Relevant bibliographies by topics / Parallel data-transmission systems

Academic literature on the topic 'Parallel data-transmission systems'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Parallel data-transmission systems"

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Varshavsky, V. I., V. B. Marakhovsky, and R. A. Lashevsky. "Self-Timed Data Transmission in Massively Parallel Computing Systems." Integrated Computer-Aided Engineering 4, no. 1 (January 1, 1997): 47–65. http://dx.doi.org/10.3233/ica-1997-4104.

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Younus, Safwan Hafeedh, Aubida A. Al-Hameed, Ahmed Taha Hussein, Mohammed Thamer Alresheedi, and Jaafar M. H. Elmirghani. "Parallel Data Transmission in Indoor Visible Light Communication Systems." IEEE Access 7 (2019): 1126–38. http://dx.doi.org/10.1109/access.2018.2886398.

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Ehlert, M. "Different approaches of high speed data transmission standards." Advances in Radio Science 2 (May 27, 2005): 187–93. http://dx.doi.org/10.5194/ars-2-187-2004.

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Abstract. A number of standards addresses the problem of high-speed data transmission on serial or serial-parallel data lines. Serial-parallel data transmission means the transmitted information is distributed on parallel data lines. Even though several standards exist, there are only a few basic techniques used in most of these standards. This paper is giving an overview of these different basic techniques used in the physical layer of today’s data transmission standards, for example DVI/HDMI, USB2.0, Infiniband, SFI5, etc. [1–9]. The main focus lies on the approaches used for physical signaling, line coding and information synchronization in serial and serialparallel systems. In addition, currently discussed techniques to improve data transmission in the future will be presented.
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Wang, Kaifeng, Hui Li, and Qi Zhang. "Parallel Redundancy Protocol for Railway Wireless Data Communication Network." Wireless Communications and Mobile Computing 2022 (April 5, 2022): 1–13. http://dx.doi.org/10.1155/2022/3312569.

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In order to solve the problem that the railway application services have strict requirements on the reliability, delay, and other indicators of mobile data communication, a parallel redundancy protocol for the railway wireless data communication network is proposed. By introducing a redundancy adaptation layer into the standard TCP/IP model, multi-link parallel data transmission is realized and transparent to the network layer and above. Transmitting multiple copies of the same packet through different paths makes the application systems have redundant communication capability without changing the existing data transmission mode. At the same time, according to the requirements of the receiving entity for redundant data elimination, an improved Bloom filter is proposed. By expanding the bit array and using the countdown mechanism, the elements in the data set can be dynamically inserted, deleted, and retrieved over time. Theoretical analysis and test results show that the proposed protocol can meet the requirements of data transmission between the on-board and trackside equipment and has the characteristics of simple deployment, high reliability, and high stability. Compared to using a single transmission link, the packet loss rate from field test can be reduced by 39.67% at the maximum, and the throughput and end-to-end data transmission delay are also significantly improved. The test in this paper also shows that the additional delay introduced is a maximum of 5.07 μs, which will not significantly affect the data transmission performance.
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Ermolayev, V. T., A. G. Flaksman, I. M. Averin, and D. V. Gribov. "Effectiveness of Space-Division Multiple-Access in MIMO Communication Systems with Parallel Data Transmission." Radiophysics and Quantum Electronics 47, no. 2 (February 2004): 129–38. http://dx.doi.org/10.1023/b:raqe.0000035694.99846.93.

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Mohsin, Imran, Magnus Karlsson, and Shaofang Gong. "Frequency diplexer network for wireless parallel data transmission and ultrawideband systems utilizing manifold technique." Microwave and Optical Technology Letters 56, no. 8 (May 24, 2014): 1869–71. http://dx.doi.org/10.1002/mop.28464.

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Krupenin, Alexander, Denis Makhov, Alexey Kuzmenko, and Vasily Sirchenko. "Method for Increasing Data Transmission Rate in Parallel Radio Channels of Special-Purpose Robotic Systems." Voprosy kiberbezopasnosti, no. 6(34) (2019): 102–12. http://dx.doi.org/10.21681/2311-3456-2019-6-102-112.

