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Dissertations / Theses on the topic 'Physical layer implementation'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

Bhatia, Nikhil S. "A Physical Layer Implementation of Reconfigurable Radio." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/35926.

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The next generation of wireless communications will demand the use of software radio technology as the basic architecture to support multi-standard, multi-mode and future-proof radio designs. Software-defined radios are configurable devices in which the physical layer can be reprogrammed to support various standards. Field programmable architectures provide a suitable platform to achieve such run-time reconfigurations of the physical layer of the radio. This thesis explores the use of FPGAs in the design of reconfigurable radios. The results presented here demonstrate how FPGAs can be used to

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Koteng, Roger Martinsen. "Evaluation of SDR-implementation of IEEE 802.15.4 Physical Layer." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10128.

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<p>The concept of software-defined radio (SDR) holds great promise. The idea behind SDR is to move software as close to the antenna as possible. This can improve flexibility, adaptability and reduce the time-to-market. This thesis covers the evaluation of algorithms for implementing IEEE 802.15.4 physical layer. In collaboration with a digital circuit designer some of these algorithms were chosen and formed a basis for a DSP architecture optimized for low-complexity, low-power radio standards. The performance of a implementation using these algorithms were then evaluated by means of analytical

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Jeong, Jeong-O. "Hybrid FPGA and GPP Implementation of IEEE 802.15.4 Physical Layer." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/34425.

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In this thesis, two different cases of hybrid IEEE 802.15.4 PHY (Physical Layer) implementation are explored. The first case is an FPGA implementation of IEEE 802.15.4 PHY on the Xilinx Spartan-3A DSP FPGA of USRP N210. All of the signal processing tasks are performed on the FPGA, while less complex MAC (Media Access Control) layer tasks are performed in GNU Radio on the host. The second case is an implementation of a multi-channel IEEE 802.15.4 receiver. A four-channel channelizer is implemented on the external Virtex 5 FPGA, while the IEEE 802.15.4 receiver is implemented in GNU Radio on the

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Ryland, Kevin Sherwood. "Software-Defined Radio Implementation of Two Physical Layer Security Techniques." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/82055.

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This thesis discusses the design of two Physical Layer Security (PLS) techniques on Software Defined Radios (SDRs). PLS is a classification of security methods that take advantage of physical properties in the waveform or channel to secure communication. These schemes can be used to directly obfuscate the signal from eavesdroppers, or even generate secret keys for traditional encryption methods. Over the past decade, advancements in Multiple-Input Multiple-Output systems have expanded the potential capabilities of PLS while the development of technologies such as the Internet of Things has

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5

Kuo, Ying-Chi. "Implementation of Bluetooth Baseband Behavioral Model in C Language." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-635.

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<p>This master thesis is as a final project in the Division of Computer Engineering at the Department of Electrical of Engineering, Linköping University, Sweden. The purpose of the project is to set up a baseband behavioral model for a Bluetooth system based on standards. In the model, synchronization in demodulation part has been focused on. Simulation results are analyzed later in the report to see how the method in demodulation works. Some suggestions and future works for receiver are provided to improve the performances of the model.</p>

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Zarzo, Fuertes Luis. "OFDM PHY Layer Implementation based on the 802.11 a Standard and system performance analysis." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2796.

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<p>Wireless communication is facing one of the fastest developments of the last years in the fields of technology and computer science in the world. There are several standards that deal with it. In this work, the IEEE standard 802.11a, which deals with wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, is going to be discussed in detail. </p><p>Taking this into consideration, PHY specifications and its environment are going to be studied. </p><p>The work that the ISY department at the Institute of Technology of the Linköping University has proposed is to design

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Fält, Richard. "Feasibility study: Implementation of a gigabit Ethernet controller using an FPGA." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1681.

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<p>Background: Many systems that Enea Epact AB develops for theirs customers communicates with computers. In order to meet the customers demands on cost effective solutions, Enea Epact wants to know if it is possible to implement a gigabit Ethernet controller in an FPGA. The controller shall be designed with the intent to meet the requirements of IEEE 802.3. </p><p>Aim: Find out if it is feasible to implement a gigabit Ethernet controller using an FPGA. In the meaning of feasible, certain constraints for size, speed and device must be met. </p><p>Method: Get an insight of the standard IEEE 802

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8

Ivan. "Vehicle to vehicle communication systems performance evaluation : A simulation approcach combining physical layer implementation, propagation channel model and antenna properties." Rennes, INSA, 2012. http://www.theses.fr/2012ISAR0009.

