Deepali Pathak, SriHarsha Vardhan G, N. Vamsi, A. Dutta
{"title":"Wide Input Range Differential Dual Band RF Energy Harvesting System for Battery-Less RFID Applications","authors":"Deepali Pathak, SriHarsha Vardhan G, N. Vamsi, A. Dutta","doi":"10.1109/VLSIDCS47293.2020.9179947","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179947","url":null,"abstract":"A wide input range differential dual band RF energy harvesting system has been designed and presented for a battery less RFID applications. The proposed architecture includes an off-chip differential dual band antenna with differnetial dual band matching network followed by a CMOS cross coupled rectifier for RF-DC conversion which replaces a battery in several RFID applications. The proposed differential dual band matching network for the rectifier provides a peak efficiency of 60% at -12 dBm at 0.9 GHz and 64% at -16 dBm at 1.8 GHz. The proposed architecture achieves better efficiency for lower input power ranges from -20 dBm to 8 dBm which implemented using UMC 0.18µm CMOS Technology.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"32 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":"133824768","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}
Biswarup Ganguly, A. Das, Avishek Ghosal, Debanjan Das, Debanjan Chatterjee, Debmalya Rakshit, Epsita Das
{"title":"A Non-Invasive Approach for Fetal Arrhythmia Detection and Classification from ECG Signals","authors":"Biswarup Ganguly, A. Das, Avishek Ghosal, Debanjan Das, Debanjan Chatterjee, Debmalya Rakshit, Epsita Das","doi":"10.1109/VLSIDCS47293.2020.9179922","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179922","url":null,"abstract":"This paper aims to present an intelligent system for autonomous diagnosis of fetal arrhythmia based on fetal ECG recordings. The present scheme uses one dimensional (1D) convolution with a wavelet kernel to extract time domain features from subjects possessing normal fetal ECG and fetal arrhythmia ECG. Time- domain features obtained from the convoluted signals are fed to a trained artificial neural network (ANN) with gradient descent learning to identify and classify fetal ECG signals. The experimental evaluation of the proposed scheme has been tested with a six- channel fetal ECG signal, available in the NIFEADB database. An overall accuracy of 96% is obtained by evaluating standard performance metrics. The use of 1D convolution not only reduces the computational burden but also helps to specify the feature space to develop an intelligent system for portable embedded system applications.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"3 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":"130068556","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":"Secured MPFAL Logic for IoT Applications","authors":"Srilakshmi Kaza, Venkata N Tilak Alapati, Srinivasa Rao Kunupalli, Syamala Yarlagadda","doi":"10.1109/VLSIDCS47293.2020.9179891","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179891","url":null,"abstract":"Data security and energy efficiency are major concerns of applications designed for wireless body area networks. The latest advances in sensors and advanced device architectures have shown numerous possibilities in energy-efficient design styles in IC manufacturing. The need of a better battery life puts stringent constrains on power consumption of electronic systems. Hence the design and development of energy-efficient systems, circuits with security as main emphasis becomes more crucial in the field of Wireless Sensor Networks (WSN) and IoT. In these applications security is implemented using Advanced Encryption Standard (AES). In AES architecture substitution box is the most power consuming area and is often prone to Differential Power Analysis (DPA) attacks. In this paper, an 8-bit substitution box is implemented with an energy recovery modified PFAL (MPFAL) adiabatic logic using the FinFET device at a 45 nm technology node. The usefulness of the designed circuits with MPFAL is estimated by comparing the performance with our previous work. The compiled simulations shown that 49% of power dissipation reduction than ECRL based S-box design. The circuits delay is improved by 19% for the MPFAL S-box circuit.