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Kumar, A. Achyuth, Dinesh Biradar, Shiva Teja, and M. Vijay Babu. "Simulation and Implemetation of High-Speed Data Transmission Over Aurora Protocol Using FPGA." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (May 31, 2022): 3783–87. http://dx.doi.org/10.22214/ijraset.2022.43224.

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Abstract: This paper proposes a simulation and implementation of highspeed knowledge transmission over twin freelance aurora channels on One GTX (Gigabit Transceivers) twin TILE by configuring multi-gigabit transceivers (MGT’s), that area unit gift within the virtex-5 FPGA victimization aurora protocol. (Here GT suggests that Gigabit transceivers (GT) and X indicates that these transceivers belong to Virtex-5 FXT platform. FXT platform supports superior embedded systems with advanced serial connectivity). Firstly, a 128-bit parallel knowledge is to be generated victimization simulators, that area unit enforced victimization VHDL language. The asynchronous first-in first-out (AFIFO) takes this 128-bit knowledge as input and produces an output of 16-bit parallel knowledge. This knowledge goes to the aurora module in parallel type as serial frames (i.e., 8 frames, every frame consists of two bytes). Finally, the 128-bit parallel knowledge is transmitted to the receiver module serially over fibre optic cable at the speed of three.125Gbps victimization study options of virtex5 FPGA. to attain high speed, Multi-Gigabit Transceivers (MGT) area unit used. In virtex-5 FPGA, these Multi-Gigabit Transceivers area unit obtainable as arduous IPs that operates at the clock rate of 156.25 megahertz (MGT clock). For configuring these MGT’s, Aurora protocol is employed, that converts the parallel knowledge into serial knowledge and the other way around. Finally, the information is transmitted on 2 freelance aurora channels and any testing is distributed victimization chip scope professional analyser to verify the integrity of information. Keywords: Aurora protocol, Virtex-5 FPGA, MGT’s, AFIFO, twin freelance Aurora Channels, GTX twin TILE, Serial knowledge Transmission.
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Jia, Jianbo, Yahui Jia, and Xiaofei Li. "Analysis, Design, and Experimental Verification of a Parallel Wireless Power and Data Transmission Method for Rotary Steering Systems." Energies 15, no. 17 (August 31, 2022): 6349. http://dx.doi.org/10.3390/en15176349.

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In the rotary steering system of oil drilling, both power and data transmission are needed. This paper presents a parallel power and data transmission method for a rotating steering system with output voltage control. To reduce the size of the system, power and data are transmitted through the same rotational coupling mechanism. A power transfer resonance circuit is used to suppress the influence of the power transfer on data transmission. Therefore, crosstalk interference between the power and the data transmission channel is negligible. The experimental prototype is built, and the feasibility of the data transfer method and the closed-loop control method is verified. The experimental results are in good agreement with the theoretical analysis.
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Wan, Hon-Hing, and Yu-Kwong Kwok. "High Data Rate Video Transmission Using Parallel TCP Connections: Approaches and Performance Evaluation." Journal of Supercomputing 35, no. 2 (February 2006): 119–39. http://dx.doi.org/10.1007/s11227-006-3071-8.

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Dissertations / Theses on the topic "Parallel data-transmission systems"

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Chai, Huiqiong. "Parallel concatenation of regular LDGM codes." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 81 p, 2007. http://proquest.umi.com/pqdlink?did=1251904891&Fmt=7&clientId=79356&RQT=309&VName=PQD.

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Knee, Simon. "Opal : modular programming using the BSP model." Thesis, University of Oxford, 1997. http://ora.ox.ac.uk/objects/uuid:97d95f01-a098-499c-8c07-303b853c2460.