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V2X est un système de communication entre les véhicules (ou V2V) et entre les véhicules et l'infrastructure routière (véhicule à l'infrastructure, ou V2I) fonctionnant à 5,9 GHz, avec pour principal objectif d'améliorer la sécurité routière et d'augmenter la fluidité du trafic. L'évaluation des performances du système V2X par simulation numérique, reposant sur des modèles précis et éprouvés, constitue une étape fondamentale dans une logique de conception-validation avant l'intégration sur véhicule réel. Le travail présenté dans ce document se concentre sur les techniques de simulation pour l'é

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Javel, Aymeric de. "5G RAN : implémentation de la couche physique et découpage du réseau." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAT031.

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Une des évolutions de la 4G à la 5G est l'hétérogénéité des terminaux qui accèdent au réseau. Ces terminaux vont des smartphones aux véhicules connectés en passant par les capteurs pour l'agriculture. Étant donné que les contraintes et les exigences associées aux différents types de terminaux sont hétérogènes, il n'est pas facile de multiplexer les services qui leur sont associés sur une seule infrastructure physique. Le slicing est la technologie qui permet à l'infrastructure physique de fournir plusieurs réseaux logiques (appelés slices) pour servir les différents terminaux et services assoc

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Schetzina, Karen E., William T. Dalton, Deborah Pfortmiller, Hazel Robinson, Elizabeth Lowe, and H. Stern. "The Winning With Wellness Pilot Project: Rural Appalachian Elementary Student Physical Activity and Eating Behaviors and Program Implementation 4 Years Later." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etsu-works/5106.

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School-based efforts to promote physical activity and healthier eating are a potentially effective approach to decreasing child obesity in rural populations. This article describes follow-up data on student activity and eating behaviors 4 years after implementation of the Winning with Wellness obesity prevention initiative. This project was based on the Centers for Disease Control and Prevention's coordinated school health model and used a community-based participatory research approach to address health behaviors in rural Appalachian elementary students. Results suggest significant increases

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Dann, Stephen John David. "Progress towards a demonstration of multi-pulse laser Wakefield acceleration and implementation of a single-shot Wakefield diagnostic." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:6a7fe676-a9f4-4b50-a04e-9052e08cdd1b.

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An ongoing experiment is described to demonstrate the principle of multi-pulse laser wakefield acceleration, in which a plasma wakefield is resonantly excited by a train of laser pulses, spaced by the plasma wavelength. Particle-in-cell simulations of the initial single-pulse experimental setup are presented, in order to calculate the expected signal. Preliminary results are presented and future plans, based on work done so far, are discussed. Part of this work involves the implementation of a single-shot wakefield diagnostic - frequency-domain holography, which records the phase shift caused

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12

Qiu, Xin Rong, and 邱信榮. "Physical layer implementation of FDDI LAN using CD laser with PRS." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/14879309269491351928.

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Maduike, Dumezie K. "Design and Implementation of Physical Layer Network Coding Protocols." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7194.

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There has recently been growing interest in using physical layer network coding techniques to facilitate information transfer in wireless relay networks. The physical layer network coding technique takes advantage of the additive nature of wireless signals by allowing two terminals to transmit simultaneously to the relay node. This technique has several performance benefits, such as improving utilization and throughput of wireless channels and reducing delay. In this thesis, we present an algorithm for joint decoding of two unsynchronized transmitters to a modulo-2 sum of their transmitted mes

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14

Kuo, Jin-Long, and 郭圳龍. "Design and Implementation of an ATM Physical Layer Transceiver." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/72478816519717044610.

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碩士<br>中原大學<br>電子工程學系<br>82<br>When conventional digital transmission systems are unable to support a wide variety of services, the Broadband Integrated Service Digital Networks (B-ISDN) are proposed to integrate various services. A new payload multiplexing technique, called asynchronous transfer mode (ATM), has been proposed as the transfer mode for implementing the B-ISDN. Many people are engageed in the research of the ATM product. The purpose of the thesis is to design a VLSI ASIC ( Appl

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15

Wu, Jia-Wei, and 吳家偉. "Software Implementation of Channel Coding for WiMAX Physical Layer." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/sxn882.

