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FAPNN: An FPGA based Approximate Probabilistic Neural Network Library 基于FPGA的近似概率神经网络库
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/COCONET.2018.8476889
Kizheppatt Vipin, Y. Akhmetov, Serikbolsyn Myrzakhme, A. P. James
{"title":"FAPNN: An FPGA based Approximate Probabilistic Neural Network Library","authors":"Kizheppatt Vipin, Y. Akhmetov, Serikbolsyn Myrzakhme, A. P. James","doi":"10.1109/COCONET.2018.8476889","DOIUrl":"https://doi.org/10.1109/COCONET.2018.8476889","url":null,"abstract":"Due to their flexible architecture and inherent parallelism, FPGAs are ideal candidates for neural network implementations. Still they have not achieved wide-spread acceptance in this regard. One of the major roadblocks for FPGAs is the implementation of complex mathematical functions encountered in neural networks. Exact implementation of these functions consume large number of resources. In this paper we discuss an FPGA-based neural network prototyping platform and the approximate implementation of a probabilistic neural network (PNN) on a Xilinx 7-Series FPGA. The complex mathematical functions as replaced by approximations. Analysis shows that hardware performance is much higher than that of software counter parts and the error induced due to approximations is within tolerable limit.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"61 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127388556","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}
引用次数: 1
Multiuser MIMO for Underwater Visible Light Communication 水下可见光通信的多用户MIMO
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/COCONET.2018.8476887
A. Amantayeva, Moldir Yerzhanova, Refik Caglar Kizilirmak
{"title":"Multiuser MIMO for Underwater Visible Light Communication","authors":"A. Amantayeva, Moldir Yerzhanova, Refik Caglar Kizilirmak","doi":"10.1109/COCONET.2018.8476887","DOIUrl":"https://doi.org/10.1109/COCONET.2018.8476887","url":null,"abstract":"Underwater visible light communication (UVLC) is a newly emerging technique in the field of wireless communication. Numerous studies indicated that it can achieve high data rate (on the order of Gbps) over tens of meters of communication link. Multiuser multiple-input multiple-output (MU-MIMO) systems have a potential to provide high capacity, interference suppression and space division multiple access. In this paper the performance of an orthogonal frequency division multiplexing (OFDM)-based MU-MIMO system for underwater visible light communication (VLC) is investigated. It is worth to note that MU-MIMO OFDM has been applied for indoor optical communication, however, to the best of our knowledge, it has not been studied for underwater environment yet. The system is considered to be $2mathrm {x}2$ and the channel gain for each path is calculated with the closed-form expression for weighted double gamma function (WDGF). Zero-forcing precoding scheme is implemented to eliminate multiuser interference.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132649815","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}
引用次数: 10
Instrumentation Amplifier Design: Comparison of CMOS-Memristive and CMOS Implementations 仪表放大器设计:CMOS忆阻和CMOS实现的比较
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/coconet.2018.8476892
Ulzhan Bassembek, O. Krestinskaya
{"title":"Instrumentation Amplifier Design: Comparison of CMOS-Memristive and CMOS Implementations","authors":"Ulzhan Bassembek, O. Krestinskaya","doi":"10.1109/coconet.2018.8476892","DOIUrl":"https://doi.org/10.1109/coconet.2018.8476892","url":null,"abstract":"Abstract-Instrumentation Amplifier (InAmp) is an electronic device used in many applications for testing and accuracy measurements. However, the drawbacks of InAmp include limited operation gain range, large on-chip area and high power consumption. In this paper, the results of replacing CMOS transistors and resistors with memristive devices in InAmp design are investigated. The preliminary simulation results show that the application of memristors in CMOS InAmp design has led to the reduction of on-chip area and power consumption, comparing to the original CMOS InAmp design. The simulations are performed using ideal long-channel CMOS transistor model to prove the design concept. We demonstrate the possibility to improve InAmp gain using memristive devices in the design. Furthermore, variability analysis and InAmp performance with respect to the temperature variation is provided, demonstrating the improvement of InAmp operation in a large temperature range. In addition, the noise sensitivity analysis is performed, showing that the output noise is significantly decreased comparing to the original CMOS design.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124291613","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}
引用次数: 1
Dual-Mode OFDM with Coded Direct Index Modulation for the Spectrum Efficiency Improvement 采用编码直接索引调制的双模OFDM提高频谱效率
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/COCONET.2018.8476906
Changyoung An, H. Ryu