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Parallel processing can provide the huge computational resources that are required to solve todays grand challenges, at a fraction of the cost of developing sequential machines of equal power. However, even with such attractive benefits the parallel software industry is still very small compared to its sequential counterpart. This has been attributed to the lack of an accepted parallel model of computation, therefore leading to software which is architecture dependent with unpredictable performance. The Bulk Synchronous Parallel (BSP) model provides a solution to these problems and can be compared to the Von Neumann model of sequential computation. In this thesis we investigate the issues involved in providing a modular programming environment based on the BSP model. Using our results we present Opal, a BSP programming language that has been designed for parallel programming-in-the-large. While other BSP languages and libraries have been developed, none of them provide support for libraries of parallel algorithms. A library mechanism must be introduced into BSP without destroying the existing cost model. We examine such issues and show that the active library mechanism of Opal leads to algorithms which still have predictable performance. If algorithms are to retain acceptable levels of performance across a range of machines then they must be able to adapt to the architecture that they are executing on. Such adaptive algorithms require support from the programming language, an issue that has been addressed in Opal. To demonstrate the Opal language and its modular features we present a number of example algorithms. Using an Opal compiler that has been developed we show that we can accurately predict the performance of these algorithms. The thesis concludes that by using Opal it is possible to program the BSP model in a modular fashion that follows good software engineering principles. This enables large scale parallel software to be developed that is architecture independent, has predictable performance and is adaptive to the target architecture.
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Staake, Thorsten R. "IP traffic statistics : a Markovian approach." Link to electronic thesis, 2002. http://www.wpi.edu/Pubs/ETD/Available/etd-0429102-123525.

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Amani, Kikongo Elie. "Development and implementation of highly parallel algorithms for decoding perfect space-time block codes." 2012. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000209.

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M. Tech. Electrical Engineering.
Applies conditional optimisation to ML decoding of perfect STBCs, it is hypothesised that the obtained algorithms have reduced complexity and exhibit high DLP and TLP that can be exploited to map them on low-power multi-core SIMD processors, and possibly to reduce their runtimes and allow their real-time execution in a 4G wireless system.
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Books on the topic "Parallel data-transmission systems"

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Tallini, Luca. On a transmission time analysis for the parallel asynchronous communication scheme. Corvallis, OR: Oregon State University, Dept. of Computer Science, 1998.

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European PVM/MPI Users' Group Meeting (15th 2008 Dublin, Ireland). Recent advances in parallel virtual machine and message passing interface: 15th European PVM/MPI users' group meeting, Dublin, Ireland, September 7-10, 2008 : proceedings. Berlin: Springer, 2008.

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J, Dongarra J., Laforenza Domenico, and Orlando Salvatore 1961-, eds. Recent advances in parallel virtual machine and message passing interface: 10th European PVM/MPI User's group Meeting, Venice, Italy, September 29-October 2, 2003 : proceedings. Berlin: Springer, 2003.

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1952-, Cotronis Yiannis, and Dongarra J. J, eds. Recent advances in parallel virtual machine and message passing interface: 8th European PVM/MPI Users' Group Meeting, Santorini/Thera, Greece, September 23-26, 2001 : proceedings. New York: Springer, 2001.

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European PVM/MPI Users' Group Meeting (9th 2002 Linz, Austria). Recent advances in parallel virtual machine and message passing interface: 9th European PVM/MPI Users' Group Meeting, Linz, Austria, September 29-Oktober 2, 2002 : proceedings. New York: Springer, 2002.

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European PVM/MPI Users' Group Meeting (15th 2008 Dublin, Ireland). Recent advances in parallel virtual machine and message passing interface: 15th European PVM/MPI users' group meeting, Dublin, Ireland, September 7-10, 2008 : proceedings. Berlin: Springer, 2008.

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J, Dongarra J., Kacsuk Péter, and Podhorszki Norbert, eds. Recent advances in parallel virtual machine and message passing interface: 7th European PVM/MPI Users' Group Meeting, Balatonfüred, Hungary, September 10-13, 2000 : proceedings. New York: Springer, 2000.

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Beniamino, Di Martino, Kranzlmüller Dieter 1969-, and Dongarra J. J, eds. Recent advances in parallel virtual machine and message passing interface: 12th European PVM/MPI User's Group Meeting, Sorrento, Italy, September 18-21, 2005 ; proceedings. Berlin: Springer, 2005.

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Bernd, Mohr, ed. Recent advances in parallel virtual machine and message passing interface: 13th European PVM/MPI User's Group Meeting, Bonn, Germany, September 17-20, 2006 : proceedings. Berlin: Springer, 2006.

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1957-, Lastovetsky Alexey, Kechadi Tahar, and Dongarra J. J, eds. Recent advances in parallel virtual machine and message passing interface: 15th European PVM/MPI users' group meeting, Dublin, Ireland, September 7-10, 2008 : proceedings. Berlin: Springer, 2008.

