2018 29th Irish Signals and Systems Conference (ISSC)最新文献

{"title":"N-way Digitally Driven Doherty Power Amplifier Design and Analysis for Ku band Applications","authors":"S. Madhuwantha, Prasidh Ramabadran, R. Farrell, J. Dooley","doi":"10.1109/ISSC.2018.8585370","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585370","url":null,"abstract":"With an increasing interest in backwards compatibility for existing satellites and the emerging satellite markets, wireless transceivers at Ku band are increasing in popularity. This paper presents the design of a four-way digitally driven Doherty amplifier, aimed at applications in Ku-band. Single tone measurements indicate a maximum drain efficiency of 53.4% at a maximum of 19.2 dBm output power. The final output power can readily be adjusted by changing the biasing in each stage accordingly. The N-way Doherty power amplifier was tested with an 800 MHz bandwidth, 64 QAM test signal aimed for future communication signal standards. An analysis of this configuration has also been performed for 2-way, 3-way and 4-way architectures.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115782731","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 Performance Comparison of the PRESENT Lightweight Cryptography Algorithm on Different Hardware Platforms","authors":"Daniel Irwin, Pengcheng Liu, S. Chaudhry, M. Collier, Xiaojun Wang","doi":"10.1109/ISSC.2018.8585341","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585341","url":null,"abstract":"For decades the security of information during its transportation from one location to another has been held with great importance. The technology of cryptography has been used for applications such as banking, transport of classified information and even to transfer detailed instructions to the front lines of the battlefield in times of war. As technology moves forward and semiconductor devices miniaturise in accordance with Moores law electronic devices are becoming faster, smaller and cheaper. These devices are constantly increasing in what they are capable of doing. Small scale devices such are RFID tag and contact-less credit cards require the information stored on the device be kept secure. The technology of lightweight cryptography has been utilised in these devices to provide a fast lightweight solution to keeping information secure. This paper looks at the PRESENT cipher, which is a lightweight block cipher designed to be easily implemented in hardware. This paper looks at the different implementations of the PRESENT algorithm in both hardware and software, and compare its performance on different platforms.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125724888","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":"ICCapt: Online design capture and HDL generation, with PYNQ SoC prototyping in the cloud","authors":"Aidan Boyd, F. Callaly, Dáire Canavan, Declan O’Loughlin, Jeremy Audiger, Yohan Boyer, Niall Timlin-Canning, Arthur Vianès, Clement Da-Costa, F. Morgan, L. Bakó, Szabolcs Hajdú","doi":"10.1109/ISSC.2018.8585366","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585366","url":null,"abstract":"For students of digital logic design and applications, prototyping of FPGA/SoC digital logic hardware requires knowledge of design principles, hardware description language (HDL) modelling and testbenching, and Electronic Design Automation tools. There is limited availability of locally-installed (or in-house) tools which offer high level wizard-based parameterisable graphical digital logic design capture, with auto-generation of HDL. This paper presents ICCapt, a browser-based parameterisable graphical digital logic design capture wizard. ICCapt enables fast design capture, with auto-generation of synthesisable HDL models. ICCapt integrates with the viciLab cloud FPGA/SoC hardware prototyping and client application console creation toolsuite. Students can build hardware prototypes in the cloud, and visually interact with remote hardware in real time, using their ICCapt-generated block diagrams in the client console. ICCapt helps students to better understand the hierarchical structure of digital logic design and HDLs. The paper presents a series of design-to-prototype examples, and describes the ICCapt web tool architecture and its functions.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128128538","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":"Rail Track Modelling by Using Identification and Curve Fitting Techniques","authors":"S. Türkay, A. S. Leblebici, H. Akçay","doi":"10.1109/ISSC.2018.8585288","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585288","url":null,"abstract":"In this paper, a seventeen-degree-of-freedom full-car model of a high speed railway vehicle excited by real track profile is going to be studied. The field measurements are collected by Turkish State Railways (TCDD) on a pre-specified pilot section at a constant forward train speed. First, empirical auto-power spectral densities of the left and the right tracks are estimated on the uniform frequency range by using the Welch-method. The estimated power spectra is matched by generally preferred mathematical track spectrum in the Federal Railroad Administration Standard (FRA). Then, curve fitting techniques in the frequency domain as the two-slope and three-slope approximations are performed on the Welch estimated track spectra. Next, subspace-based identification algorithms are applied to shape to the Welch’s rail spectrum for the right and left tracks. Based on all these parametric and non-parametric studies, the simulation studies showed that the effect of the rail track modelling on the performance enhancement of the vehicle is quite large.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131937017","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 Symmetry Properties of Intrinsic Interference in FBMC-OQAM Systems","authors":"Vibhutesh Kumar Singh, M. Flanagan, B. Cardiff","doi":"10.1109/ISSC.2018.8585379","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585379","url":null,"abstract":"Filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) is a modulation technique which is widely considered as a strong contender to replace cyclic prefixed orthogonal frequency division multiplexing (CP-OFDM), for the future 5th generation (5G) of mobile wireless communication networks. FBMC-OQAM exhibits good spectral confinement properties, high spectral efficiency and immunity to synchronization errors, mainly due to its prototype filter’s localization properties. But these desirable traits come with the loss of orthogonality, rendering it only orthogonal for real symbols with imaginary interference appearing in both the frequency and time domains. In this work, we prove a set of symmetry properties of this interference for a general class of FMBC-OQAM systems, and use these relationships to derive autocorrelation matrices for interference from neighboring symbols and also for noise contributions. These matrices find application in receiver design and also in channel estimation. The derived symmetry properties are also demonstrated through numerical examples for various standard prototype filter designs.