{"title":"Dual-Mode OFDM with Coded Direct Index Modulation for the Spectrum Efficiency Improvement","authors":"Changyoung An, H. Ryu","doi":"10.1109/COCONET.2018.8476906","DOIUrl":"https://doi.org/10.1109/COCONET.2018.8476906","url":null,"abstract":"In this paper, we propose an orthogonal frequency division multiplexing with coded direct index modulation (OFDM-CDIM) system to improve transmission efficiency and performance and evaluate the performance of this system. OFDM with index modulation (OFDM-IM) transmits additional information using combination information for determining the position of the used subcarriers, and provides a trade-off control function between performance and transmission efficiency. However, as OFDM-IM uses combinatorial operations, the amount of computation to be processed in transmission and reception increases as the number of subcarriers increases. In this paper, we propose a method to directly map data to indexes of subcarriers to solve this problem. In order to improve performance and transmission efficiency, we only encode data mapped to indexes of subcarriers. Simulation results show that the proposed system using dual-mode (DM) can improve bit error rate (BER) performance and transmission efficiency compared to conventional OFDM system in multipath fading channel environment.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123193988","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}
引用次数: 2
Clustering of low-correlated spatial gene expression patterns in the mouse brain in the Allen Brain Atlas Allen脑图谱中小鼠大脑低相关空间基因表达模式的聚类
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/COCONET.2018.8476886
Paolo Rosati, C. Lupascu, D. Tegolo
{"title":"Clustering of low-correlated spatial gene expression patterns in the mouse brain in the Allen Brain Atlas","authors":"Paolo Rosati, C. Lupascu, D. Tegolo","doi":"10.1109/COCONET.2018.8476886","DOIUrl":"https://doi.org/10.1109/COCONET.2018.8476886","url":null,"abstract":"In this paper, clustering techniques are applied to spatial gene expression patterns with a low genomic correlation between the sagittal and coronal projections. The data analysed here are hosted on an available public DB named ABA (Allen Brain Atlas). The results are compared to those obtained by Bohland et al. on the complementary dataset (high correlation values). We prove that, by analysing a reduced dataset,hence reducing the computational burden, we get the same accuracy in highlighting different neuroanatomical region.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128429298","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}
引用次数: 1
Design And Analysis Of CMOS-Memristive Cascode Current Mirror cmos记忆级联电流镜的设计与分析
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/coconet.2018.8476891
Botazhan Satuyeva, O. Krestinskaya
{"title":"Design And Analysis Of CMOS-Memristive Cascode Current Mirror","authors":"Botazhan Satuyeva, O. Krestinskaya","doi":"10.1109/coconet.2018.8476891","DOIUrl":"https://doi.org/10.1109/coconet.2018.8476891","url":null,"abstract":"Current mirror is one of the most widely used component in analog circuit design. There are different current mirror configurations, where main challenge is to find the trade off between the linearity and accuracy of the performance and the number of required CMOS transistors for the design to improve on-chip area, power consumption, leakage currents and unstable behavior under different conditions. In this paper, the application of memristive devices in cascode current mirror is presented. Simulation results of CMOS-memristive current mirror show the improvements in power consumption and on-chip area, comparing to the conventional design. In addition, total harmonic distortion analysis as well as current transfer characteristics of the proposed circuit is presented.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132032652","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}
引用次数: 2
Empirical Device Scaling and RF Performance Perspective: A Small Signal Model for GaN High Electron Mobility Transistor 经验器件缩放和射频性能展望:GaN高电子迁移率晶体管的小信号模型
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/COCONET.2018.8476895
A. Khusro, M. Hashmi, A. Q. Ansari
{"title":"Empirical Device Scaling and RF Performance Perspective: A Small Signal Model for GaN High Electron Mobility Transistor","authors":"A. Khusro, M. Hashmi, A. Q. Ansari","doi":"10.1109/COCONET.2018.8476895","DOIUrl":"https://doi.org/10.1109/COCONET.2018.8476895","url":null,"abstract":"The paper proposes scaling effect of number of fingers (N) and effective gate width (weff) on model parameters and subsequently investigate the effect on RF performance characteristics of GaN High electron mobility transistor(HEMT). The device scaling relations in terms of model parameters and RF performance metrics are proposed for two multi-finger HEMTs of $2times200 mu m$ and $4times00 mu m$ respectively. The unity gain current frequency $(f_{t})$ is found to be approximately constant with very negligible increase while maximum unilateral gain frequency $(f_{max})$ increases with increase in number of fingers (N) provided that effective gate width (weff) remain constant. The whole investigation is based on accuracy of the parameter extraction procedure and small signal model developed using pinch-off and de-embedding structures. However, the effective width of both the HEMTs is equal.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"89 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134282837","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}
引用次数: 2
Meeting Deadlines in Datacenter Networks: An Analysis on Deadline-Aware Transport Layer Protocols 在数据中心网络中满足期限:对期限感知传输层协议的分析
