A Practical Realization Of A Return Map Immune Lorenz Based Chaotic Stream Cipher In Circuitry, 2017 University of Tennessee, Knoxville
A Practical Realization Of A Return Map Immune Lorenz Based Chaotic Stream Cipher In Circuitry, Daniel Robert Brown
Some chaotic systems are advantageously capable of self-synchronizing with a like system through a single shared state. Using a plain text binary message, a single system parameter can be modulated to mask this message and transmit it securely through the single shared state. The most simple implementations of this encryption technique are, however, vulnerable to the return map attack. Using a time-scaling factor to further obfuscate the modulation process, a return map attack immunity is gained. We report on the progress towards a realization of this process in real-time analog circuitry using o-the-shelf components.
Low-Resolution Adc Receiver Design, Mimo Interference Cancellation Prototyping, And Phy Secrecy Analysis., 2017 University of Louisville
Low-Resolution Adc Receiver Design, Mimo Interference Cancellation Prototyping, And Phy Secrecy Analysis., Chen Cao
Electronic Theses and Dissertations
This dissertation studies three independent research topics in the general field of wireless communications. The first topic focuses on new receiver design with low-resolution analog-to-digital converters (ADC). In future massive multiple-input-multiple-output (MIMO) systems, multiple high-speed high-resolution ADCs will become a bottleneck for practical applications because of the hardware complexity and power consumption. One solution to this problem is to adopt low-cost low-precision ADCs instead. In Chapter II, MU-MIMO-OFDM systems only equipped with low-precision ADCs are considered. A new turbo receiver structure is proposed to improve the overall system performance. Meanwhile, ultra-low-cost communication devices can enable massive deployment of disposable wireless ...
5g-Ucda Multi Antenna-To-Logical Cell Circular Fifo Mapping Strategy For High-Speed Train Wireless Communications, 2017 University of Nebraska-Lincoln
5g-Ucda Multi Antenna-To-Logical Cell Circular Fifo Mapping Strategy For High-Speed Train Wireless Communications, Subharthi Banerjee
Theses, Dissertations, and Student Research from Electrical & Computer Engineering
2020 is the target year for the roll out of fifth generation wireless communication methodologies. The commercial vendors have characterized 5G as a collection of disruptive set of technologies to provide high throughput, low latency communication supporting a variety of services, i.e., machine to machine communication to next generation base stations and vehicle-to-vehicle communication to radio-over-fiber and high mobility channels. High-speed train wireless communication channels as a subset of high mobility channels have their clear advantages and disadvantages considering other vehicular channels. The speed of high-speed trains is going to reach 500km/hr and with Hyperloop it may reach ...
Fast Algorithms For Recommender Systems, 2017 Iowa State University
Fast Algorithms For Recommender Systems, Souparni Agnihotri
Symposium on Undergraduate Research and Creative Expression
Recommender systems are information filtering systems that deal with the problem of information overload by filtering vital information from a large amount of data retrieved based on user preferences, interests or observed behavior about an item. The challenge is to come up with a fast and efficient algorithm that predicts user preferences on unseen items using a combination of content-based filtering (leveraging metadata about the users/items) and collaborative filtering (leveraging other user ratings). The algorithm uses a parallel computing framework called GPUFish to solve very large scale matrix completion problems. It addresses the main issue of predicting future ratings ...
Software To Simulate Genomic Selection, 2017 Iowa State University
Software To Simulate Genomic Selection, Takao Shibamoto
Symposium on Undergraduate Research and Creative Expression
We studied the effects of Activator (Ac) transposon (a chromosomal segment that can undergo transposition) in the development of twin sectors on maize ears containing the allele P1-ovov454. This allele conditions orange-variegated pericarp and cob due to the presence of the Ac transposon in the p1 gene which controls kernel pericarp color. We screened for ears with multi-kernel dark red/orange sectors twinned with sectors of colorless pericarp. From this visual screen, we identified 6 different twin sectors on two maize ears. A series of screening PCR tests were developed to classify the type of structural changes present in each ...
Java Server Reliability In The Presence Of Failures, 2017 Marquette University
Java Server Reliability In The Presence Of Failures, Rich Coe
Master's Theses (2009 -)
A design for the separation of a server interface and work processing. Numerous sources, Tanenbaum (Tanenbaum Modern Operating Systems, 493), Goscinski (Goscinski Distributed operating systems, 203), and Birman (Birman Reliable distributed systems, 265), all discuss the concept of Two-Phase Commit, where a coordinator directs one or more processes to perform a transaction. If the transaction or any of the processes fail, the coordinator can decide how to proceed by either retrying or aborting the request. The popular web browser Chrome utilizes a separate process for each tab displayed. Should the rendering and display of a web page cause a crash ...