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116758217","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":"Bayesi-Chain: Intelligent Identity Authentication","authors":"Juanita Blue, J. Condell, T. Lunney, Eoghan Furey","doi":"10.1109/ISSC.2018.8585369","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585369","url":null,"abstract":"In a bid to stamp out fraudulent crime, there is increased pressure on individuals to provide evidence that they possess a ‘real’ identity. Counterfeiting and fake identities have reduced confidence in traditional paper documentation as proof of identity, this has created a demand for an intelligent digital alternative. Recent government implementations and identity trends have also improved the popularity of digital forms of identification.Authentication of identity is a salient issue in the current climate where identity theft through record duplication is on the rise. Identity resolution techniques have proven effective in filtering duplicated and fake records in identity management systems. These techniques have been further improved by the implementation of machine learning techniques which are capable of revealing patterns and links that have formerly gone undetected. Research has also suggested that incorporating non-standard attributes in the form of social contextual data can increase the efficiency and success-rate of these fraud detection methods.In the digital age where individuals are creating large digital footprints, online accounts and activities can prove to be a valuable source of information that may contribute to ‘proof’ that an asserted identity is genuine. Online social contextual data – or ‘Digital identities’ -- pertaining to real people are built over time and bolstered by associated accounts, relationships and attributes. This data is difficult to fake and therefore may have the capacity to provide proof of a ‘real’ identity.This paper outlines the design and initial development of a solution that utilizes data sourced from an individual’s digital footprint to assess the likelihood that it pertains to a ‘real’ identity. This is achieved through application of machine learning and Bayesian probabilistic modelling techniques. Where identity sources are considered reliable, a secure and intelligent digital identification artefact will be created. This artefact will emulate a blockchain-inspired ledger and may subsequently be used to prove identity in place of traditional paper documentation.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129260287","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":"Visual Servo Control of a Micro Quad-copter as a Teaching Platform for Engineering","authors":"Rodrigo Pessoa, William S. Barbosa, J. McLoughlin, A. Kokaram","doi":"10.1109/ISSC.2018.8585355","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585355","url":null,"abstract":"This paper presents a platform for controlling a micro quad-copter using a single visual sensor fixed to the ground. The aim is for this to be a teaching platform with academic and research applications, that combines dynamic real-time control with image segmentation and servoing. A mathematical model based on the Newton-Euler formulation is presented for the quad-copters dynamics. Three different image segmentation algorithms are presented and discussed. A simulator is implemented using MATLABs Simulink environment and a linear quadratic regulator with integral gain (LQR-I) controller is presented as means of controlling a linearized version of the system.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134005465","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":"Resistance-based Calibration of a Double Bias Elimination Resistance Measurement Circuit : Calibration for highly accurate measurements over narrow ranges of interest","authors":"Ciaran Doyle, D. Riordan, Dr Joseph Walsh","doi":"10.1109/ISSC.2018.8585294","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585294","url":null,"abstract":"Measurement bias elimination and ratiometric measurement are techniques in instrumentation which can improve measurement precision. A measurement circuit in which bias was eliminated for the analogue-to-digital conversion of the voltage across the device under test has previously been developed, but it did not eliminate bias for the conversion of the voltage across the ratiometric reference resistor. A modified, double bias elimination circuit has also been previously proposed, which adds elimination of bias for the reference resistor. This circuit would be most useful in specialized investigations of, for example, the behavior of materials over narrow temperature ranges. Here, we describe the circuit’s operation in detail, and propose a cost- effective calibration method to maximize the benefits of the design, based on the high precision and stability of readily- available, low-cost resistors.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134268867","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":"Getting Prepared for the Next Botnet Attack : Detecting Algorithmically Generated Domains in Botnet Command and Control","authors":"Tim Kelley, Eoghan Furey","doi":"10.1109/ISSC.2018.8585344","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585344","url":null,"abstract":"This paper highlights the high noise to signal ratio that DNS traffic poses to network defense’ incident detection and response, and the broader topic of the critical time component required from intrusion detection for actionable security intelligence. Nowhere is this truer than in the monitoring and interception of malware command and control communications hidden amongst benign DNS internet traffic. Global ransomware and malware families were responsible for over 5 billion USD in losses. In 4 days Reaper, a Mirai variant, infected 2.7m nodes. The scale of malware infections outstrips information security blacklisting ability to keep pace. Machine learning techniques, such as CLIP, provide the ability to detect malware traffic to malicious command and control domains with high reliability using lexical properties and semantic patterns in algorithmically generated domain names.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130017857","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 influence of flickering patterns on the quality of brain signals for Brain-Computer Interface","authors":"A. Szalowski, D. Picovici","doi":"10.1109/ISSC.2018.8585359","DOIUrl":"https://doi.org/10.1109/ISSC.2018.8585359","url":null,"abstract":"This paper investigates brain’s response to visual stimulation using ten different flickering patterns, which were designed and tested at 10 Hz oscillation in multiple trials using white light only. The tests were carried out in a normal office environment. The resulting brainwaves were compared by looking at the fundamental 10 Hz peak levels, noise floor and harmonic artifacts. The tests proved that there is a fundamental relationship between flicker patterns and the brain signals they elicit.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125985436","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}