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碩士<br>國立臺北科技大學<br>電子電腦與通訊產業研發碩士專班<br>95<br>The standard 802.16-2004 for WiMAX contains five physical layers, in which OFDM physical layer comprises three kinds of error correcting codes. In this paper the concatenated code for Reed-Solomon code and convolutional code is considered as a subject for discussion. This paper illustrates encoding/decoding principle for RS-CC with some examples, and introduces encoding/decoding algorithms for the transmitter and receiver in order.

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Miryala, Dinesh Kumar. "Implementation of PCS of Physical Layer for PCI Express." Thesis, 2009. http://ethesis.nitrkl.ac.in/1411/1/thesis_dinesh.pdf.

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PCI Express is third generation Computer Bus to inter connect peripherals in a Computer, Servers, Mobile sets and systems. PCS is the sublayer of the physical layer of PCI Express 1.0. The major constituents of this layer are transmitter and receiver. Transmitter comprises of 8b/10b encoder. The Primary purpose of this scheme is to embed a clock into the serial bit stream of transmitter lanes. No clock is transmitted along with the serial data bit stream. This eliminates EMI noise and provides DC balance. Receiver comprises of special symbol detector, elastic buffer and 8b/10b decoder. Elast

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Huang, Lang, and 黃朗. "Design and Implementation of a USB 3.1 Gen2 Physical Layer." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5m74dk.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>106<br>Universal Serial Bus (USB) is a serial transmission standard widely used in computer systems and external devices. It has many advantages such as driverless installation, easy insertion and removal, fast speed, high compatibility, and low price. Most of computers and peripheral devices choose USB as the standard interface due to these advantages. The physical layer is the lowest layer in the USB architecture. It is built, maintained, and removed for the real connections. To ensure that raw data can be transmitted over a variety of physical media, the physical

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Soreng, Bineeta. "Implementation of WiMAX physical layer baseband processing blocks in FPGA." Thesis, 2013. http://ethesis.nitrkl.ac.in/5105/1/211EC2303.pdf.

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This project thesis elaborates on designing a baseband processing blocks for Worldwide Interoperability for Microwave Access (WiMAX) physical layer using an FPGA. WiMAX provides broadband wireless access and uses OFDM as the essential modulation technique. The channel performance is badly affected due to synchronization mismatches between the transmitter and receiver ends so the transmitted signal received is not reliable as the OFDM deals with high data rate. This thesis includes the theory and concepts behind OFDM, WiMAX IEEE 802.16d standard and other blocks algorithms, its architectures us

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Tseng, Ya-Hui, and 曾雅惠. "FPGA Implementation of Physical Layer and Functional Verification of Link Layer of Universal Serial Bus." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/10252614811215708520.

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20

Liu, Shou-Ming, and 劉守明. "FPGA-Based Design and Implementation on Physical Layer of IEEE 802.16d." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/96606032632344174328.

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碩士<br>國立中興大學<br>電機工程學系所<br>97<br>This thesis proposes according to IEEE 802.16 standards and mainly concentrates on the 802.16d OFDM physical layer, which is integrated with various key modules including Forward Error Correction, FFT/IFFT module, OFDM synchronous circuit and several other modules to constitute the entire base band system. And to make the main mould group of the rest in order to finish physical layer of circuit of the whole entity in fact, this model is implemented by Stanford University Interim channel models and frequency domain channel estimation is selected for this model.

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"Development and Implementation of Physical Layer Kernels for Wireless Communication Protocols." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.40213.

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abstract: Historically, wireless communication devices have been developed to process one specific waveform. In contrast, a modern cellular phone supports multiple waveforms corresponding to LTE, WCDMA(3G) and 2G standards. The selection of the network is controlled by software running on a general purpose processor, not by the user. Now, instead of selecting from a set of complete radios as in software controlled radio, what if the software could select the building blocks based on the user needs. This is the new software-defined flexible radio which would enable users to construct wireless s

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Sung, Gang-Neng, and 宋岡能. "Design and Implementation of Physical Layer for FlexRay-based Automotive Communication Systems." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/79183330191873304771.