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/COCONET.2018.8476888
Ayan Shymyrbay, Arshyn Zhanbolatov, Assilkhan Amankhan, A. Bakambekova, Ikechi Augustine Ukaegbu
{"title":"Meeting Deadlines in Datacenter Networks: An Analysis on Deadline-Aware Transport Layer Protocols","authors":"Ayan Shymyrbay, Arshyn Zhanbolatov, Assilkhan Amankhan, A. Bakambekova, Ikechi Augustine Ukaegbu","doi":"10.1109/COCONET.2018.8476888","DOIUrl":"https://doi.org/10.1109/COCONET.2018.8476888","url":null,"abstract":"Data centers had come to the scene as an effective framework for running a huge range of real-time and cloud applications. When TCP is deployed in a broad data center environment, it fails to maintain high throughput and deadline guarantees, mainly due to the unfair sharing and flow quenching. Several transport layer designs have been proposed over the last few years: some of them were claimed to outperform the currently used ones. This paper provides an analysis of some of the transport-layer protocols, namely D3 Deadline Driven Delivery), PDQ (Preemptive Distributed Quick), D2 TCP (Deadline-aware Data Center TCP), DCTCP (Data Center TCP) and MCP (Multiflow Conversation Protocol). The analysis includes the evaluation of their design implementation, performance and problems. The FCFS mechanisms at the heart of the D3 forces the protocol to be tied to the arrival order of the flows, which leads to the priority inversion issue resulting in flows unjustifiably missing their deadlines. The PDQ protocol has been described as a mechanism for a flow urgency regulation which emulates the EDF behavior. While PDQ has improved upon D3, it was pointed out that the management of priority lists and per-flow states in this line of protocols puts a great burden on the network core, thus restricting the efficient router’s bandwidth. Motivated by DTCP, D2 TCP and MCP utilize congestion window modeling at the end hosts to handle the deadline flows ensuring network stability and deadline meeting guarantees. Also, deployability problem is likely to be solved by recent advances of SDN introducing a centralized control over networks.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115402254","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}
引用次数: 3
Current Sense Amplifier Design with CMOS-Memristive Circuits 基于cmos记忆电路的电流感测放大器设计
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/coconet.2018.8476900
Yerlan Amanzholov, O. Krestinskaya
{"title":"Current Sense Amplifier Design with CMOS-Memristive Circuits","authors":"Yerlan Amanzholov, O. Krestinskaya","doi":"10.1109/coconet.2018.8476900","DOIUrl":"https://doi.org/10.1109/coconet.2018.8476900","url":null,"abstract":"In recent years, the increase of processing speed requirements led to the demand to increase speed and reduce power consumption of memory devices, where sense amplifier is one of the most important components. This work provides the design idea and preliminary results of CMOS-memristive sense amplifier. The main objective of the paper is to modify $180 nm$ CMOS sense amplifier design by using memristive devices and improve the design in terms of on-chip area, power efficiency, temperature variation and speed. In the proposed design, NOT gates in the circuit were designed with memristors. The main aim of the paper is to check the effect of memristors on sense amplifier performance. The power consumption, on-chip area reduction, sensing delay and offset are reported in the paper.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114075044","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}
引用次数: 0
Memristor-based Optimum Legendre Low-Pass Filter 基于忆阻器的最佳勒让德低通滤波器
2018 International Conference on Computing and Network Communications (CoCoNet) Pub Date : 2018-08-01 DOI: 10.1109/coconet.2018.8476904
Zhazira Zhumabay, I. Dolzhikova
{"title":"Memristor-based Optimum Legendre Low-Pass Filter","authors":"Zhazira Zhumabay, I. Dolzhikova","doi":"10.1109/coconet.2018.8476904","DOIUrl":"https://doi.org/10.1109/coconet.2018.8476904","url":null,"abstract":"The paper suggests enhanced versions of an Optimum Legendre (L) low-pass filter obtained by adding memristive devices to the original circuit. The main aim is to observe the effects of connecting memristors of MS model to the passive components of Legendre filter. The results have been obtained by making simulations in LTspice software, which provide the information about magnitude frequency response, group delay and phase of the original and proposed models. One of memristive models has been implemented by connecting three memristors to the last three elements of a five-pole L filter. The second proposed model was constructed by inserting memristors after second and fifth components of the original circuit. Consequently, the ripple factor has been reduced and group delay variation has been narrowed. Also cutoff has been sharpened, phase response and transition have become smoother. These outcomes demonstrate that memristors introduced significant enhancement to the Optimum Legendre Low-Pass Filter and can find its applicability in analog and microwave circuit design.","PeriodicalId":250788,"journal":{"name":"2018 International Conference on Computing and Network Communications (CoCoNet)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114725561","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}
引用次数: 0
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