{"title":"Estimation of Leakage Distribution Utilizing Gaussian Mixture Model","authors":"Hyun-jeong Kwon, Young Hwan Kim, Seokhyeong Kang","doi":"10.1109/ISOCC.2018.8649978","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649978","url":null,"abstract":"In this paper, we propose a novel method which utilizes the Gaussian Mixture Model (GMM) to estimate the leakage distribution of a circuit. Our proposed method assumes that the leakage distribution can be represented using the GMM which can cover any continuous function. After the GMM clustering using the leakage simulation data, the leakage distribution of the input circuit can be obtained. The experimental results with the K-S test showed that the proposed method exhibited 1.82e+05 times larger p-value and 7.74e-01 times smaller K-S statistics compared to the state-of-the-art benchmark method on average.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"13 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125823214","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}
Hyunhoon Lee, Younghoon Byun, Seokha Hwang, Sunggu Lee, Youngjoo Lee
{"title":"Fixed-Point Quantization of 3D Convolutional Neural Networks for Energy-Efficient Action Recognition","authors":"Hyunhoon Lee, Younghoon Byun, Seokha Hwang, Sunggu Lee, Youngjoo Lee","doi":"10.1109/ISOCC.2018.8649987","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649987","url":null,"abstract":"In this paper, 3D convolutional neural networks (CNNs) are simplified to reduce the energy consumption of the action recognition process. Instead of using floating-point weights and input values, which results in a huge amount of processing energy, we introduce a systematic way to quantize all the values of 3D CNNs without degrading the recognition accuracy. Simulation results show that, compared to the baseline CNN architecture, the proposed method significantly reduces the computational complexity as well as the memory requirements.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126721200","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":"12-bit 20M-S/s SAR ADC using C-R DAC and Capacitor Calibration","authors":"Eunji Youn, Young-Chan Jang","doi":"10.1109/ISOCC.2018.8649894","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649894","url":null,"abstract":"A successive approximation register (SAR) analog-to-digital converter (ADC) using a capacitor-resistor(C-R) digital-to-analog-converter (DAC) is proposed to implement the resolution of 12 bits maintaining the area for 10 bits. A calibration for upper-bit capacitors of the C-R DAC is proposed to increase the performance of the static and dynamic performances. To evaluate the proposed ADC, a 12-bit 20M-S/s SAR ADC is implemented using a 110-nm CMOS process with a supply of 1.2 V. The area and power consumption of the proposed ADC are 0.204 mm2 and 1.24 mW, respectively.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122087460","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}
Myungwoo Oh, Chaeeun Lee, Sanghun Lee, Youngho Seo, Sunwoo Kim, Jooho Wang, C. Park
{"title":"Convolutional Neural Network Accelerator with Reconfigurable Dataflow","authors":"Myungwoo Oh, Chaeeun Lee, Sanghun Lee, Youngho Seo, Sunwoo Kim, Jooho Wang, C. Park","doi":"10.1109/ISOCC.2018.8649988","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649988","url":null,"abstract":"Convolutional-Neural-Network (CNN) is used in broad applications. There are dataflows for convolutional layers in CNN such as row-stationary and weight-stationary. However, these dataflows have strengths and weaknesses. This paper analyzed two representative dataflows and introduce the dataflow-reconfigurable CNN accelerator that takes advantage of both dataflows.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114853712","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 3D Inductors for IoT Security","authors":"Bruce C. Kim, Sang-Bock Cho","doi":"10.1109/ISOCC.2018.8649908","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649908","url":null,"abstract":"This paper describes the design of through-silicon via (TSV)-based inductors for security of Internet-of-Things (IoT). We designed 3D inductors with security hardware using physically unclonable function (PUF) circuit. The secure 3D inductor could be tuned to desirable frequency by using MEMS switches.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130154476","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":"Energy Efficient Analog Synapse/Neuron Circuit for Binarized Neural Networks","authors":"Jaehyun Kim, Chaeun Lee, Kiyoung Choi","doi":"10.1109/ISOCC.2018.8649929","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649929","url":null,"abstract":"Energy efficiency is one of the most important factors to make deep neural networks viable in embedded systems. In this paper, we propose an analog synapse circuit using resistive random access memory (ReRAM) which operates with a switched capacitor neuron for binarized neural networks (BNNs). Thanks to the compact and energy efficient ReRAM synapses, the circuit simulation results of an MLP implemented with the proposed synapse and neuron circuits show 2.5ns classification latency and very high energy efficiency of 1536TOPS/W on 32nm technology.