • Semiconductor materials and devices
  • Real-time simulation and control systems
  • Service-Oriented Architecture and Web Services
  • Advancements in PLL and VCO Technologies
  • 3D IC and TSV technologies
  • Quantum Computing Algorithms and Architecture
  • Quantum-Dot Cellular Automata
  • Engineering Education and Pedagogy
  • Tactile and Sensory Interactions
  • Smart Grid Energy Management
  • Green IT and Sustainability
  • Evolutionary Algorithms and Applications
  • Energy Harvesting in Wireless Networks

University of Illinois Chicago
2023-2025

Mahatma Gandhi University
2016-2020

JSS Science and Technology University
2020

General Hospital Ernakulam
2019

Cochin University of Science and Technology
2018

University of Kerala
2016

IBM (United States)
2003

IBM Research - Thomas J. Watson Research Center
2002

Oceano is a prototype of highly available, scaleable, and manageable infrastructure for an e-business computing utility. It enables multiple customers to be hosted on collection sequentially shared resources. The hosting environment divided into secure domains, each supporting one customer. These domains are dynamic: the resources assigned them may augmented when load increases reduced dips. This dynamic resource allocation flexible service level agreements (SLAs) with in where peak loads...

10.1109/inm.2001.918085 article EN 2002-11-13

Efficient delivery of current from PCB to point-of-load (POL) is a primary concern in modern high-power high-density integrated systems. Traditionally, 48 V power signal converted the low, POL voltage at board and/or package level. As interconnect has become dominant loss component, minimizing drop across laterally routed portions board-to-die (referred as horizontal interconnect) promising approach enhance efficiency system. Delivering lower vertically, higher should therefore be...

10.1109/socc58585.2023.10256973 article EN 2023-09-05

With traditional power delivery architectures in state-of-the-art high-power (>1 kW) high-current density systems A/mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ), over 30% of the system-wide is dissipated within system, i.e., during from a printed circuit board (PCB) to functional die(s). Historically, systems, efficient low-power voltage regulators have been placed on PCB, minimize conversion loss and advanced low-resistance...

10.1109/ectc51529.2024.00364 article EN 2024-05-28

As per the International Technology Roadmap for Semiconductors (ITRS) leakage power is growing exponentially and major part of total consumption in integrated device. With impact subthreshold gate leakage, static contributes more towards dissipation deep submicron nano CMOS technology. To overcome this problem several techniques has been proposed. In paper we analyses minimization circuit level. We propose a technique named "Feedback Sleeper-Stack (FS-S)" efficient reduction digital...

10.1109/icett.2016.7873668 article EN 2016-10-01

Pipelining is a technique used to reduce the energy consumption of device. This, when in combination with Vedic multipliers results low-power systems high speed. are based on concept mathematics, which an ancient Indian method computing mathematical operations. The algorithm system coded using Verilog Hardware Description Language implemented spartan 3E series Field Programmable Gate Array (FPGA). design shows decrease power and generates faster. performance compared that few existing...

10.1109/icoei.2018.8553853 article EN 2018 2nd International Conference on Trends in Electronics and Informatics (ICOEI) 2018-05-01

There is an ever increasing demand for low-power and high-speed designs due to the emergence of portable, handheld gadgets which run on batteries. More more research works in VLSI are concentrated different methodologies reduce power consumption a system also increase its throughput. Multiplication important operation almost all computations. Design multipliers with low utilization increased throughput will lead systems reduced usage high speed. Vedic Multipliers based Urdhava Tiryakbhyam...

10.1109/icraecc43874.2019.8995165 article EN 2019-03-01

Oceano is management software for a eUtility infrastructure capable of providing cost-effective, autonomic resource allocation multiple customer or application domains, in response to existent performance and availability conditions. The control layer provides mechanisms manage resources. This consists director set managers. formulates configurations coordinates their execution through These managers maintain restore state carry out detailed configuration tasks. paper describes the model its...