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博士<br>國立中山大學<br>電機工程學系研究所<br>99<br>In this dissertation, we propose a circuit design and implementation of physical layer for FlexRay-based automotive communication systems which are expected to be widely used in car electronics for the years to come. To reduce the volume of electrical lines in a car and ensure safe connections, the automotive communication systems are more important than ever. FlexRay systems have been deemed as better than other existing solutions for the complicated in-vehicle networks. A low-voltage differential-signaling-like transmitter is proposed to drive the twisted p

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Ku, Chen-Chia, and 古鎮嘉. "Design and Implementation of LTE Downlink Physical Layer Transmitter with SDR Platform." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/9a4b84.

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碩士<br>國立中央大學<br>通訊工程學系<br>106<br>This paper focuses on the transmission of Control Region and Data Region in the LTE downlink physical layer according to the standard specications dened by 3GPP Release 12. In this thesis, we introduce for the LTE downlink system, in- cluding the use of OFDM(Orthogonal Frequency Division Multiplexing)technology, specications and uplink modulation and downlink modulation principle, etc. In this thesis, we used Software-dene-radio to achieve LTE downlink transmitter. By the Software-dene-radio platform, we can immediatly transmit and receiver signal in the air on

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Muni, Bijaya. "Physical Layer Implementation of a class of ZigBee Baseband Transceiver using FPGA." Thesis, 2013. http://ethesis.nitrkl.ac.in/4570/1/thesis-zigbee-implementaion-fpga-final-after-viva-voce.pdf.

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ZigBee and IEEE 802.15.4 standard for wireless technology, developed in 2003 were designed for interconnection of data communication using low data rate, low power and low complexity short range communication in a wireless personal area network (WPAN). Later in 2006, it was enhanced for market applicability to remove ambiguities in implementation for low data rate and short range wireless networks with high battery life. This technology supports cost effective, low power, wireless network monitoring and control products based on open global standard. This thesis presents a FPGA implementatio

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Yu, Mingchao. "A study of DVB-T2 standard with physical layer transceiver design and implementation." Master's thesis, 2011. http://hdl.handle.net/1885/150437.

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The second generation of terrestrial digital video broadcasting (DVB-T2) standard was published by European Telecommunications Standards Institute in 2008. Compared with the previous DVB-T, the new standard offers better robustness to severe channel conditions and provides up to 60% data capacity increment. These performance improvements are achieved through the adoption of new channel coding and modulation techniques. This thesis concentrates on the physical layer transceiver of DVB-T2, including bit-interleaved coded modulation (BICM) module, frame mapper module, and orthogonal-frequency

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Tsai, Cheng-Chin, and 蔡承志. "A GPU Implementation of IEEE 802.16 OFDM Physical Layer for Software-Defined Radio." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/65852663364352153717.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>101<br>Wireless baseband processing, which usually requires high computation complexity and high data throughput, is regarded as the most challenging issue for Software-Defined Radio (SDR) systems. To relieve the difficulty in SDR systems, a modern Graphics Processing Unit (GPU) is chosen as implementation platform due to its numerous powerful arithmetic logic units. However, because of the lack of the universal parallel programming framework for SDR systems, it is difficult to take advantage of the GPU architecture. To overcome this problem, in this thesis, we prop

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Lin, Yung-Chuan, and 林永權. "The System Design and Firmware Implementation on Physical Layer of IEEE 802.11b Wireless LAN." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/68255526620242517931.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>91<br>Since internet was invented, the needs of the information gradually increase. Hence, the standard of the high-speed Wireless LAN is continuously performed. From the early IEEE 802.11 , IEEE 802.11b and IEEE 802.11a to the newest wireless LAN standard, IEEE 802.11g, the highest speed is up to 54M bits/s. This thesis focuses on the design of a baseband transceiver conforming with the IEEE 802.11b standard. In this thesis, we investigate the channel characteristics of the Wireless LAN, and firstly concerned about the harmful effects such as, frequency off

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Kuo, Shu-Hua, and 郭淑華. "The Low Noise Output Buffer Design Techniques and Transceiver Implementation for USB2 Physical Layer." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/96814474123436341712.

