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Dissertations / Theses on the topic 'Measurement RSSI'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Henty, Benjamin E. "Throughput Measurements and Empirical Prediction Models for IEEE 802.11b Wireless LAN (WLAN) Installations." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34522.

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Typically a wireless LAN infrastructure is designed and installed by Networking professionals. These individuals are extremely familiar with wired networks, but are often unfamiliar with wireless networks. Thus, Wireless LAN installations are currently handicapped by the lack of an accurate, performance prediction model that is intuitive for use by non-wireless professionals. To provide a solution to this problem, this thesis presents a method of predicting the expected wireless LAN throughput using a site-specific model of an indoor environment. In order to develop this throughput predict

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2

Yılmazer, Şafak Enes. "Integrated Coverage Measurement and Analysis System for Outdoor Coverage WLAN." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2185.

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Daily usage of Wireless Local Area Networks (WLAN) in business life for specific purposes has became much more critical than before since it is sometimes crucial to have wireless connectivity and seamless roaming around the working environment. In this thesis, steps required in order to design and implement a large scale outdoor IEEE 802.11g WLAN will be shown. This WLAN project has been deployed in north of Sweden and target coverage was an open area consisting of a deep pit mine, connecting roads, workshops, offices, dumps and storage areas. All telecommunications equipment used in this proj

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3

Šimka, Marek. "Lokalizace uvnitř budov pomocí technologie LoRa." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442421.

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This diploma thesis focuses on possible utilization of LoRa (Long Range) technology for indoor localization purposes. In this thesis, the starter kit SK-iM282A is used to create a LoRa-based wireless link in the 2.4 GHz ISM band. Main attention is focused on the experimental localization using the RSSI method in the various transmission environments, including a description of the localization principle, the procedure of processing the measured data and the evaluation of localized coordinates. The rightness of the proposed measurement setup and methodology is verified by extensive measurements

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4

Botta, Miroslav. "Optimalizace odhadu vzdálenosti v bezdrátové ad-hoc síti." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218968.

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The work deals with processing of radio received signal strength in IEEE 802.15.4 which communicates in 2.4 GHz ISM band. The signal is processed by the three approximation methods. They are tested for their effectiveness for measuring in different radio environments. Furthermore, the work deals with calculation of the most efficient coefficients for distance calculating by radio transmission fucntions. It defines the issues of such solutions on practical examples. The work also deals with the experimental algorithm for implementing dynamic calibration of the coefficients. It describes the des

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5

Li, Zeyuan. "Target localization using RSS measurements in wireless sensor networks." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31356.

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The subject of this thesis is the development of localization algorithms for target localization in wireless sensor networks using received signal strength (RSS) measurements or Quantized RSS (QRSS) measurements. In chapter 3 of the thesis, target localization using RSS measurements is investigated. Many existing works on RSS localization assumes that the shadowing components are uncorrelated. However, here, shadowing is assumed to be spatially correlated. It can be shown that localization accuracy can be improved with the consideration of correlation between pairs of RSS measurements. By line

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6

Stenström, Jonathan. "Simultaneous Trajectory Optimization and Target Estimation Using RSS Measurements to Land a UAV." Thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-131117.

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The use of autonomous UAV’s is a progressively expanding industry. This thesisfocuses on the landing procedure with the main goal to be independent of visualaids. That means that the landing site can be hidden from the air, the landingcan be done in bad weather conditions and in the dark. In this thesis the use ofradio signals is investigated as an alternative to the visual sensor based systems.A localization system is needed to perform the landing without knowing wherethe landing site is. In this thesis an Extended Kalman Filter (EKF) is derived andused for the localization, based on the rece

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7

Sundberg, Simon. "Localization of eNodeBs with a Large Set of Measurements from Train Routers." Thesis, Karlstads universitet, Institutionen för matematik och datavetenskap (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-75456.

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This master thesis investigates the possibility of locating LTE base stations, known as eNodeBs, using signal measurements collected by routers on trains. Four existing algorithms for transmitter localization are adopted: the centroid, strongest signal, Monte Carlo path loss simulation and power difference of arrival (PDoA) methods. An improved version of Monte Carlo path loss simulation called logloss fitting is proposed. Furthermore, a novel localization method called sector fitting is presented, which operates solely on the cell identity and geographical distribution of the measurements. Th

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8

Obeidat, Huthaifa A. N. "Investigation of Indoor Propagation Algorithms for Localization Purposes: Simulation and Measurements of Indoor Propagation Algorithms for Localization Applications using Wall Correction Factors, Local Mean Power Estimation and Ray Tracing Validations." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17385.