Development Of A Remotely Accessible Wireless Testbed For Performance Evaluation Of Ami Related Protocols, 2017 Florida International University
Development Of A Remotely Accessible Wireless Testbed For Performance Evaluation Of Ami Related Protocols, Utku Ozgur
FIU Electronic Theses and Dissertations
Although smart meters are deployed in many countries, the data collection process from smart meters in Smart Grid (SG) still has some challenges related to consumer privacy that needs to be addressed. Referred to as Advanced Metering Infrastructure (AMI), the data collected and transmitted through the AMI can leak sensitive information about the consumers if it is sent as a plaintext.
While many solutions have been proposed in the past, the deployment of these solutions in real-life was not possible since the actual AMIs were not accessible to researchers. Therefore, a lot of solutions relied on simulations which may not ...
Thermal Evolution Of Moon, 2017 California Polytechnic State University, San Luis Obispo
Thermal Evolution Of Moon, Arshdeep Singh Gill
Master's Theses and Project Reports
In August, 2014 three experiments were conducted using infrared systems deployed at White Mountain Research center, CA. The data was acquired for the whole month of August. Teams of 3-4 students from Cal Poly San Luis Obispo and UC Santa Barbara were stationed at the research center for 2-3 days to operate the equipment. The three experiments were:(1) creating spatial-temporal time series of lunar surface temperatures;(2) identifying atmospheric meteor trails;(3) search for meteor impacts on the Moon surface. Out of the three this thesis focusses on experiment 1 and the results from this experiment could also help ...
Uhf Rfid Antenna Impedance Matching Techniques, 2017 California Polytechnic State University, San Luis Obispo
Uhf Rfid Antenna Impedance Matching Techniques, Kamron Sockolov
Master's Theses and Project Reports
Radio Frequency Identification (RFID) systems use electromagnetic signals to wirelessly identify and track RFID-tagged objects. A reader transmits a carrier wave request signal to an RFID tag, which then transmits a unique identification signal back to the reader. Applications include supply chain inventory management, automated toll booth fee systems, sports event timing, restricted access control, pet monitoring and retail theft prevention. An RFID tag includes an antenna connected to a Radio Frequency Integrated Circuit (RFIC). RFID tags in the ultra-high frequency (UHF), industrial, scientific and medical (ISM) 902-928MHz band and global Electronic Product Code (EPC) 860‑960MHz band are powered ...
Cascading Blackout Overall Structure And Some Implications For Sampling And Mitigation, 2017 Iowa State University
Cascading Blackout Overall Structure And Some Implications For Sampling And Mitigation, Ian Dobson, David E. Newman
Electrical and Computer Engineering Publications
Cascading blackouts can be thought of as initiating events followed by propagating events that progressively weaken the power system. We briefly discuss the implications for assessing cascading risk by proper sampling from the various sources of uncertainty and for mitigating cascading risk by reducing both the initiating events and their propagation.
Zinc Finger Database (Zifdb): A Repository For Information On C2h2 Zinc Fingers And Engineered Zinc-Finger Arrays, Fengli Fu, Jeffry D. Sander, Morgan Maeder, Stacey Thibodeau-Beganny, J. Keith Joung, Drena L. Dobbs, Leslie Miller, Daniel F. Voytas
Zinc fingers are the most abundant DNA-binding motifs encoded by eukaryotic genomes and one of the best understood DNA-recognition domains. Each zinc finger typically binds a 3-nt target sequence, and it is possible to engineer zinc-finger arrays (ZFAs) that recognize extended DNA sequences by linking together individual zinc fingers. Engineered zinc-finger proteins have proven to be valuable tools for gene regulation and genome modification because they target specific sites in a genome. Here we describe ZiFDB (Zinc Finger Database;http://bindr.gdcb.iastate.edu/ZiFDB), a web-accessible resource that compiles information on individual zinc fingers and engineered ZFAs. To enhance ...
Numerical Simulation And Experimental Validation Of A Large-Area Capacitive Strain Sensor For Fatigue Crack Monitoring, Xiangxiong Kong, Jian Li, Caroline Bennett, William Colins, Simon Laflamme
A large-area electronics in the form of a soft elastomeric capacitor (SEC) has shown great promise as a strain sensor for fatigue crack monitoring in steel structures. The SEC sensors are inexpensive, easy to fabricate, highly stretchable, and mechanically robust. It is a highly scalable technology, capable of monitoring deformations on mesoscale systems. Preliminary experiments verified the SEC sensor’s capability in detecting, localizing, and monitoring crack growth in a compact specimen. Here, a numerical simulation method is proposed to simulate accurately the sensor’s performance under fatigue cracks. Such a method would provide a direct link between the SEC ...
Indoor Mapping Drone, 2017 The University of Akron
Indoor Mapping Drone, Benjamin J. Plevny, Andrew Armstrong, Miguel Lopez, Davidson Okpara
Honors Research Projects
This project addresses the need for an autonomous indoor mapping system that will create a 3D map of an unknown physical environment in real time. The aerial system moves and avoids obstacles autonomously, without the need for human remote control or observation. An aerial system produces a map of an unknown indoor environment by transmitting data received from the aerial device’s sensors. The transmission occurs over a wireless channel from the aerial device to a remote server for processing and storage of the data. As the transmission is done in real time, the aerial system does not require hardware ...