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Book chapters on the topic "Parallel data-transmission systems"

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Gima, Kosuke, Ryuji Oma, Shigenari Nakamura, Tomoya Enokido, and Makoto Takizawa. "Parallel Data Transmission Protocols in the Mobile Fog Computing Model." In Lecture Notes in Networks and Systems, 494–503. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33506-9_44.

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Diestmann, Thomas, Nils Broedling, Benedict Götz, and Tobias Melz. "Surrogate Model-Based Uncertainty Quantification for a Helical Gear Pair." In Lecture Notes in Mechanical Engineering, 191–207. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_16.

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AbstractCompetitive industrial transmission systems must perform most efficiently with reference to complex requirements and conflicting key performance indicators. This design challenge translates into a high-dimensional multi-objective optimization problem that requires complex algorithms and evaluation of computationally expensive simulations to predict physical system behavior and design robustness. Crucial for the design decision-making process is the characterization, ranking, and quantification of relevant sources of uncertainties. However, due to the strict time limits of product development loops, the overall computational burden of uncertainty quantification (UQ) may even drive state-of-the-art parallel computing resources to their limits. Efficient machine learning (ML) tools and techniques emphasizing high-fidelity simulation data-driven training will play a fundamental role in enabling UQ in the early-stage development phase.This investigation surveys UQ methods with a focus on noise, vibration, and harshness (NVH) characteristics of transmission systems. Quasi-static 3D contact dynamic simulations are performed to evaluate the static transmission error (TE) of meshing gear pairs under different loading and boundary conditions. TE indicates NVH excitation and is typically used as an objective function in the early-stage design process. The limited system size allows large-scale design of experiments (DoE) and enables numerical studies of various UQ sampling and modeling techniques where the design parameters are treated as random variables associated with tolerances from manufacturing and assembly processes. The model accuracy of generalized polynomial chaos expansion (gPC) and Gaussian process regression (GPR) is evaluated and compared. The results of the methods are discussed to conclude efficient and scalable solution procedures for robust design optimization.
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Galan, Olga. "Protection of Information From the Influence of Noise on the Transmission of Video Data in a Geoinformation System." In Handbook of Research on Intelligent Data Processing and Information Security Systems, 227–62. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1290-6.ch010.

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The chapter describes parallel-hierarchical technologies that are characterized by a high degree of parallelism, high performance, noise immunity, parallel-hierarchical mode of transmission and processing of information. The peculiarities of the design of automated geoinformation and energy systems on the basis of parallel-hierarchical technologies and modified confidential method of Q-transformation of information are presented. Experimental analysis showed the advantages of the proposed methods of image processing and extraction of characteristic features.
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Kumar Tiwari, Aman, Priyanka Chaudhari, Shardul Pattewar, and Rohini Deshmukh. "LoRaWAN Based Manhole Cover Monitoring System." In Advances in Parallel Computing. IOS Press, 2021. http://dx.doi.org/10.3233/apc210078.

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An on-line monitoring system using LoRa based wireless technology for manhole cover is proposed. The system includes sensor sensing nodes, LoRaWAN network and application. LoRaWAN based IoT has very low power consumption for long-distance transmission. We use the accelerometer sensor to monitor the position, displacement or damage of manhole covers used in sewage systems. If these covers are moved or damaged, then LoRa board alerts the authorities LoRa gateway. The gateway is connected to The Things Network (TTN), a cloud-based crowd-funded open source LoRaWAN platform. The data is uploaded to the cloud and stored, and it will alert to the maintenance department. On TTN, our application will be launched and integrated with different features such as SMS.
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Fandango, Armando, and William Rivera. "High Performance Storage for Big Data Analytics and Visualization." In Advances in Data Mining and Database Management, 254–75. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3142-5.ch010.

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Scientific Big Data being gathered at exascale needs to be stored, retrieved and manipulated. The storage stack for scientific Big Data includes a file system at the system level for physical organization of the data, and a file format and input/output (I/O) system at the application level for logical organization of the data; both of them of high-performance variety for exascale. The high-performance file system is designed with concurrent access, high-speed transmission and fault tolerance characteristics. High-performance file formats and I/O are designed to allow parallel and distributed applications with easy and fast access to Big Data. These specialized file formats make it easier to store and access Big Data for scientific visualization and predictive analytics. This chapter provides a brief review of the characteristics of high-performance file systems such as Lustre and GPFS, and high-performance file formats such as HDF5, NetCDF, MPI-IO, and HDFS.
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Tripathy, Balakrushna, and Sharmila Banu K. "Rough Fuzzy Set Theory and Neighbourhood Approximation Based Modelling for Spatial Epidemiology." In Handbook of Research on Computational Intelligence Applications in Bioinformatics, 108–18. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0427-6.ch006.

