{"title":"An area and performance aware ECG encoder design for wireless healthcare services","authors":"Bharat Garg, Sameer Yadav, G. K. Sharma","doi":"10.1109/ISVDAT.2016.8064861","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064861","url":null,"abstract":"Modern wearable devices demand low power high performance medical signal monitoring to achieve efficient and reliable health-care services. The electrocardiogram (ECG) signal which is used to diagnose heart diseases requires 24 hour monitoring. Efficient VLSI implementation of lossless ECG encoder is the critical requirement in wireless health care services. This paper presents an area efficient and high performance lossless ECG encoder that utilizes a single stage Huffman table to provide compressed ECG data. In the proposed ECG encoder architecture, low range of ECG data is encoded via small Huffman table whereas out of range data is segmented into upper and lower parts. These upper and lower parts are encoded by the same Huffman table in the two consecutive clock cycles. This architecture is implemented in MATLAB and simulated with MIT-BIH Arrhythmia database. The simulation results of the proposed ECG encoder show 72.87% more compression over the existing ECG encoder. To evaluate the hardware efficiency, the encoder is implemented in Verilog and synthesized with Synopsys Design Compiler using 90nm PDK. The results show that proposed encoder requires 12.11% less area and provides 2.1X improved performance over the existing encoder.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121279054","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":"Density gradient quantum corrections based performance optimization of triangular TG bulk FinFETs using ANN and GA","authors":"A. Gaurav, S. S. Gill, Navneet Kaur, M. Rattan","doi":"10.1109/ISVDAT.2016.8064854","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064854","url":null,"abstract":"In this paper the electrical performance of triangular trigate bulk FinFET at 20 nm has been optimized using Artificial Neural Network (ANN) and Genetic Algorithm (GA). For training the ANN a set of 42 samples with two inputs and four outputs was created by 3D TCAD numerical simulator using Drift Diffusion approach with Density Gradient Quantum Corrections model. The optimal value of fin height (Hfin) and gate oxide thickness (Tox) was found using GA corresponding to which the short channel effects like drain induced barrier lowering (DIBL), subthreshold swing (SS) and off current (loFF) were minimum and on current (Ion) was maximum. The ANN and GA have been found to successfully predict and optimize the electrical performance of triangular TG FinFET for different device parameters like Hfin and Tox. After ANN and GA optimization Ion Hoff improved by 11.86 %, DIBL reduced by 32.35 % and off state leakage current reduced by 40.65% at expense of 33.41% reduction in the drive current.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121064631","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":"A low-cost energy efficient image scaling processor for multimedia applications","authors":"Bharat Garg, V. N. S. K. C. Goteti, G. K. Sharma","doi":"10.1109/ISVDAT.2016.8064888","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064888","url":null,"abstract":"Image scaling is one of the widely used techniques in various portable devices to fit the image in their respective displays. Traditional image scaling architectures consume more power and hardware, making them inefficient for use in portable devices. In this paper, a low complexity image scaling algorithm is proposed. In the proposed algorithm, the target pixel is computed either by bilinear interpolation or by replication. The edge catching module in the architecture determines the method of computation which makes the design energy efficient. Further, algebraic manipulation is done and the resulting pipelined architecture shows significant reduction in hardware cost. In order to evaluate the efficacy, the proposed and existing algorithms are implemented in MATLAB and simulated using standard benchmark images. The proposed design is synthesized in Synopsys Design Compiler using 90-nm CMOS process which shows 43.3% reduced gate count and 25.9% reduction in energy over existing architectures without significant degradation in quality.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122781447","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}
K. Garje, Shravan Kumar, A. Tripathi, Gillela Maruthi, Madhava Kumar
{"title":"A high CMRR, high resolution bio-ASIC for ECG signals","authors":"K. Garje, Shravan Kumar, A. Tripathi, Gillela Maruthi, Madhava Kumar","doi":"10.1109/ISVDAT.2016.8064890","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064890","url":null,"abstract":"A High CMRR, High-resolution signal processing bioASIC circuit for wireless and wearable systems is presented. The chip consists of High CMRR Instrumentation Amplifier (IA) integrated with high accuracy pipeline ADC. The bio-ASIC front-end is built using current balance IA circuit followed by high pass and low pass filters. A High resolution, wide dynamic range, integrated Pipeline ADC allows input swing of ±1V. The ASIC is fabricated in 0.13μm CMOS process technology. The measured CMRR and integrated input referred noise of the circuit is 176dB at 150Hz and 4.5μν over the bandwidth of 0.1–150Hz. The Input Common Mode Range (ICMR) is 0–1.65V and the dynamic range is ±5mV. The ADC offers ENOB of 12.8 at 6 MSPS sampling speed & ± 0.75LSB of differential nonlinearity. The power consumption of the Instrumentation amplifier circuit is 33μW with a 3.3V supply.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129772754","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":"On minimization of test power through modified scan flip-flop","authors":"Satyadev Ahlawat, Jaynarayan T. Tudu","doi":"10.1109/ISVDAT.2016.8064878","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064878","url":null,"abstract":"Power dissipation during scan testing of modern high complexity designs could be many folds higher than the functional operation power, which is a well established observation. High test power dissipation can severely affect the chip yield and hence the final cost of the product. This makes it of utmost important to develop low power scan test methodologies. In this work we have proposed a modified scan flip-flop design which uses a low cost dynamic slave latch to shift the test vectors and allows the static slave latch to retain the responses from the previous test vector. Through bypassing the slave latch during loading/unloading operation the proposed design eliminates redundant switching activity in combinational logic and hence minimizes test power. Furthermore the proposed scan flip flop design does not use any gating element in functional path, and hence the functional performance overhead is comparatively very less than the previously proposed output gating techniques so far.