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131647342","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":"Reconfigurable Multi-Input Adder Design for Deep Neural Network Accelerators","authors":"Hossein Moradian, Sujeong Jo, Kiyoung Choi","doi":"10.1109/ISOCC.2018.8649943","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649943","url":null,"abstract":"This paper proposes two efficient designs of reconfigurable multi-input adders for deep neural network accelerators. The reconfigurability allows us to use resources in different ways optimized to different applications. The designed adders enable bit-width adaptive computing in neural network layers, which improves computing throughput. The proposed designs are implemented with 45nm CMOS TSMC library and the results show that the proposed modules achieve throughput much higher than that of conventional designs even with the reconfigurability without significant hardware overhead.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131000804","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":"Multi-Mode LSTM Network for Energy-Efficient Speech Recognition","authors":"Junseo Jo, Seokha Hwang, Sunggu Lee, Youngjoo Lee","doi":"10.1109/ISOCC.2018.8649913","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649913","url":null,"abstract":"We newly introduce a novel processing scenario of long short-term memory (LSTM) network for the energy-efficient speech recognition. Compared to the conventional single-mode processing based on the fixed computing scheme, the proposed LSTM processing contains multiple operating cells providing attractive tradeoff between the recognition accuracy and the energy consumption. For the case study, the state-of-the-art LSTM network is modified to have two types of processing cells, strong and weak cells, which are dedicated to the accuracy-aware and energy-aware LSTM sequences, respectively. By allocating as many weak cells with low energy as possible, experimental results show that the proposed work saves the energy consumption for speech recognition by 75% compared to the original network.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115701286","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":"The Hardware Acceleration of SC Decoder for Polar Code towards HLS Optimization","authors":"Yujie Huang, Yujie Cai, Ming-e Jing, Jun Han, Yibo Fan, Xiaoyang Zeng","doi":"10.1109/ISOCC.2018.8649940","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649940","url":null,"abstract":"With the extensive use of hardware acceleration for complex algorithms, fast hardware implementations of those algorithms with HLS become necessary. However, high performance hardware generated with HLS needs numerous skills and the successive-cancellation (SC) decoding algorithm for polar code, which is widely used in 5G era, can’t be converted from c code to verilog code with HLS directly because of the recursion in it. In this paper, we firstly find out the operation laws of SC decoding algorithm; secondly, we expand the recursion in the SC decoding algorithm according to the laws; thirdly, we convert float point data to fixed point which reduces LUT resources by 63.5% and simplify the function consisting of exponential and logarithm operation through Taylor Expansion to reduce hardware resource and accelerate the hardware; finally, we apply pipeline in for loop which reduces cycles by 29% and call on-chip RAM in HLS to quickly generate high performance SC decoder which consumes low hardware resources.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114435416","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}
Hui-Dong Lee, Sunwoo Kong, Bonghyuk Park, Kwangchun Lee, Jeongsoo Park, Jeong‐Geun Kim
{"title":"A 28-GHz 28.5-dBm power amplifier using 0.15-µm InGaAs E-mode pHEMT technology","authors":"Hui-Dong Lee, Sunwoo Kong, Bonghyuk Park, Kwangchun Lee, Jeongsoo Park, Jeong‐Geun Kim","doi":"10.1109/ISOCC.2018.8649905","DOIUrl":"https://doi.org/10.1109/ISOCC.2018.8649905","url":null,"abstract":"This paper describes the design of a 28-GHz 28.5-dBm power amplifier using a 0.15-µm InGaAs E-mode pHEMT technology. We have sought a method to obtain the required output power through the characteristics of the unit transistor provided by the manufacturer. For this purpose, the PA circuit is configured to effectively combine the output signals of eight unit transistors. As a result of the verification, 28.5-dBm output was obtained at 28-GHz and the maximum efficiency was more than 24.5%. The power amplifier draws 335 mA under a 6.4 V supply at 28.5-dBm output.","PeriodicalId":127156,"journal":{"name":"2018 International SoC Design Conference (ISOCC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822974","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}