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Modern epidemiological studies involve understanding individual and social level inferences and their role in the transmission and distribution of disease instances. The geographic relevance in epidemiology has been analysed in concurrence with these inferences. The substantial amount of data involved in an epidemiological study is usually very large and intuitively involves missing values and uncertainty. Rough Set Theory (RST) has been used in medical informatics for ‘outcome prediction' and ‘feature selection'. It can be used to construct the decision system involving spatial, medical and demographic data effectively. This chapter proposes the use of rough sets in conjunction with parallel techniques like Fuzzy sets, Intuitionistic systems and Granular (Neighborhood Approximation) computing for the classic problem of data representation, dimensionality reduction, generation and harvest of minimal rules. RST handles missing values and uncertainty more specific to spatial and medical features of data.
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Elumalai. G, Nallavan. G, and Ramakrishnan. R. "Smart Industry Monitoring and Controlling System Using IoT." In Advances in Parallel Computing. IOS Press, 2021. http://dx.doi.org/10.3233/apc210082.

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Air pollution in an ecosystem has proliferated industrial automation. This dissertation concentrates more on industrial automation and has design an embedded device with sensors to monitor and control the toxic gases in industries. This entire prototype is an excellent result for observing the toxic gases in industry and generates information by using data acquisition and transmission of data. “Internet of Things (IoT)” is a important technology behind this and it provide platform to bring together all the devices in the world to the internet. In this dissertation, the parameters monitored are temperature, humidity and gas leakages in industries. The sensor senses the parameters and uploads these data to the cloud with the help of NodeMCU. If observed gas level is above the threshold which is the safety limit of operation, the first alert is intimated from the Google cloud and the controlling action carried out (ie) automatically close gas leakage valves and then industry will take immediate step to control pollution. Or else, the second alert message is sent through Electronic mail (e-mail) to restore the safe limit, as government play role to power outage in the industries. Cloud is used to store the sensed data, which is then transmitted and processed.
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Senthilnayaki B, Mahalakshmi G, Narashiman D, Mahendran E, PremAnandh M, and Sairamesh L. "A Secure E-Governance System Using Blockchain Techniques." In Advances in Parallel Computing Algorithms, Tools and Paradigms. IOS Press, 2022. http://dx.doi.org/10.3233/apc220062.

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Secure data and property transmission between two parties is a difficult task in the real world. The existing system for e-governance operations is riddled with inefficiencies and dishonesty, resulting in records that are not safeguarded, and people are the ones who face the brunt of it. The proposed system is built upon utilizing blockchain principles to securely transfer E-governance processes from one party to another. It is an electronic record of data that necessitates the use of digital security. All of the data in the blockchain is immutable; it is almost impossible to modify the value of data once it has been placed into the blockchain. The proposed model is based on blockchain technology and implements a secure E-governance system in land registration. It aids in the upliftment of the disadvantaged and underprivileged sections of society by combating illicit land authorization. Because of this, the suggested system outperforms the current system.
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Aishwarya I, Carolin B, ChalceEbenS, and P. Kannan. "Accident Prevention Black-Box and Vehicle-to-Vehicle Communication Using Li-Fi and Wi-Fi Technologies." In Advances in Parallel Computing. IOS Press, 2021. http://dx.doi.org/10.3233/apc210097.

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The focus of the paper is Vehicle to Vehicle (V2V) communication system that uses a wireless communication technology using a LED transmitter and therefore the vehicle will transmit the information continuously to the opposite vehicle ahead it using Head light. The data is stored within the Secure Digital Card in comma separated value for future reference just in case of emergency at the equivalent time the data’s are stored in the Cloud Server for Government Reference to locate the accident prone zones. The Light fidelity (Li-Fi) is that the newest technology within the field of wireless communication. As the number of users are increasing, the speed of knowledge transmission within the wireless network gets automatically decreased.
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SivachandarK., V. Amudha, B. Ramesh, Jose Anand, M. ShanmugaSundari, and Jerril Gilda S. "MIMO-IDMA System Performance for SUI and LTE Frequency Selective Channels." In Advances in Parallel Computing Algorithms, Tools and Paradigms. IOS Press, 2022. http://dx.doi.org/10.3233/apc220059.

