{"title":"Design of Low power & High Performance Multi Source H-Tree Clock Distribution Network","authors":"Srivatsa V G, A. Chavan, Divakar Mourya","doi":"10.1109/VLSIDCS47293.2020.9179954","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179954","url":null,"abstract":"Power and timing optimization of Clock Distribution Networks (CDN) in lower technology nodes is a difficult challenge in the quest to develop low-power and high- performance designs. The drawbacks of conventional Clock Tree Synthesis (CTS) - high power consumption, increased latency and skew are targeted. Multi Source Clock Tree Synthesis (MSCTS) with a symmetric H-Tree is designed and implemented using 7nm technology node. Multiple clock sources in the design improves clock latency and skew significantly leading to reduction of buffers added to optimize hold timing, hence resulting in improvement of overall power dissipation along with clock QoR metrics. Compared to conventional clock distribution network, latency, skew and power consumption is improved by 28%, 13% and 32.8% respectively.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126808632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Power Allocation in NOMA Using Cournot Game Theory","authors":"Aritra De, Tirthankar Datta","doi":"10.1109/VLSIDCS47293.2020.9179875","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179875","url":null,"abstract":"The fifth Generation wireless communication performance can be improved by NOMA technology where the same time and frequency is allocated to a different user. NOMA technology deals with multiple user hence it’s also known as Multiple Input Multiple Output (MIMO). Power allocation in NOMA is one of the emerging fields among the researcher. The power allocation can be done using different optimization technology; game theory is one of them. In this article, Cournot game-theoretic approach is used to observe the power allocation in NOMA technology.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128280900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Harmonic Compensation for Nonlinear Loads Fed by Grid Connected Solar Inverters Using Active Power Filters","authors":"S. Mukherjee, S. Mazumder, S. Adhikary","doi":"10.1109/VLSIDCS47293.2020.9179882","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179882","url":null,"abstract":"The paper presented shows use of active power filter for improving the power quality of a three phase power network having grid tied bidirectional solar inverter and a nonlinear load. In particular, operation of the active filter in the context of quality of line current waveform has been outlined. In this study a three phase PWM voltage source inverter has been used as active power filter. The PWM signals for the shunt active power filter have been generated using instantaneous reactive power theory in time domain. The study also shows application of symmetrical component theory for synchronization of the solar inverter with the grid. The proposed power network has been simulated using PSIM software.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121430903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intelligent Energy Management Systems for Optimal Techno-Commercial Benefit in DC Micro-grids: A Review","authors":"Birendra Krishna Ghosh, Sawan Sen, Sandip Chanda","doi":"10.1109/VLSIDCS47293.2020.9179910","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179910","url":null,"abstract":"The demand for clean, high quality and low rate Electrical Energy is on rising scale in the last decade. Both the traditional ways of generating power and delivering the same through long transmission lines are less appreciated due to the cost associated and also the detrimental effects on environment. Renewable Energy Sources (RES) may be achieved clean if smart integration of the same. Present micro-grids are supported by energy management systems (EMS) which only optimise resource management to supply continuous power to the consumers. The economic considerations such as costing profile of the sources, demand response and price discovery along with technological considerations like power quality assessment and standardisation is however, absent in these systems. Moreover, the EMS developed are location and operational condition specific that is these EMS cannot be programmed as per the requirement of the user. Hence the present EMS in use, in islanded or off-grid condition may not select the appropriate source to cater the demand requested and also is not flexible enough. Also the EMS can be developed in a way that all the information and constraints can be programmed in it. Some optimisation techniques can be used to solve the objective function. In addition to this, the intelligent EMS is proposed to improve the power quality by continuously monitoring a few standard performance indices. Though the work is based on off grid independent micro grid but the EMS will be developed with such an algorithm for both mode of operation -islanded and conventional so that which can provide benefits for off-grid operations also.