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"26 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":"114521965","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":"Far Field Profile Estimation in Mono Mode Step Index Optical Fiber with Kerr type Nonlinearity by a Simple Technique","authors":"Kushal Roy, Angshuman Majumdar, S. Gangopadhyay","doi":"10.1109/VLSIDCS47293.2020.9179851","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179851","url":null,"abstract":"In this paper the expression for far field pattern is presented using the method of power series for the fundamental LP01 mode in optical fiber with step type refractive index profile. The same power series expression is utilised for determination of the far field in fibers with Kerr type nonlinearity by applying iteration technique. We have presented the comparison of the pattern graphically for linear case and with Kerr nonlinearity. Far field pattern estimation in presence of nonlinearity is extremely important to understand and comprehend the performance of a single mode optical fiber particularly in the field of sensors. The presented method which utilizes Chebyshev technique involves prescription of the expression for estimation of the far field in an optical fiber and eliminates the requirement of solving complex mathematical expression. Further, the results obtained are in excellent agreement with the actual results. Thus our simple yet accurate method will prove to be of great assistance to the professionals in the fiber optics domain.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"36 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":"121325718","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}
N. A. Devi, Sumitra Nongthombam, Sayantan Sinha, R. Bhujel, S. Rai, W. I. Singh, Bibhu Prasad Swain
{"title":"Correlation Between I-V and Bonding Network of Fe3O4/rGO Nanocomposite","authors":"N. A. Devi, Sumitra Nongthombam, Sayantan Sinha, R. Bhujel, S. Rai, W. I. Singh, Bibhu Prasad Swain","doi":"10.1109/VLSIDCS47293.2020.9179905","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179905","url":null,"abstract":"Reduced graphene oxide based iron oxide (Fe3O4/ rGO) nanocomposites were synthesized by reduction of as synthesized graphene oxide (GO) in the existence of Fe(NO3)3 concentration. A various characterisation techniques such as SEM, XRD, FTIR, Raman spectroscopy, UV-Visible, and XPS have been utilised for the determination of the morphological, structural, chemical, microstructure, optical and compositional properties of as synthesized Fe3O4/rGO nanocomposite. The XRD results shows a broad peak of rGO at 26.51° which attributes to (002) plane and other two weak peaks appeared at 2θ= 36.4° and 43.1° that attributes to (311) and (400) planes respectively for Fe3O4 confirming the existence of Fe3O4 into the Fe3O4/rGO nanocomposite with poor crystallinity. The vibrational signatures owing to the O-H, C-H2, C=O, C=C, C-O and Fe-O bonds appeared at 3292 cm-1, 2990.42 cm-1, 2360.87 cm-1, 1558.13 cm-1, 1176.47 cm-1, and 575.64 cm-1 respectively. The Fe3O4 peak is obtained in between 100-800 cm-1 range in the Raman analysis and the value of ID/IG was obtained as 1.55. Furthermore, the current-voltage (I-V) measurement for Fe3O4/rGO nanocomposites exhibited non-Ohmic electrical conductivity.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"84 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":"124129794","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":"UHF RFID Spectrum Detection Threshold of the Secondary User for CSI Certainty","authors":"Aritra De, Tirthankar Datta","doi":"10.1109/VLSIDCS47293.2020.9179915","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179915","url":null,"abstract":"The leading focus of this paper is to right of entry using passport details of a passport holder through Ultra High-Frequency Radio Frequency Identification (UHF RFID) technology UHF RFID is a popular technique in recent days for the fifth-generation (5G) mobile technology. It’s a spectrum sharing technique known as cognitive radio technology. The Cognitive Interrogator Network (CIN) is a monitoring system for passport identification technology. In UHF RFID several funded user is known as the primary user and several free users is known as the secondary user is using CIN, a threshold is observed for the different primary user with varying number of antennas and the medium is detected.","PeriodicalId":446218,"journal":{"name":"2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)","volume":"24 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":"122464541","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 a Wideband Differential RF-Amplifier Using Indigenous 180nm Digital CMOS Technology","authors":"Dibyajyoti Mukherjee, Vinit Kumar, J. Dhar","doi":"10.1109/VLSIDCS47293.2020.9179907","DOIUrl":"https://doi.org/10.1109/VLSIDCS47293.2020.9179907","url":null,"abstract":"In this work, a standard four-metal layer, Indigenous 180nm Digital CMOS Process is chosen for the design of an inductorless wideband differential RF-Amplifier to overcome the limitations of SCL Foundry for designing RF circuits due to non-availabilities of top thick metal, RF models of inductors and interconnects. A capacitor cross-coupled gm - boosting scheme is introduced to improve the wideband gain, input, and output matching while retaining the advantages of the Common Gate (CG) amplifier topology. This design assures wideband response from 650MHz-2.8GHz with the reduced power consumption of 24mW while consuming the chip area of 0.8mm×1.8mm for 4-stage design.","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":"122846453","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}