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The spectrum used by Code Division Multiple Access (CDMA) allows for a signal with a greater bandwidth by spreading electromagnetic energy. Multi-Carrier CDMA (MC-CDMA) is a telecommunications numerousentrée strategy that spreads each user symbol across the frequency domain with distinct codes. Cognitive Radio (CR) is a vibrant spectrum admittance enabling technology by dynamically allocating space for fundamental users by modifying its settings and base station. Two models for people on the cognitive spectrum are Opportunistic Spectrum Access (OSA) and Concurrent Spectrum Access (CSA). Using Co-Channel Interference (CCI) and Adjacent Channel Interference (ACI), the MC-CDMA system is an effective accessing strategy for multi-user data transmission (ACI). Multiple-Input Multiple-Output (MIMO) involving Space-Time Transmit Diversity (STTD), Spatial Multiplexing (SM), and collaborative MIMO is used for numerous data communication, and dependable Bit Error Rate (BER) presentation is attained. STBC (Space Time Block Coding) is equipped with two antennas and codes for data transmission across multiple antennas. At the receiver, STBC offers channel state information while maintaining a low level of complexity. The image’s pixels will be shuffled using Arnold’s Cat Map (ACM) encryption method. When compared to other compression methods, Integer Wavelet Transform (IWT) compression is stress-free. The Internet of Things (IoT) is used to examine tracklatency and power stages, STTD MC-CDMA faultoutput utilizing cognitive spectrum, and channel simulated parameterization. The output on fault levels with patient caring using Stanford University Interim (SUI) and Long Term Evolution (LTE) techniques with a Double STTD (DSTTD) assisted MC-CDMA cognitive spectrum system.
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Conference papers on the topic "Parallel data-transmission systems"

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Zhang, Hanyi, Liming Fang, Keyu Jiang, Weiting Zhang, Minghui Li, and Lu Zhou. "Secure Door on Cloud: A Secure Data Transmission Scheme to Protect Kafka's Data." In 2020 IEEE 26th International Conference on Parallel and Distributed Systems (ICPADS). IEEE, 2020. http://dx.doi.org/10.1109/icpads51040.2020.00061.

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Wei, Jie, Shangguang Wang, Ao Zhou, and Fangchun Yang. "CMIP: Data Transmission Latency Optimization for Cooperative Group in Multi-cloud by Adaptive Routing." In 2017 IEEE 23rd International Conference on Parallel and Distributed Systems (ICPADS). IEEE, 2017. http://dx.doi.org/10.1109/icpads.2017.00061.

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Zhang, Peilin, Xiaoyuan Ma, Oliver Theel, and Jianming Wei. "Packet-in-Packet: Concatenation with Concurrent Transmission for Data Collection in Low-Power Wireless Sensor Networks." In 2018 IEEE 24th International Conference on Parallel and Distributed Systems (ICPADS). IEEE, 2018. http://dx.doi.org/10.1109/padsw.2018.8644861.

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Sun, Xuege, Lin Sang, and Ke Wang. "Research on The Coupling mechanism of The Parallel Transmission of Power and Data for UAV." In 2020 8th International Conference on Power Electronics Systems and Applications (PESA). IEEE, 2020. http://dx.doi.org/10.1109/pesa50370.2020.9343966.

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Kirk, Andrew, and Hugo Thienpont. "Speed and parallelism trade-offs in optoelectronic transceiver systems." In Optics in Computing. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/oc.1997.owc.5.