System For Workout Information Management, 2017 The University of Akron
System For Workout Information Management, Mark Archual, Ethan E. Schweinsberg
Honors Research Projects
Power racks are a weight machine used by swimmers to provide resistance while they swim away from a wall toward the center of the pool. The objective of this project is to build a modular data system that can be added to these machines to record and log quantitative information during their use. This information will be stored on a web server, and made available to the user for analysis and visualization through a web application. Workout data can also be downloaded and interpreted at a later time, independent of the web application. The data system should be water resistant ...
Hovercam, 2017 The University of Akron
Hovercam, Kevin Rauh, Ross Palenik
Honors Research Projects
Quadcopters are widely used in recreational areas and often have video cameras mounted to them. The Hovercam increases the range of usefulness of quadcopters and allow the user to record him or herself while performing any task. The Hovercam will use GPS to track and follow a target. A smartphone application will be used to control the Hovercam in its basic functions of taking off, hovering, and landing.
Packmule, 2017 The University of Akron
Packmule, Jared M. Alexander, Jared J. Ford, Timothy J. Griffiths, Andray Pennington
Honors Research Projects
People face demands of hauling equipment and belongings with them every day, whether it be for work or leisure. This design report discusses and details a product that would allow people to overcome the struggles of this. The Packmule is an autonomous following robot that has the capability of carrying a load up to 30 pounds. The design involves two independently controlled motors operating two drive wheels so that the Packmule will be flexible in the directions it can move. There are also two more steering wheels for support of the base and the load inside. The way in which ...
Directional Modulation For Compact Devices, 2017 Dublin Institute of Technology
Directional Modulation For Compact Devices, Adam Narbudowicz
A new directional modulation system which uses radiation pattern data for modulation encoding is proposed. The approach allows compact multiport antennas (e.g. MIMO capable antennas) to be used for directional modulation, replacing extensive arrays. The modulation weighting coefficients are calculated with a fixed, antenna specific equation, thus reducing computational complexity. The solution is intended to enhance privacy in small, battery-operated wireless devices, required for “Internet of Things” applications.
Multi-Band Antenna Array Based On Double Negative Metamaterial For Multi Automotive Applications, 2017 Universiti Malaysia Perlis
Multi-Band Antenna Array Based On Double Negative Metamaterial For Multi Automotive Applications, Mohd Jamlos, Abdulrahman Alqadami,, Imtiaz Islam, Ping Soh, Rizalman Mamat, Khairil Khairi, Adam Narbudowicz
Nowadays, the demand for antennas in wireless communication system for automotive applications is rising at a rapid rate [1, 2]. Their usage includes collision avoidance system (CAS), Vehicle-to-vehicle communications, pre-crash safety systems, Global Positioning Systems (GPS), tyre pressure monitoring system (TPMS), Wireless Local Area Network (WLAN), etc. To enhance its effectiveness in these new applications, a small, multi-band, multi-functional antenna is required instead of conventional single band antennas [2, 3]. Such multifunctional antennas with favourable radiation characteristics are more practical in addressing modern antenna design requirements. However, the achievement of the above mentioned antenna’s features using conventional materials and ...
Tomorrow’S Backhaul: Analyzing The Backhaul Options For Next Generation Mobile Broadband, 2017 University of Colorado at Boulder
Tomorrow’S Backhaul: Analyzing The Backhaul Options For Next Generation Mobile Broadband, Adnan Munir Mian
Interdisciplinary Telecommunications Graduate Theses & Dissertations
Despite forecasted quadratic growth of cellular traffic over the next several years, no in-depth analysis of brownfield and greenfield Long Term Evolution (LTE) backhaul deployment over different local access network options has been published. The models in this dissertation integrate engineering with economic analysis of the backhaul to support LTE mobile broadband network employing Digital Subscriber Line (DSL), cable (DOCSIS), fiber, or microwave networks for the backhaul network. The results of the model allow a cellular provider to determine when to upgrade a network and determine which backhaul solution is the lowest cost depending upon traffic load and spectrum allocation ...
Design And Implementation Of An Improved Android Application For Bard Shuttle Services, Chance O'Neihl Wren
Senior Projects Spring 2017
With the growing population of Bard College, the need for the college’s shuttle system continues to grow. As a result, enabling the Bard community to quickly and easily access the shuttle schedules and times, has also become more important in the daily of life of Bard College's inhabitants. Although Bard College has a mobile application for Android and iPhone mobile devices alike, there was a growing demand for a new improved shuttle application for Android mobile devices. This project seeks to improve the functionality, user friendliness, and availability of shuttle schedules to the Bard Community, in the form ...