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The objective of this work is to enhance the awareness of the indoor propagation behaviour, by a set of investigations including simulations and measurements. These investigations include indoor propagation behaviour, local mean power estimation, proposing new indoor path loss model and introducing a case study on 60 GHz propagation in indoor environments using ray tracing and measurements. A summary of propagation mechanisms and manifestations in the indoor environment is presented. This comprises the indoor localization techniques using channel parameters in terms of angle of arrival (A

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9

Lin, Ting-Wei, and 林廷瑋. "Using Bluetooth Technique in the RSSI Path Loss Measurement and Channel Model Construction in Indoor Wireless Transmission." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/54385920107056049621.

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碩士<br>淡江大學<br>電機工程學系碩士班<br>103<br>With the prosperous development of smart phones new smart phone applications constantly emerge in the daily life. Whenever there is a new application of smart phone introduced in the market it will always generate pro and con heated discussions. Following the development of BLE (Bluetooth Low Energy) Bluetooth related applications also become a hot topic at the present time and the study of applying Bluetooth in the indoor positioning has also appeared in many research fields. In this paper, we make field measurement of the path loss in the Bluetooth wireless

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10

Bertuletti, Stefano. "Development and applications of an innovative wearable system based on time-of-flight technology for the measurement of the human movement." Doctoral thesis, 2019. http://hdl.handle.net/11573/1243063.

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The analysis of the human movement is the subject of many research projects. Recently, thanks to the advancement in the development of high performance and low-power electronic components, wearable sensors have given rise to devices and techniques which allow an objective evaluation of different human movement quantities both inside and outside the laboratory setting (e.g. during activities of daily living). The objectives of the research conducted and reported in this Ph.D. thesis regard the devise, development, validation and applications of an innovative wearable system, named SWING, for t

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11

LIN, CHING-KAI, and 林敬凱. "Optimization of GPS Positioning Accuracy with Wi-Fi RSSI Measurements and Machine Learning Algorithms." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/z53tsa.

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碩士<br>國立臺北科技大學<br>電子工程系<br>107<br>With the advancement of technology, the combination of mobile devices and geographic information has developed a Location-Based Service (LBS). The most basic function of LBS is positioning. The accuracy of positioning also affects the application level of LBS. The higher the positioning accuracy, the wider the application level. The most common outdoor positioning is the Global Positioning System (GPS), and the indoor positioning is to make a positioning by receiving different Wi-Fi signal sources and receiving strengths, because the streets in the bustling me

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12

Su, Shin-Hua, and 蘇信華. "Implementation of a Mobile Robot Tracking System Using RSS Measurements." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/04660915844770671335.

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碩士<br>國立成功大學<br>電機工程學系專班<br>97<br>Recently, Wireless sensor networks have been applied to home care and environmental monitoring systems to provide many context-aware services. In addition to the sensor networks, it is anticipated that future e-home will feature mobile robots to facilitate interactive services. The thesis attempts to establish a personal tracking robot system based on sensor networks and mobile robot techniques. In the thesis, sensor network nodes are installed in the robots to provide data communication and range measurement capabilities. The range measurements are based on t

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13

Liu, Jian-Ting, and 劉建廷. "Data Fusion of RSS and TOA Measurements for NLOS Mitigation and Wireless Location." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/53251652784756047416.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>98<br>The major problems encountered in wireless location are the effects caused by non-line of sight (NLOS) propagation and multipath interference. In the thesis, we propose an approach to mitigate NLOS error. First of all, we use improved biased Kalman filter (IBKF) based on time of arrival (TOA) measurement to identify and mitigate NLOS error. Applying the statistic characteristic that the standard deviation of the NLOS propagation errors is generally much larger than that of measurement noises in the LOS condition, we combine hypothesis test and sliding window

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14

Vicente, David José Marques. "Distributed Algorithms for Target Localization in Wireless Sensor Networks Using Hybrid Measurements." Master's thesis, 2017. http://hdl.handle.net/10362/27875.

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This dissertation addresses the target localization problem in wireless sensor networks (WSNs). WSNs is now a widely applicable technology which can have numerous practical applications and offer the possibility to improve people’s lives. A required feature to many functions of a WSN, is the ability to indicate where the data reported by each sensor was measured. For this reason, locating each sensor node in a WSN is an essential issue that should be considered. In this dissertation, a performance analysis of two recently proposed distributed localization algorithms for cooperative 3-D wirel

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15

Kane, Emily A. "Behavioral Performance and Evolution of Feeding Modes in Odontocetes." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-05-463.

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Vertebrate evolution has resulted in a diversity of feeding mechanisms. Cetaceans are secondarily derived tetrapods that have returned to a marine habitat. As a result, they display feeding modes that have converged with more basal aquatic vertebrates, but display a diversity of new solutions and adaptations. To begin to explore the diversity of feeding adaptations among odontocetes, kinematics of feeding modes and feeding adaptations for belugas (Delphinapterus leucas), Pacific white-sided dolphins (Lagenorhynchus obliquidens), and long-finned pilot whales (Globicephala melas) were characteri

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