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In this paper we will consider the design of optoelectronic transceiver systems. In particular we will examine the interdependency of channel frequency and parallelism for systems which are based on the of use optical emitters such as vertical cavity surface emitting lasers (VCSELs) and light emitting diodes (LEDs). It is generally assumed that VCSELs are the most desirable type of optical emitters and that as threshold currents continue to be reduced these elements will be employed in large arrays for freespace data transmission. We will show however that when the effects of power dissipation and receiver sensitivity are taken into account the performance of VCSELs is not significantly better than that of other, less efficient, emitter structures and that in some regimes it will be worse. This conclusion is also supported by the work of Psaltis et al [1] in the design of GaAs optoelectronic neurons. In contrast with previous studies of the scalability of optoelectronic parallel data transmission systems [2-4] we employ a sufficiently simple model of a transceiver which enables us to close the loop between the transmission and detection of signals. Taking arrays of PnpN optoelectronic thyristors [5] as an example we will show that there exists an optimal current which should be driven through an emitter in order to maximize the total bandwidth as a function of device density.
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Basso, Roberto, and Giulio Fanti. "Vibration Monitoring for Local Fault Detection in Synchronous Belts." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59197.

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The possibility of diagnosing the presence of a fault in a synchronous belt transmission during its work, without dismantling it, by monitoring the vibrations of the pulley support, was investigated in this work. After a few simulations with a multi-body numerical model, several experimental tests were carried out in an apparatus made up of a test bench, motion sensors, a system of signal acquisition and software for data processing. The behavior of mechanical transmissions with healthy and faulty synchronous belts was compared. The damage was simulated by removing a tooth from the belt. The results show that a localized defect on a synchronous belt modifies the frequency spectrum of the motion signals measured on the pulley support. From the experimental tests performed, the following results were obtained: the direction of vibrations measured on the pulley support must be chosen so as to be parallel to the direction of the taut side of the belt; the presence of a defect can be seen in the frequency spectrum by the change in the amplitude of the peaks at the first harmonics of the run frequency; the best condition to highlight the different behaviour in the power spectra occurs when the transmission is under load.
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Teiwes, Stephan, Heiko Schwarzer, and Harald Aagedal. "On the storage capacity of pixelated SLMs in coherent-optical information processing systems." In Spatial Light Modulators. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.stue.6.

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Spatial light modulators (SLMs) play a key role for the development of programmable optical systems in information processing [3]. Electrically addressable SLMs are of special interest since they can be used to implement computer-generated transmission functions. Such a function is typically represented in a computer by a two-dimensional discrete data structure and can be dynamically mapped onto the pixelated micro-structures of the SLM. This mapping can be interpreted as a computer memory access where a section of the computer memory is copied to the SLM in order to modulate an illumination wave. Consequently, the SLM is an optical storage with an electrical write-in and an optical read-out mechanism. In an optical system the read-out of an SLM is performed in parallel and can be used to realize specified functions. The function of an optical system can be defined either by its system function or its input/output-behavior. Evidently, the capability of an SLM to realize optical functions depends on its storage characteristics [4, 5, 6].
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Pyatin, Ilya S., and Juliy M. Boiko. "Synchronization of Communication Systems Based on SDR." In 16th IC Measurement and Control in Complex Systems. Vinnytsia: VNTU, 2022. http://dx.doi.org/10.31649/mccs2022.05.

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The development of mobile telecommunications proceeds by increasing the productivity of communication systems, increasing the speed of information transmission, expanding the frequency band, and reducing delays. A software defined radio (SDR) is a programmable transceiver that supports various wireless technologies without the need for hardware upgrades. The best development environment for SDR devices is field-programmable gate arrays (FPGAs) because they provide parallel data processing. The signal in the communication channel is distorted under the influence of many factors: conversion of the signal sampling frequency in the transmitter and receiver, frequency and phase shift of the signal in the communication channel, signal delay, effect of white noise, etc. To reduce the impact of these effects, the receiver includes a synchronization circuit. The receiver contains the following units: automatic gain adjustment; frequency offset correction; recovery of symbol synchronization; restoration of the phase of the carrier frequency; signal demodulation. To ensure fulfillment of the Nyquist criteria and reduction of intersymbol distortions, the transmitter and receiver of the communication system contain a shaping filter with a characteristic of the square root of the raised cosine. Synchronization circles provide a certain range of changes in destabilizing factors. When this range is exceeded, the parameters and quality of the communication system deteriorate. The down-converter of the sampling frequency was studied, and its frequency characteristic was obtained. It is built on the basis of half-band filters according to the quadrature scheme. The frequency shift estimation and correction algorithm is developed according to the maximum likelihood criterion. The symbol synchronization recovery subsystem is based on a phase-locked-frequency circuit (PLL). The main characteristics of the PLL: the time to reach blocking; error detected; transient behavior and traceability; bandwidth. These options depend on the field of application and expected operating conditions. The bandwidth must be sufficient to compensate for deviations between the generator frequency and the reference input signal. The study of the time required by the PLL for synchronization with the reference signal was carried out. The coefficient of bit errors and the magnitude of the error vector for various frequency shifts in the communication channel are determined. The purpose of the article is to evaluate signal distortions in the HDL implementation of the communication system based on the Xilinx Zynq-7000 development environment.
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Seki, Tomohiro, Kentaro Nishimori, Ken Hiraga, and Kenjiro Nishikawa. "Experimental evaluation of high speed parallel data transmission technology for wireless repeater system." In 2010 IEEE Radio and Wireless Symposium (RWS). IEEE, 2010. http://dx.doi.org/10.1109/rws.2010.5434178.