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134130280","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":"SAT: A new application mapping method for power optimization in 2D — NoC","authors":"Aravindhan Alagarsamy, Lakshminaraynan Gopalakrishnan","doi":"10.1109/ISVDAT.2016.8064880","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064880","url":null,"abstract":"Application mapping is one of the challenging and most imperative research areas in Networks on Chip (NoC). Mapping of NoC is an NP-hard problem and varieties of heuristics methods have been adopted to solve it so far. Heuristic search methods are generally modeled to fit a specific problem rather than range of applications. Based on this study, we propose improvised cluster based mapping with meta-heuristic search algorithm called simulated annealing with tabu search (SAT) to analyze and optimize the power consumption of NoC based systems. The performance and efficiency of proposed methodology has been verified with the experiments conducted on various types of benchmarks in NoC. Experimental results show a promising improvement in power consumption by 5.5 % for PIP & MWD benchmarks, 4.67 % for VOPD and 4.17 % for MPEG-4 benchmark compared to the best known related work.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126536625","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}
K. N. Sankar, Abhishek Srivastava, Baibhab Chatterjee, K. K. Rakesh, M. Baghini
{"title":"FSK demodulator and FPGA based BER measurement system for low IF receivers","authors":"K. N. Sankar, Abhishek Srivastava, Baibhab Chatterjee, K. K. Rakesh, M. Baghini","doi":"10.1109/ISVDAT.2016.8064901","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064901","url":null,"abstract":"This paper presents a binary frequency shift keying (BFSK) demodulator for low intermediate frequency (IF) receivers and an FPGA based bit error rate (BER) measurement platform for the same. The custom made demodulator is fabricated in 180 nm CMOS mixed mode technology, which occupies an area of 0.09 mm2 and consumes 80 μW power from 1.8 V supply. When integrated with a low IF (2 MHz) receiver front end for Medical Device Radio Communication (MedRadio) spectrum at 400 MHz, the measured BER was less than 10−3 at a data rate of 200 kbps for an FSK frequency deviation of 150 kHz.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133021856","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}
Anindita Chakraborty, Rakesh Das, Chandan Bandyopadhyay, H. Rahaman
{"title":"BDD based synthesis technique for design of high-speed memristor based circuits","authors":"Anindita Chakraborty, Rakesh Das, Chandan Bandyopadhyay, H. Rahaman","doi":"10.1109/ISVDAT.2016.8064842","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064842","url":null,"abstract":"Recently, a passive device — memristor has received wide attention in nano-scale design due to its applications in the area of nanoelectronic memory design, neuromorphic computing and logic design. This passive element is non-volatile in nature and has dual properties of memory and resistor. In recent time, the application of this device in designing high speed logic circuits has now opened a new research domain in nano-scale design. This work presents an efficient design technique implementing logic functions using memristor. The proposed design methodology not only speed-up the response time of the circuits but can also deal with functions with larger input size (beyond 100 variables). Our entire design scheme is divided in two phases. In the first phase, we use Binary Decision Diagrams (BDDs) to represent input logic functions and in second phase, a technology mapping is performed that generates memristor based circuits corresponding to this BDD graphs. Comparative analysis with existing works is given and we find that our design steadily improves the average performance of circuits.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127956799","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}
Om. Prakash, S. Maheshwaram, Mohit Sharma, B. Anand, A. Saxena, S. Manhas
{"title":"A unified Verilog-A compact model for lateral Si nanowire (NW) FET incorporating parasitics for circuit simulation","authors":"Om. Prakash, S. Maheshwaram, Mohit Sharma, B. Anand, A. Saxena, S. Manhas","doi":"10.1109/ISVDAT.2016.8064852","DOIUrl":"https://doi.org/10.1109/ISVDAT.2016.8064852","url":null,"abstract":"This paper presents a unified Verilog-A compact model for lateral silicon nanowire field effect transistor (SiNW FET). The model incorporates all nanoscale effects including short channel effects, velocity saturation, mobility degradation, and quantization. Importantly, the model includes geometry dependent, TCAD calibrated, scalable parasitic capacitances and parasitic resistance models, which are dominant at highly scaled dimension. The model is well calibrated to generate the TCAD I-V and C-V characteristics for single and multiwire long, short channel devices. In addition, the model also reproduces I-V characteristics of the reported fabricated devices by different groups to a good accuracy, which underscores the accuracy of the model. Further using the compact model, the static and dynamic analysis of CMOS inverter with 15nm gate length is presented, which match well with TCAD simulations. Using this model the impact of device parasitic on circuit performance is studied by varying device extension length. The model is able to well predict the parasitic components for circuit performance, and is an important tool for design of NW based analog and digital circuits such as differential amplifier, current mirror, cell library and SRAM. The developed model is highly time efficient than TCAD simulator for NW based circuit simulations.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127234318","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":"Tutorials in VDAT 2016","authors":"","doi":"10.1109/isvdat.2016.8064838","DOIUrl":"https://doi.org/10.1109/isvdat.2016.8064838","url":null,"abstract":"Provides an abstract for each of the tutorial presentations and a brief professional biography of each presenter. The complete presentations were not made available for publication as part of the conference proceedings.","PeriodicalId":301815,"journal":{"name":"2016 20th International Symposium on VLSI Design and Test (VDAT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125345197","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}