10.1109/noms.2002.1015620 article EN 2003-06-25

10.1145/3649476.3658774 article EN Proceedings of the Great Lakes Symposium on VLSI 2022 2024-06-10

Objectives: This work aims to analyze the dependency of VDD, T and CR (Cell Ratio) on cell stability in terms Read Noise Margin (RNM) 32nm technology by N- curve butterfly graphical methods. The advantages considering both voltage current information for SRAM measurement have been reported. Methods/Statistical Analysis: calculation is a central concern submicron CMOS process nodes, as they reason increase dies variability scaling. Stability typically calculated Static (SNM). As it varies...

10.17485/ijst/2017/v10i29/116049 article EN Indian Journal of Science and Technology 2017-02-01

This paper presents a novel approach to the accurate time domain analysis and design of analog circuits containing storage elements by making use 'companion models'. The emphasis is given using fixator-norator pair, which now ingenious in circuit design. Backward Euler method can render element an equivalent circuit, only linear components viz. current source or voltage resistance. distinctive feature allows us generate companion models for every step, whereby persuading application pairs...

10.1016/j.procs.2016.07.301 article EN Procedia Computer Science 2016-01-01

&lt;span&gt;With an ever growing demand for low-power devices, it is a general trend to search ways reduce the power consumption of system. Multipliers are important requirement in applications linked Digital Signal Processing, Communication Systems, Optical Computing, Nanotechnology, Low-Power Very Large Scale Integration and Quantum Computing. Conventional mathematics makes multiplication very long time consuming process. The use Vedic has led great reduction required such calculations....

10.11591/ijeecs.v16.i3.pp1265-1272 article EN cc-by-nc Indonesian Journal of Electrical Engineering and Computer Science 2019-12-01

During the 20th century, medical beds underwent technological advancements, especially making them smarter in patient care. The past fifteen years have brought various changes concept of smart bed technology, but no definitive evidence project's existence has been presented. These and previous systems typically use at least one push button or pressure-sensitive type switch to implement control articulation capabilities. Smart are designed assist patients with mobility issue as it will allow...

10.46647/ijetms.2023.v07i06.031 article EN International Journal of Engineering Technology and Management Sciences 2023-01-01

This paper presents a novel method for the design of analog integrated circuit, making use fixator–norator pairs performance and biasing design. Fixators are distinctive tools setting critical parameter at desired value whereas pairing norator renders these parameters into adequate supporting components, mainly resistors. For ICs, active loads current mirrors serve as components. Hence, may abbreviate defining dynamic static resistance that should be affirmative with given The proposed...

10.1142/s0218126617501006 article EN Journal of Circuits Systems and Computers 2017-01-18

Feedback is an integral part of many analog circuits. This paper presents a method for the design feedback networks amplifiers based on Fixator–Norator Pair (FNP). The process required transfer function includes inserting proper FNPs to equivalent small signal model target circuit, with norators lying along path, and helps network components. Care must be taken ensure that added should not alter original DC biasing circuit. A number examples are worked out in this using proposed results...

10.1142/s0218126618500500 article EN Journal of Circuits Systems and Computers 2017-07-31

This article stabilizes the significant link between static power and reliability. More particularly, shows general leakage reduction techniques provide a valid solution to reduce current under Negative Bias Temperature Instability (NBTI) condition. The state preserving reduces effectively, while NBTI on PMOS transistor increases threshold voltage which leads further total reduction. work investigates effect of techniques. Three namely Forced Stacking, Sleepy Stack Feedback Sleeper-Stack...

10.1109/iccsdet.2018.8821223 article EN 2018-12-01

An implementation of Data Encryption Standard (DES), one the most widely accepted cryptographic standards, using pipelining concept is described in paper.Pipelining an approach used to reduce power consumption systems.The simulation design employs Xilinx software and results show that number slices device has reduced compared previous available works.This reduction ensures lower use by system.The throughput system also increased due pipelining.

10.7753/ijcatr0510.1005 article EN International Journal of Computer Applications Technology and Research 2016-10-19

Nullor elements have applications not only in analog behaviour modeling but also circuit design and analysis.Fixator-norator pair, the emerging tool is a combination of nullor sources.A method for realization fixator-norator pair discussed this paper.Application into makes it possible to perform AC DC designs linear like way.Fixator fixes critical biasing spec at design, whereas pairing norator finds value power conducting components or sources that meets design.A scaling amplifier an active...

10.21817/ijet/2016/v8i5/160805411 article EN International Journal of Engineering and Technology 2016-10-31
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