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Zheng, Xiwu. "Design of Parallel Big Data Stream Transmission System Based on Chaotic Migration Learning." In 2021 5th International Conference on Electronics, Communication and Aerospace Technology (ICECA). IEEE, 2021. http://dx.doi.org/10.1109/iceca52323.2021.9676157.

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Reports on the topic "Parallel data-transmission systems"

1

Bendikov, Michael, and Thomas C. Harmon. Development of Agricultural Sensors Based on Conductive Polymers. United States Department of Agriculture, August 2006. http://dx.doi.org/10.32747/2006.7591738.bard.

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In this 1-year feasibility study, we tried polymerization of several different monomers, commercial as well as novel, specially designed and synthesized for this project in the presence of the nitrate ion to produce imprinted conductive polymers. Polymers 1 and 2 (shown below) produced a response to nitrate, but one inferior to that produced by a polypyrrole (Ppy)-based sensor (which we demonstrated prior to this study). Thus, we elected to proceed with improving the stability of the Ppy-based sensor. In order to improve stability of the Ppy-based sensor, we created a two-layer design which includes nitrate-doped Ppy as an inner layer, and nitrate-doped PEDOT as the outer layer. PEDOT is known for its high environmental stability and conductivity. This design has demonstrated promise, but is still undergoing optimization and stability testing. Previously we had failed to create nitrate-doped PEDOT in the absence of a Ppy layer. Nitrate-doped PEDOT should be very promising for sensor applications due to its high stability and exceptional sensing properties as we showed previously for sensing of perchlorate ions (by perchlorate-doped PEDOT). During this year, we have succeeded in preparing nitrate-doped PEDOT (4 below) by designing a new starting monomer (compound 3 below) for polymerization. We are currently testing this design for nitrate sensing. In parallel with the fabrication design studies, we fabricated and tested nitrate-doped Ppy sensors in a series of flow studies under laboratory and field conditions. Nitrate-doped Ppy sensors are less stable than is desirable but provide excellent nitrate sensing characteristics for the short-term experiments focusing on packaging and deployment strategies. The fabricated sensors were successfully interfaced with a commercial battery-powered self-logging (Onset Computer Hobo Datalogger) and a wireless data acquisition and transmission system (Crossbow Technologies MDA300 sensor interface and Mica2 wireless mote). In a series of flow-through experiments with water, the nitrate-doped Ppy sensors were exposed to pulses of dissolved nitrate and compared favorably with an expensive commercial sensor. In 24-hour field tests in both Merced and in Palmdale, CA agricultural soils, the sensors responded to introduced nitrate pulses, but with different dynamics relative to the larger commercial sensors. These experiments are on-going but suggest a form factor (size, shape) effect of the sensor when deployed in a porous medium such as soil. To fill the need for a miniature reference electrode, we identified and tested one commercial version (Cypress Systems, ESA Mini-reference electrode) which works well but is expensive ($190). To create an inexpensive miniature reference electrode, we are exploring the use of AgCl-coated silver wire. This electrode is not a “true” reference electrode; however, it can calibrated once versus a commercial reference electrode at the time of deployment in soil. Thus, only one commercial reference electrode would suffice to support a multiple sensor deployment.
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