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129385162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"FPGA Implementation of Symmetric Systolic FIR Filter using Multi-channel Technique","authors":"Debarshi Datta, Sahil Akhtar, H. Dutta","doi":"10.1109/VLSIDCS47293.2020.9179926","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179926","url":null,"abstract":"High performance Finite Impulse Response (FIR) filters are extensively used in digital signal processing (DSP), communications, image processing and many more areas. This paper approaches Field Programmable Gate Arrays (FPGAs) based on systolic FIR architectures using multi-channel technique with symmetric coefficients to ensure faster response and optimum area. The embedded Digital Signal Processing (DSP) blocks for its multiply-accumulator (MAC) perform accurate operations where the filter architecture is efficiently realized in the reconfigurable hardware platform. The characteristics of systolic FIR architecture are synchrony, modularity and regularity to make a perfect filter design. Also its pipeline structure provides high throughput and symmetric technique reduces the memory size. Both of these techniques improve the overall performance of the FIR architecture in FPGA domain. The proposed FIR architecture has been successfully verified by Xilinx ISE 14.7 tool and then implemented on Virtex-5 FPGA board. The design method shows a great improvement of maximum operating frequency and save the area as compared to the earlier architectures.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116097358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative Study of Doublet OTA Circuit Topologies Operating in Weak Inversion Mode for Low Power Analog IC Applications","authors":"Rishov Aditya, Saheli Sarkel, Soumya Pandit","doi":"10.1109/VLSIDCS47293.2020.9179858","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179858","url":null,"abstract":"In this work, an attempt has been made to present a comprehensive comparative study of CMOS based Doublet OTA topologies typically in weak inversion. The impact of varying the types of load(active or balanced) and area of input differential pairs of three different Doublet OTA configurations on various performance parameters like transconductance gain, 1-dB reference point and Total Harmonic Distortion has been thoroughly investigated by simulating by simulating each configuration using Cadence Virtuoso tool. The results obtained have been summarized and presented in this paper as a ready reference to circuit designers for future design applications.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116265667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design of Modified Grounded Microstrip Antenna for Dual Band Operation in Wireless Communication","authors":"Avisankar Roy, S. Mukherjee, S. Bhunia","doi":"10.1109/VLSIDCS47293.2020.9179936","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179936","url":null,"abstract":"A design of a dual-band rectangular microstrip antenna using a modified ground plane has been presented in this article. The ground plane has been shifted to an optimum position and a strip has been attached to the ground. Modified ground plane changes the effective capacitance and inductance in the equivalent circuit of microstrip patch and thus a lower frequency has been resonated. The overall size of the presented antenna is 25×23mm2. The resonating frequencies of the designed antenna have been found as 2.6GHz and 5.5GHz. The compactness of the designed antenna has been obtained as 81.2% with respect to the lowest resonant frequency and the proposed antenna has been found to be applicable for WiMAX and HiperLAN-2 applications.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114845682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sudipta Ghosh, S. Kundu, S. Guha, J. Ghosh, Prithviraj Pachal, S. Sarkar
{"title":"Effect of Body Thickness on Device Performance of Graded Channel Tri-Metal Double Gate Stack Gate TFET","authors":"Sudipta Ghosh, S. Kundu, S. Guha, J. Ghosh, Prithviraj Pachal, S. Sarkar","doi":"10.1109/VLSIDCS47293.2020.9179899","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179899","url":null,"abstract":"In this work the authors presented a 2-D analytical drain current model of graded channel tri-metal double gate (TMDG) TFET with stacked gate-oxide structure. The parabolic approximation method with suitable boundary conditions has been applied to solve Poisson’s equation of surface potential in the channel region. Therefor the tunneling generation rate is integrated over source-channel junction area to derive the drain current expression. The proposed model demonstrates the impact of graded channel as a potential barrier at the channel region to reduce leakage current in OFF state and as well as in ON state. High doping concentration at the junction of source and channel boosts up band-to-band tunneling, which reduces subthreshold slope consequently. Proper choice of work function for the gate electrodes gives better results in terms of ION/IOFF ratio and SS. The stack gate structure provides better gate control over channel region with lesser leakage current. The explanatory aftereffects of the proposed model have been approved against the TCAD reproduction information in this work.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123655281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stability of Hybrid SET-CMOS Based NOT Gate","authors":"Arpita Ghosh","doi":"10.1109/VLSIDCS47293.2020.9179937","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179937","url":null,"abstract":"This work demonstrates the stability analysis of SET-CMOS based hybrid NOT gate. Under different temperature condition the stability of the circuit is checked using one of the popular software SIMON, dedicated for the Single electron Device simulation. For the straightforward stability simulation of the circuit in SIMON simulator the circuit has been modified by replacing the MOS with an equivalent resistance as SIMON does not support the co-simulation of SET and MOSFET. Simulation results of the logic operation and stability analysis are furnished in support.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123171352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}