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碩士<br>國立中央大學<br>電機工程研究所<br>88<br>High-speed I/O is the key component to successfully transmit data between electronic devices. Simultaneous switching noise (SSN) or called ground bounce is one of the major noise sources in high-speed digital circuit. There are two research topics in this thesis. First we focus on the overview of SSN. We will propose an output buffer - AC/DC for reducing SSN, output signal ringing and maintain DC current capability. The test chip by using UMC 0.35um 1P5M digital process will be implemented to verify the theoretical analysis results and circuit design techn

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ZHANG, TAI-BIN, and 張泰斌. "Design and implementation of physical layer for optical fiber token bus local area network." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/38725273493293145585.

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Hou, Ching-I., and 侯清逸. "Physical-Layer Transceiver Implementation and SDR Platform Verification for 5G Ultra-Reliable Low-Latency Communications." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/6wew6r.

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碩士<br>元智大學<br>電機工程學系乙組<br>107<br>This thesis is to research the transceiver design of the uplink control and data channels of 5G mobile communication systems. This research focuses on the use of low complexity technology to achieve high reliability and low latency communication proposes. In this thesis, we adopt the 5G-NR physical layer specification, i.e., 3GPP 38.211, to design the transceiver of the Physical Uplink Control Channel (PUCCH) and Physical Uplink Share Channel (PUSCH). In wireless communications, the receiver involves multiple distortion factors, e.g., multipath and carrier freq

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Huang, Chi-Hao, and 黃啟豪. "Analysis and Implementation of IEEE 802.16 WiMAX System Architecture on Linux Operating System and Software Physical Layer." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/17398069859928985320.

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碩士<br>淡江大學<br>電機工程學系碩士班<br>93<br>During the system providers of mobile communication investing much money to deploy 3G mobile communication networks, computer industry proposes another wireless communication technology: WiMAX (Worldwide Interoperability for Microwave Access) technique, which is also called as IEEE 802.16 communication technology. It is a strong wireless communication technology to provide users being able to quickly and arbitrarily use wireless data communication services, and this technique also has the potential to be a last mile solution of broadband home network connecting

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32

Manavi, Farzad. "Implementation of OFDM modem for the physical layer of IEEE 802.11a standard based on Xilinx Virtex-II FPGA." Thesis, 2004. http://spectrum.library.concordia.ca/7949/1/MQ91079.pdf.

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In this thesis, a prototype design for the Physical Layer of IEEE 802.11a standard, which is based on Orthogonal Frequency Division Multiplexing (OFDM) technique, is presented. Implementation aspects of an OFDM modem on Xilinx Virtex II field programmable gate array (FPGA) are addressed. The system includes a synchronization circuitry used for packet detection and time synchronization. The design flow starts with floating-point modeling with parameters specified by IEEE 802.11a for the physical layer of indoor Wireless Local Area Network (WLAN) modems. After algorithmic exploration and perfor

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Martins, Cesar Miguel dos Santos. "Implementação em plataformas SDR de esquemas de codificação para segurança na camada física baseados em códigos curtos e técnicas de interleaving." Master's thesis, 2017. http://hdl.handle.net/10316/83388.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>Os últimos anos trouxeram um crescimento das comunicações sem fios, o que se refletiu numa maior preocupação com a segurança dos dados transmitidos entre dispositivos. Apesar da criptografia providenciar níveis satisfatórios de segurança, não é inquebrável, pelo que não se consegue garantir que não haja alguma fuga de informação. Nesse sentido, têm sido desenvolvidos métodos de introduzir segurança também na camada física, como complemento à segurança já existent

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Huang, Chien-Wei, and 黃健瑋. "The System Design and Firmware Implementationon Physical Layer of IEEE 802.11a Wireless LAN." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/53599528600526569594.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>90<br>Owing to the rapidly development of wireless data communication, wireless LAN with its high speed transmission is also proposed, then this thesis focuses on the design of a baseband transceiver conforming with the IEEE 802.11a standard. Due to the using of Orthogonal Frequency Division Multiplexing on physical layer, some traditional issues such as the recovery of timing clock and carrier frequency, immoderate peak to average power ratio will be analyzed and solve. From the simulation results of SPW, the synchronization solutions one designs not only have su

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